Calculators

BMI and nutrition calculators

Body

BMI Calculator

Calculate your Body Mass Index (BMI) based on height and weight

bmi bodymassindex Calculator

Construction

Concrete Calculator

concrete yards bags

Square Footage Calculator

square footage area

Education

Gpa Calculator

gpa grades school

Grade Calculator

grade test score

Financial

Mortgage Calculator

Monthly mortgage payment with taxes, insurance, PMI and amortization

mortgage home loan

Loan Calculator

Monthly loan payment with total interest and amortization

loan amortization payment

Auto Loan Calculator

Monthly car payment with down payment, trade-in, tax and fees

auto car loan

Compound Interest Calculator

Future value of savings with compounding and contributions

compound interest investment

Simple Interest Calculator

Interest and total with linear simple interest plus effective APR

simple interest apr

Retirement / 401k Calculator

Future 401k balance with employer match plus contributions-vs-growth split

retirement 401k pension

Salary to Hourly / Paycheck Calculator

Hourly rate from salary plus paycheck gross and take-home estimate

salary hourly paycheck

Income Tax Calculator (2025, Single Filer)

2025 federal tax estimate with bracket breakdown

income tax paycheck

Sales Tax / VAT Calculator

Add/remove sales tax & VAT with receipt totals

sales vat tax

Tip + Bill Split Calculator

Tip calculator with bill splitting

tip gratuity bill

Discount, Margin & Markup Calculator

Percent-off and margin/markup calculator

discount percent-off margin

APR Calculator: Nominal, Effective & True APR

Nominal, effective & true APR calculator

apr rate loan

Future Value Calculator: Growth, Present Value & Time to Goal

Future & present value calculator

future present value

Debt Payoff Calculator: Avalanche vs Snowball

Debt and credit-card payoff calculator

debt payoff credit

Savings & CD Calculator: APY Growth

Savings and CD growth calculator

savings cd deposit

Investment ROI & CAGR Calculator: Solve the Return

ROI, CAGR and holding-period return calculator

investment roi cagr

Inflation Calculator

inflation cpi purchasing

Rent Vs Buy Calculator

rent buy house

Affordability Calculator

affordability house budget

Refinance Calculator

refinance mortgage rate

Down Payment Calculator

down payment pmi

Amortization Calculator

amortization schedule loan

Health

Nutrition Calculator

Calculate calories and macronutrients based on body composition and activity

nutrition calories macros

Calorie Calculator

calorie tdee deficit

Bmr Calculator

bmr metabolism rate

Calories Burned Calculator

calories burned exercise

Macro Calculator

macros protein carbs

Protein Calculator

protein intake daily

Water Intake Calculator

water hydration intake

Sleep Calculator

sleep cycles bedtime

Heart Rate Calculator

heart rate zones

Pace Calculator

pace running speed

Pregnancy Calculator

pregnancy trimester weeks

Due Date Calculator

due date edd

Ovulation Calculator

ovulation period fertile

Bac Calculator

bac alcohol blood

Weight Loss Calculator

weight loss deficit

One Rep Max Calculator

one rep max

Math

Percentage Calculator

percentage percent increase

Percent Change Calculator

percent change difference

Scientific Calculator

scientific trig log

Fraction Calculator

fraction simplify mixed

Average Calculator

mean median mode

Stddev Calculator

standard deviation variance

P Value Calculator

p-value confidence interval

Sci Notation Calculator

scientific notation exponent

Sigfig Calculator

significant figures precision

Log Calculator

log logarithm base

Exponent Calculator

exponent power root

Quadratic Calculator

quadratic equation solver

Triangle Calculator

triangle pythagorean sides

Geometry Calculator

area volume geometry

Ratio Calculator

ratio proportion simplify

Probability Calculator

probability odds chance

Numbers To Words

numbers words text

Rounding Calculator

rounding round decimals

Time

Age Calculator

age birthday years

Date Calculator

date difference add

Time Duration Calculator

time duration hours

Work Hours Calculator

work hours timesheet

Countdown Calculator

countdown days until

Business Days Calculator

business days workdays

World Clock Calculator

world clock timezone

Timer Calculator

timer stopwatch alarm

Time To Decimal

time decimal convert

Week Number Calculator

week number iso