CalcPilot
100% free · no sign-up

Free online calculators & tools — made for the USA

Every calculator
you actually need.

Fifteen fast, accurate tools for money, math, health and time — no accounts, no downloads, no ads in your way. Type, tap, done.

Popular:MortgageLoanTipPercentageBMIAge
MortgageBMIPercentageTipGPAAgeUnitsLoansCaloriesFractions
01

Financial Calculators

Money, loans, interest and everyday spending — in plain US dollars.

5 free tools

Mortgage Calculator

Estimate your monthly mortgage payment, including principal, interest, property taxes, insurance, and PMI. See your full PITI breakdown instantly.

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Loan Calculator

Calculate the monthly payment and total interest for any personal, auto, or student loan. Adjust the amount, term, and rate to see your full amortization.

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Compound Interest Calculator

See how savings and investments grow over time with compound interest and regular monthly deposits. Watch your money grow year by year with a clear view.

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Tip Calculator

Work out the right tip for restaurants, delivery, and services — then split the bill evenly between friends. Quick, accurate, and easy on any device.

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Discount Calculator

Find the final sale price and exactly how much you save after a percentage discount and sales tax. Perfect for coupons, clearance, and seasonal markdowns.

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02

Math Calculators

Percentages, fractions and everyday numbers made simple.

2 free tools

Percentage Calculator

Calculate percentages three ways: percent of a number, what percent one number is of another, and percentage change. Clear results with every step shown.

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Fraction Calculator

Add, subtract, multiply, and divide fractions with results simplified to lowest terms and shown as mixed numbers. A clean tool for everyday fraction math.

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03

Health & Fitness Calculators

BMI, calories and the daily numbers behind your wellness goals.

2 free tools

BMI Calculator

Calculate your Body Mass Index with US or metric units and see the healthy weight range for your height. A quick, private check of where you stand.

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Calorie Calculator

Estimate the daily calories you need to maintain, lose, or gain weight using the Mifflin-St Jeor equation. Get your BMR and TDEE in seconds, free.

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04

Date & Time Calculators

Ages, durations, deadlines, schedules and work hours.

3 free tools

Age Calculator

Find your exact age in years, months, weeks, days, and hours — plus a countdown to your next birthday. Fast, accurate, and easy on any device.

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Date Calculator

Count the days between two dates, or add and subtract days, weeks, months, and years from any date. Includes business-day and deadline countdown options.

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Hours Calculator

Calculate hours and minutes between two times — perfect for timesheets, shifts, and work hours. Handles overnight shifts and estimates your pay instantly.

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05

Conversion Tools

Switch between US customary and metric units instantly.

1 free tool

Unit Converter

Convert length, weight, temperature, volume, area, and speed between US customary and metric units. Fast, accurate conversions for everyday use.

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06

Other Calculators

Handy everyday tools that defy neat categories.

2 free tools

GPA Calculator

Calculate your grade point average on the standard 4.0 scale using course grades and credit hours. Track your semester and cumulative GPA with ease.

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Fuel Cost Calculator

Estimate the gas cost of any trip from the distance, your vehicle’s MPG, and the price per gallon. Plan your drive budget and compare routes in seconds.

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Instant results

Every tool runs right in your browser. No waiting, no uploads, nothing sent to a server — your numbers stay on your device.

No sign-up, ever

No accounts, no email walls, no “premium” unlocks. Every calculator is free and fully functional the moment the page loads.

Built for mobile

Large touch targets, thumb-friendly inputs and fast pages — whether you’re splitting a check at the table or running numbers at your desk.