Find the Calculator You Need
Browse all calculators from MyCruncher and choose the free tool you need for everyday math, planning and estimates.
Showing 85 calculators
HVAC Repair & Replacement Cost Calculator
Estimate home heating and cooling repair or replacement costs with simple, homeowner-friendly questions.
Estimate HVAC costs →Age Calculator
Calculate your exact age and countdown to your next birthday.
Find my age →Date Difference Calculator
Calculate the exact time between two dates in years, months, days, weeks, hours and more.
Compare dates →Event Countdown Timer
Create a live countdown to birthdays, vacations, weddings, holidays and other upcoming events.
Start a countdown →Vehicle Trade-In Calculator
Estimate trade equity, negative equity, sales tax and the amount you may need to finance.
Calculate trade-in →Car Loan Calculator
Estimate your car payment, interest and total loan cost.
Crunch it →Vehicle Depreciation Calculator
Estimate current vehicle value, total depreciation and year-by-year value loss over time.
Calculate depreciation →Discount Calculator
Find out how much you save and what you’ll pay.
Save money →Fuel Cost Calculator
Estimate fuel costs for your next drive or road trip.
Calculate fuel →EV Charging Cost Calculator
Estimate EV charging costs using battery size, charge level, electricity rate and charging efficiency.
Calculate charging cost →Loan Payment Calculator
Estimate monthly payments and the total cost of a loan.
Calculate payment →Amortization Calculator
Calculate loan payments, total interest, payoff time and view a detailed payment schedule.
View amortization →Love Calculator
Have some fun and calculate your compatibility score.
Check the match →Credit Card Payoff Calculator
Estimate payoff time, total interest and how extra payments can reduce your balance.
Calculate payoff →Debt Payoff Calculator
Compare debt payoff strategies and estimate how long it may take to become debt-free.
Plan debt payoff →Compound Interest Calculator
Estimate future value, interest earned and how regular contributions can grow over time.
Calculate growth →Inflation Calculator
Compare historical U.S. inflation and project future prices and purchasing power.
Calculate inflation →Electricity Bill Calculator
Estimate electricity bills, kWh usage, energy costs, and appliance operating expenses.
Calculate electricity costs →401(k) Retirement Calculator
Estimate how your 401(k) could grow with contributions, employer matching and investment returns.
Plan retirement →Roth IRA Calculator
Estimate how your Roth IRA could grow with regular contributions and long-term investment returns.
Estimate growth →Rent vs. Buy Calculator
Compare the estimated long-term cost of renting a home versus buying one.
Compare rent vs. buy →Home Affordability Calculator
Estimate how much home you may be able to afford based on income, debts, down payment and housing costs.
Estimate affordability →Debt-to-Income Calculator
Calculate front-end and back-end DTI using income, housing costs and recurring debt payments.
Calculate DTI →Mortgage Calculator
Estimate your monthly mortgage payment and total loan cost.
Crunch it →Salary / Hourly Pay Calculator
Convert hourly pay to salary or salary to hourly pay and estimate weekly, biweekly, monthly and annual earnings.
Calculate pay →Work Hours Calculator
Track daily clock-in, clock-out and break times to estimate weekly hours, overtime and gross pay.
Calculate work hours →Paycheck Calculator
Estimate your paycheck and take-home pay.
Crunch my paycheck →
California Child Support Calculator
Explore unofficial California child support estimates using parental income, parenting time, and number of children. Compare scenarios and print a planning summary.
Estimate child support →Percentage Calculator
Solve everyday percentages, increases and decreases quickly.
Crunch percentages →Random Number Generator
Generate a random number within the range you choose.
Generate a number →Savings Goal Calculator
See what it takes to reach your savings goal.
Plan my savings →Sales Tax Calculator
Calculate sales tax and your final purchase total.
Calculate tax →Tip Calculator
Calculate the tip, total bill and amount per person.
Calculate tip →Travel Planner
Crunch the numbers for your next trip.
Plan my trip →Time Converter
Quickly convert time between different formats.
Convert time →Pregnancy Due Date Calculator
Estimate your due date and important pregnancy milestones.
Calculate due date →Pregnancy Weight Gain Calculator
Estimate a healthy pregnancy weight-gain range based on your pre-pregnancy BMI and current week.
Calculate weight gain →Ovulation Calculator
Estimate your ovulation date, fertile window, next expected period, and upcoming menstrual cycles.
