Skip to content
  • Money 9 Loans, savings growth, retirement, pay, and inflation.
  • Credit and debt 5 Payoff plans, minimum payments, utilization, and DTI.
  • Home and property 6 Affordability, refinancing, and project materials.
  • Health 7 BMI, calories, body fat, due dates, and pace.
  • Everyday math 4 Percents, fractions, averages, and ratios.
  • Dates and time 5 Age, days between dates, business days, and durations.
  • Conversions 5 Length, weight, speed, data, area, and fuel economy.
  • School 3 GPA, weighted grades, and the final exam score you need.
  • Business 6 Margin, markup, break-even, pricing, and sales tax.
New Mortgage payment Estimate a full monthly mortgage payment with property tax, insurance, PMI, and HOA dues, plus a yearly amortization schedule. Open calculator →
All calculators Methodology Themes

Categories

  • Money 9
  • Credit and debt 5
  • Home and property 6
  • Health 7
  • Everyday math 4
  • Dates and time 5
  • Conversions 5
  • School 3
  • Business 6

Site

  • All calculators
  • Methodology
  • Themes
  • About

    No calculator matches. Try a shorter word.

    ↑↓ to move Enter to open Esc to close

    All calculators

    Search

    Find a calculator by name, keyword, or category. Matching is done in your browser.

    50 calculators

    No calculators match that search.

    Try a shorter word, or browse a section: Money, Health, Home and property, or Everyday math.

