Clear answers for real-life decisions

Make the numbers make sense.

Fast, transparent calculators for money, health, math, and the everyday moments where a confident answer matters.

✓ No downloads✓ Free to use✓ Results explained

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New tools for your toolkit

%Math

Percentage calculator

Find percentages, change, discounts, and markups.

⇄Everyday

Unit converter

Convert length, weight, and volume between systems.

-Finance

Loan payoff

Estimate payments, total interest, and payoff time.

$Finance

Savings goal

Find the monthly amount needed for a target.

+Investing

Investment return

Model contributions and an estimated annual return.

%Everyday

Sales tax and tip

Calculate discounts, tax, tip, and split bills.

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Popular with practical people

01Mortgage calculatorPlan before you make an offer→02Compound interest calculatorTurn a savings goal into a plan→03Percentage calculatorGet the exact figure, instantly→

What people say

“Finally, a calculator that shows the working instead of just throwing out a number.”
— Aisha R., everyday user

From the journal

Guides that help you decide

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