Calculate fertile window →Calorie Deficit Calculator
Estimate daily maintenance calories, compare calorie deficits, and calculate an illustrative daily calorie target.
Calculate calorie deficit →Body Fat Percentage Calculator
Estimate body fat percentage using the U.S. Navy circumference method. Calculate estimated fat mass and fat-free mass from body measurements.
Calculate body fat →Macro Calculator
Calculate daily protein, carbohydrate, and fat goals based on your calorie needs. Choose balanced, higher-protein, or custom macro percentages.
Calculate your macros →TDEE Calculator
Estimate your Total Daily Energy Expenditure (TDEE) and maintenance calories using age, height, weight, and activity level. Compare daily and weekly calorie estimates.
Calculate your TDEE →Sleep Calculator
Find ideal bedtimes and wake-up times based on sleep cycles.
Sleep better →Party Drink Calculator
Estimate drinks, water, ice and cups for your next party.
Plan my party →Pizza Calculator
Find out how many pizzas and slices you need for the whole crew.
Plan my pizzas →Water Intake Calculator
Estimate your daily fluid needs based on weight, activity and lifestyle.
Calculate my water →Pace Calculator
Calculate your running or walking pace, speed and estimated race finish times.
Calculate my pace →Treadmill Pace Calculator
Convert treadmill speed (mph or km/h) to running pace and back. Estimate 5K and 10K times, compare incline effort, and print a treadmill pace chart.
Calculate treadmill pace →Candy Calculator
Estimate how much candy you need for parties, candy buffets and special events.
Calculate my candy →Candy Buffet Calculator
Plan candy quantities, varieties, containers and favor bags for your candy buffet.
Plan my candy buffet →Recipe Scale Calculator
Scale ingredient amounts up or down for any number of servings.
Scale my recipe →Charcuterie Table Calculator
Plan cheese, meats, crackers, fruit and extras for the perfect grazing table.
Plan my charcuterie table →Torque Converter
Convert foot-pounds, inch-pounds, Newton-meters and kilogram-force meters.
Convert torque →Tire Size Calculator
Compare tire diameter, circumference, revolutions per mile and speedometer differences.
Compare tire sizes →Gear Ratio Calculator
Estimate engine RPM from vehicle speed, tire diameter, axle ratio and transmission ratio.
Calculate gear ratio →Horsepower-to-Weight Calculator
Compare horsepower and vehicle weight with useful performance ratios.
Calculate power-to-weight →Speedometer Error Calculator
Estimate actual road speed and speedometer error after changing tire diameter.
Check speedometer error →RPM at Speed Calculator
Estimate engine RPM from vehicle speed, tire diameter, axle ratio and transmission ratio.
Calculate RPM at speed →Diesel Fuel Runtime Calculator
Estimate diesel equipment runtime, usable fuel, driving range and daily fuel cost.
Calculate diesel runtime →Flooring Calculator
Estimate square footage, waste allowance, boxes needed and material cost.
Calculate flooring →Concrete Calculator
Estimate cubic feet, cubic yards, bags needed and material cost.
Calculate concrete →Paint Calculator
Estimate paintable wall area, gallons needed, primer and material cost.
Calculate paint →Deck Calculator
Estimate deck area, board quantities, waste allowance and decking cost.
Calculate decking →Cabinet Calculator
Estimate cabinet quantities, filler allowance, countertop length and project cost.
Calculate cabinets →Turkey Cooking Calculator
Estimate turkey roasting times, safe thawing times, and when to start cooking for your holiday dinner.
Calculate turkey cooking time →BBQ Calculator
Estimate meat, buns and sides for your next BBQ or cookout.
Plan my BBQ →Thanksgiving Dinner Calculator
Plan turkey, sides, rolls, gravy and dessert for the whole Thanksgiving table.
Plan Thanksgiving dinner →Cake Serving Calculator
Estimate cake servings and see if you have enough cake for your guests.
Calculate cake servings →Cookie Batch Calculator
Scale a cookie recipe for the amount you need and estimate batches and baking trays.
Plan my cookie batch →Cooking Measurement Converter
Convert cups, tablespoons, teaspoons, ounces, milliliters, liters and more.
Convert measurements →Kitchen Weight Converter
Convert ounces, pounds, grams and kilograms for cooking and baking.
Convert kitchen weights →Job Estimate Calculator
Create a quick estimate using labor, materials, overhead, profit and tax.