    • Money Loan payment calculator Estimate the monthly payment, total interest, and total cost of a fixed-rate loan.
    • Money Tip split calculator Split a bill with tip across a group, and optionally round each share up to the next dollar.
    • Money Compound interest calculator See how a starting balance and monthly deposits grow with compound interest over time.
    • Money Savings goal calculator Find the monthly amount to save to reach a goal by a date, counting what you have and the interest it earns.
    • Money Retirement savings calculator Project your retirement balance from your age, savings, monthly contributions, and an assumed return.
    • Money Inflation calculator See what something costs in the future at an inflation rate you choose, and how much buying power cash loses.
    • Money Salary to hourly calculator Convert an annual salary to an hourly wage, or an hourly wage to yearly, monthly, and weekly gross pay.
    • Money ROI calculator Work out return on investment as a percent, the dollar gain or loss, and the annualized return over time.
    • Money Auto loan calculator Estimate a car payment with price, down payment, trade-in, sales tax, fees, rate, and term, plus total interest.
    • Credit and debt Credit card payoff calculator See how long a credit card balance takes to pay off and how much interest you will pay.
    • Credit and debt Debt payoff planner: snowball vs avalanche Plan paying off several debts with the snowball or avalanche method and compare time to debt-free and total interest.
    • Credit and debt Debt-to-income ratio calculator Calculate your debt-to-income ratio from monthly gross income and debt payments, with housing shown on its own.
    • Credit and debt Credit utilization calculator Calculate overall and per-card credit utilization, and how much to pay down to reach a target ratio.
    • Credit and debt Credit card minimum payment calculator See how long paying only the credit card minimum takes and what it costs, compared with keeping the first payment fixed.
    • Home and property Mortgage payment calculator Estimate a full monthly mortgage payment with property tax, insurance, PMI, and HOA dues, plus a yearly amortization schedule.
    • Home and property Mortgage affordability calculator Estimate a home price from income, debts, and housing costs using the common 28/36 guideline.
    • Home and property Mortgage refinance calculator Compare your current mortgage payment with a refinance, find the break-even month, and see lifetime interest savings.
    • Home and property Square footage calculator Add up the square footage of one or more rectangular rooms, add a waste allowance, and estimate material cost.
    • Home and property Paint calculator Estimate how many gallons of paint a room needs from wall size, doors, windows, coats, and the coverage on the can.
    • Home and property Concrete calculator Estimate cubic yards of concrete and the number of premix bags for a slab, patio, or footing from its size.
    • Health BMI calculator Calculate adult body mass index from height and weight, and see a healthy weight range.
    • Health BMR calculator Estimate basal metabolic rate, the calories your body uses at rest, with the Mifflin-St Jeor equation.
    • Health TDEE and calorie calculator Estimate total daily energy expenditure, the calories you burn in a day, from BMR and your activity level.
    • Health Body fat calculator (US Navy method) Estimate body fat percentage from height and tape measurements with the US Navy circumference method.
    • Health Ideal weight calculator Compare ideal body weight from the Devine, Robinson, Miller, and Hamwi formulas with the BMI healthy weight range.
    • Health Pregnancy due date calculator Estimate a pregnancy due date from the first day of the last period and cycle length, with weeks along and trimester.
    • Health Running pace calculator Find your running pace per mile and per kilometer from distance and time, plus speed and an even-pace marathon time.
    • Everyday math Percentage calculator Find a percent of a number, what percent one number is of another, or the percent change.
    • Everyday math Fraction calculator Add, subtract, multiply, or divide two fractions and get the simplified answer, mixed number, and decimal.
    • Everyday math Average calculator (mean, median, mode) Find the mean, median, mode, range, and sum of a list of numbers, with a plain explanation of each.
    • Everyday math Ratio calculator Simplify a ratio to lowest terms, or scale a ratio up or down to solve for the missing value in A:B = C:D.
    • Dates and time Age calculator Find an exact age in years, months, and days, plus days lived and the next birthday.
    • Dates and time Days between dates calculator Count the days between two dates, with the result in weeks, in years, months, and days, and as weekdays.
    • Dates and time Add or subtract days from a date Add or subtract days, weeks, months, or years from a date and get the resulting date and weekday.
    • Dates and time Time duration calculator Find the hours and minutes between two times, subtract a break, and get decimal hours for a timesheet.
    • Dates and time Business days calculator Count business days between two dates, excluding weekends and any holidays you enter, with both dates included.
    • Conversions Unit converter Convert length, weight, temperature, and volume with exact, standards-based factors.
    • Conversions Speed converter Convert speed between mph, km/h, meters per second, feet per second, and knots with exact factors.
    • Conversions Data size converter Convert bits, bytes, KB, MB, GB, and TB, and the binary KiB, MiB, GiB, and TiB, with both standards shown.
    • Conversions Area converter Convert area between square feet, square meters, acres, hectares, square miles, square yards, and more.
    • Conversions Fuel economy converter (MPG to L/100 km) Convert fuel economy between US mpg, UK mpg, liters per 100 km, and km per liter in one step.
    • School GPA calculator Calculate a credit-weighted GPA on the 4.0 scale from letter grades and course credits.
    • School Final grade calculator Find the score you need on a final exam to reach a target course grade, given your current grade and the final's weight.
    • School Weighted grade calculator Calculate a weighted course grade from category scores and weights, such as homework, quizzes, and exams.
    • Business Profit margin calculator Turn cost and revenue, or cost and a margin percent, into profit, margin, and markup.
    • Business Break-even calculator Find how many units you must sell to cover fixed costs, the break-even revenue, and the units for a profit target.
    • Business Markup calculator Set a selling price from cost and a markup percent, and see the profit per unit and the matching gross margin.
    • Business Discount calculator Find the sale price after a percent off, including a stacked extra discount, and how much you save in total.
    • Business Sales tax calculator Add sales tax to a price, or back the tax out of a total that already includes it, at the rate you enter.
    • Business Freelance hourly rate calculator Work out the hourly rate to charge as a freelancer from your income goal, business costs, billable hours, and tax set-aside.

    ™

    Clear calculators for decisions that involve numbers.

    All calculations run in your browser.

    Categories

    • Money
    • Credit and debt
    • Home and property
    • Health
    • Everyday math

    Categories

    • Dates and time
    • Conversions
    • School
    • Business

    Site

    • Home
    • Search
    • Themes
    • About
    • Methodology
    • Contact

    Legal

    • Privacy Policy
    • Terms of Use
    • Accessibility
    • Disclaimers

    © 2026 calculew. All rights reserved.

    Accessibility

    Text size
    Accessibility statement