Exact 100% free No sign-up Instant

Do the math. See the working.

Fast, exact calculators for fractions, percentages, ratios and averages, plus a full scientific calculator and an equation solver. Type your numbers and read the answer, with the steps shown and no sign-up.

1/2 + 1/3 = 5/615% of 200 = 308 : 12 = 2 : 3gcd(24, 36) = 12

Why calculate here

Most calculator sites bury one tool under a wall of ads and pop-ups. This is a clean set of exact calculators that load fast, show the working, and just give you the answer.

Exact answers

The maths is computed precisely, with fractions and integers kept exact rather than rounded along the way.

100% free

Every calculator, every mode, with no paid tier and no locked options.

No sign-up

No account, no login, no email wall. Type your numbers and read the answer.

Instant as you type

Results update with every keystroke, with the working shown so the answer makes sense.

Works offline

Load a calculator once and it keeps working with no connection.

7 calculators, no catch

Pick a calculator and start instantly. Every one runs in your browser, free.

Exact by design, not rounded.

Fractions and whole numbers stay exact through the whole calculation, and only the final display is rounded. It all runs in your browser, so nothing is sent anywhere and there is no limit on how many calculations you make.

Built by CodingEagles
  • Exact, step-by-step answers
  • 100% free
  • No sign-up, no app
  • Instant as you type
  • Works offline after first load

The working, shown

Each calculator shows the method behind the answer, so you can follow it and check it, not just copy a number.

No ads in the way

The calculator is the first thing on the page, with no pop-ups or walls between you and the answer.

Works on any device

Runs in any modern browser on phone, tablet and desktop, with no app to install.