Create job estimate →Construction Pro Calculator
Construction math for pitch, stairs, board feet, area, volume, circles and unit conversions.
Open Construction Pro →Cost Estimator Pro
Build detailed job estimates with materials, labor, overhead, profit, tax and professional estimate tools.
Build a cost estimate →BMI Calculator
Estimate Body Mass Index, weight category and a healthy weight range.
Calculate BMI →Calorie Calculator
Estimate BMR, maintenance calories and daily calorie targets for weight loss or gain.
Calculate calories →Dog Age Calculator
Estimate your dog’s human-equivalent age based on age and size.
Calculate dog age →Cat Age Calculator
Estimate your cat’s human-equivalent age and general life stage.
Calculate cat age →Dog Feeding Calculator
Estimate daily food needs based on weight, activity and calories per cup.
Calculate dog food →Cat Feeding Calculator
Estimate daily food needs based on weight, activity and calories per cup.
Calculate cat food →Dog Healthy Weight Estimator
Estimate a healthy target weight using your dog’s current weight and body condition score.
Estimate healthy weight →Pet Water Intake Calculator
Estimate daily water needs for dogs and cats based on weight and activity.
Calculate water needs →Cat Healthy Weight Estimator
Estimate a healthy target weight using your cat’s current weight and body condition score.
Estimate healthy weight →Pet Calorie Calculator
Estimate daily calorie needs for dogs and cats based on weight, life stage and activity.
Calculate pet calories →Pet Birthday Calculator
Find your pet’s exact age, next birthday and countdown to the big day.
Calculate pet birthday →BTU Calculator
Estimate the cooling capacity your room or space needs.
Calculate BTUs →HVAC Replacement Cost Calculator
Estimate replacement costs for AC, furnaces, heat pumps and mini-splits. Compare Goodman, Samsung, Bosch and YORK quotes and energy costs.
Compare HVAC Costs →Swear Jar Calculator
Turn colorful language into fines and see how quickly the swear jar can fill up.
Calculate the damage →Sneaky Calculator
A calculator with a secret! Discover hidden mind-reading math tricks and challenge a friend.
Discover the secret →Unit Converter
Convert length, weight, volume, temperature, area and speed quickly.
Convert units →Temperature Converter
Convert Fahrenheit, Celsius and Kelvin quickly and easily.
Convert temperature →Grade Calculator
Calculate class grades, weighted averages, and the score needed on your final exam.
Calculate grades →GPA Calculator
Calculate semester, cumulative, and weighted GPA using grades and credit hours.
Calculate GPA →Final Exam Calculator
Calculate the exam score you need to reach your target course grade, or predict your final grade based on an expected exam score.
Calculate final exam grade →SAT Score Calculator
Calculate Digital SAT totals, plan target scores, compare superscores, and track Reading & Writing and Math practice accuracy.
Calculate My SAT Score →Lottery Winnings Calculator
Estimate jackpot payouts, taxes and your potential take-home winnings.
Calculate lottery winnings →Currency Converter
Convert popular world currencies using current exchange rates.
Convert currency →Golf Handicap Calculator
Estimate your golf handicap using recent scores, Course Ratings and Slope Ratings.
Calculate handicap →Batting Average Calculator
Calculate batting average, on-base percentage, slugging percentage, OPS and other hitting stats.
Calculate batting stats →Basketball Shooting Percentage Calculator
Calculate FG%, 2P%, 3P%, free throw percentage, effective field goal percentage and points scored.
Calculate shooting stats →Football Passer Rating Calculator
Calculate NFL passer rating or college passer efficiency from completions, attempts, yards, touchdowns and interceptions.
Calculate passer rating →Fantasy Football Points Calculator
Calculate fantasy football points using Standard, Half-PPR, Full PPR or custom league scoring.
Calculate fantasy points →Astrology Birth Chart Calculator
Discover your Sun, Moon and Rising signs, planetary placements and birth chart.
Crunch it →Free Online Calculators for Everyday Questions
Looking for a calculator for a home project, a purchase, a recipe or a number you need to double-check? The MyCruncher All Calculators directory brings practical tools together so you can start with your question and find a suitable calculator. Search the cards above by name or topic, or use a category filter to narrow your choices.
This guide explains how the calculator categories differ, which information to gather before you start and how to interpret the results. You can also follow the category links below to explore a specific subject in more detail.
How to Find the Right Calculator
- Start with the answer you need. Decide whether you want a payment, quantity, measurement, percentage, date or other result.
- Search or choose a category. Try a focused term such as “flooring,” “recipe” or “fuel.” Clear the search or choose All to broaden the results.
- Open the calculator and check its inputs. Gather the measurements, dates, prices or other details it requests.
- Review the result and assumptions. Check the units, time period and any allowances before using the answer.
- Compare another scenario. Change one input at a time to see how a different quantity, price or measurement affects the calculation.
Browse Calculators by Category
Finance & Money Calculators
Explore borrowing, saving and everyday purchase calculations. This category includes mortgage, loan payment, amortization, debt payoff, compound interest, savings, discount and tip tools. Choose a payment calculator for borrowing questions and a savings calculator for contribution or growth estimates.
Health & Fitness Calculators
Find tools for BMI, calorie estimates, running pace, hydration, sleep timing and age. Use these results as general reference information; individual health needs and circumstances can differ from a calculator’s assumptions.
Home & DIY Calculators
Work through material quantities for paint, flooring, concrete, decking and cabinets. Measure the project first, then check coverage, package sizes and waste allowances before making a shopping list.
Automotive Calculators
Explore vehicle and driving calculations, including fuel costs, depreciation, trade-in values, torque conversions, tire comparisons and gearing. Match the units and vehicle details to the question you are checking.
Business & Work Calculators
Organize project pricing and construction calculations with tools such as Job Estimate, Construction Pro and Cost Estimator Pro. Separate quantities from costs, and review which allowances are included in an estimate.
Sports Calculators
Calculate or compare game statistics with basketball, baseball, golf, football and pace tools. When using a scoring calculator, check that the selected scoring system matches the game, league or format you are using.
Cooking & Baking Calculators
Adjust recipe quantities, compare kitchen measurements and plan servings. Tools include recipe scaling, pizza, cookies, cake servings, BBQ and kitchen conversions. Ingredient quantities and cooking times may need different adjustments when scaling a recipe.
Party & Entertaining Calculators
Estimate drinks, candy and charcuterie quantities for a gathering. Begin with the guest count, then consider event length, serving sizes, other food and guest preferences when reviewing the estimate.
Travel Calculators
Explore trip planning, fuel and EV charging estimates. Use realistic distance and consumption inputs, and account separately for expenses such as parking, tolls and lodging when building a trip budget.
Date & Time Calculators
Find age, date difference, time conversion and countdown tools. Choose a date difference calculation to measure an interval or a countdown to track time remaining until a future event.
Everyday Math Calculators
Solve percentage questions and convert measurements or temperatures. Use the Percentage Calculator for portions and changes, the Unit Converter for measurements, and the Temperature Converter for Fahrenheit, Celsius and Kelvin.
Pet Calculators
Explore dog and cat age estimates, feeding, water, calorie and birthday tools. Pet care estimates are starting points for discussion and planning; a pet’s condition, life stage and veterinary guidance also matter.
Air Conditioning Calculators
Start with the BTU Calculator for a cooling-capacity estimate. Room dimensions are useful inputs, while building conditions and equipment requirements also affect the final system choice.
Lottery Calculators
Explore lottery winnings and payout estimates. A payout calculation describes an assumed prize scenario; it does not predict winning numbers or improve the chance of winning.
Fun Calculators
Try the Love Calculator, Random Number Generator or Swear Jar Calculator for lighthearted number activities. Entertainment results, such as a love score, are for fun rather than a factual assessment.
Which Calculator Should You Use?
| Your question | Suggested tool | Have ready |
|---|---|---|
| What will this item cost after a discount? | Discount Calculator | Original price and discount percentage. |
| How much flooring should I buy? | Flooring Calculator | Room dimensions, waste allowance and box coverage. |
| How much might fuel cost for this trip? | Fuel Cost Calculator | Distance, fuel economy and price per gallon. |
| How do I adjust a recipe for more servings? | Recipe Scale Calculator | Original servings, target servings and ingredients. |
| How many pizzas should I order? | Pizza Calculator | Guest details and pizza-serving assumptions. |
| What percentage does this number represent? | Percentage Calculator | The part and the total. |
| What is this temperature in another scale? | Temperature Converter | The temperature and starting scale. |
| How many fantasy points did a player score? | Fantasy Football Points Calculator | Player statistics and league scoring settings. |
Worked Examples: Turn a Question into a Calculation
These simplified examples show the arithmetic behind common tasks. A live calculator may include additional inputs or rounding options.
Shopping Example: Take 25% Off an $80 Item
Discount = $80 × 0.25 = $20.
Sale price = $80 − $20 = $60.
Use the Discount Calculator to check another price or discount. Add any applicable tax, delivery charge or other fee separately.
Home Project Example: Flooring for a 12-by-10-Foot Room
Room area = 12 × 10 = 120 square feet.
With an illustrative 10% waste allowance:
120 × 1.10 = 132 square feet.
If each box covers 20 square feet, 132 ÷ 20 = 6.6 boxes. Round up to 7 whole boxes. Choose the actual waste allowance for your layout and material, and use the Flooring Calculator to organize the estimate.
Travel Example: Fuel for a 300-Mile Trip
At an assumed 25 miles per gallon:
300 ÷ 25 = 12 gallons.
At an illustrative $4 per gallon:
12 × $4 = $48.
Enter the full distance you intend to drive in the Fuel Cost Calculator. For a round trip, include both directions. Actual consumption and prices can differ.
Kitchen Example: Increase a Recipe from 4 to 10 Servings
Scaling factor = 10 ÷ 4 = 2.5.
An ingredient listed as 2 cups becomes
2 × 2.5 = 5 cups.
Use the Recipe Scale Calculator for ingredient quantities. Pan sizes, baking times and some recipe techniques may need separate adjustments.
Calculations, Estimates and Entertainment Results
| Result type | Example | How to use it |
|---|---|---|
| Defined arithmetic | A percentage or unit conversion. | Check input values, unit definitions and displayed precision. |
| Planning estimate | Materials, fuel, food or a payment scenario. | Review assumptions and allow for real-world differences. |
| Reference estimate | A wellness or pet care calculation. | Use as general information alongside individual circumstances and appropriate professional guidance. |
| Entertainment | A love score or playful activity. | Enjoy it as a recreational result. |
Get More Useful Results from Online Calculators
- Keep units consistent. Check feet versus inches, miles versus kilometers and volume versus weight before entering a value.
- Check the time period. Monthly and annual amounts are different inputs. Confirm the period requested by the tool.
- Separate a rate from an amount. A percentage, price per gallon or cost per square foot must be paired with the corresponding quantity.
- Avoid rounding too early. Keep useful precision through intermediate steps, then round the final result appropriately.
- Read what is included. Taxes, delivery, labor, waste or other costs may require separate entries or additional calculations.
- Change one assumption at a time. This makes it easier to understand why two scenarios produce different answers.
Frequently Asked Questions About MyCruncher Calculators
Are MyCruncher calculators free to use?
Yes. MyCruncher provides free online calculators for everyday calculations and planning. Browse the directory above and open the tool that matches your question.
How do I find a calculator if I do not know its name?
Search using the subject or task, such as “paint,” “fuel” or “recipe.” You can also use the category filters or the category guide in this section to narrow your search.
Why can the same calculator appear in more than one category?
Some tasks overlap. Fuel costs are relevant to both driving and travel, while percentages are useful for money questions and everyday math. Multiple category links can lead to the same tool.
Can I use the calculators on my phone?
The tools are designed for use in a web browser on phones, tablets and computers. Check each input label and selected unit before calculating, especially when entering measurements on a small screen.
Why does my answer differ from another calculator?
Compare the inputs, formulas, units, rounding and assumptions. Two tools may include different costs, time periods, serving sizes or calculation methods even when their names are similar.
Can a calculator give me an exact project cost?
A calculation can organize quantities and entered prices, but a final project cost also depends on site conditions, supplier prices, labor and scope. Treat an early estimate as a planning figure and confirm the details before purchasing or quoting.
Can I compare different scenarios?
Yes. Calculate a starting scenario, record the result, then change an input and calculate again. Keep the other assumptions consistent so the comparison is meaningful.
Can I add a MyCruncher calculator to my website?
Visit the Free Calculator Embeds page to see available widgets, preview them and copy their embed code. Embed availability is separate from the full calculator directory.
Where can I see a simple list of calculator links?
Open the Calculator Sitemap for a text-based directory grouped by topic, or use the searchable cards at the top of this page.
Free Calculator Widgets for Your Website
Want to make a useful calculation available to your own visitors? Explore the available MyCruncher embeds and choose a widget that fits your page.
Browse Free Calculator Embeds →