About kakaoCalc

kakaoCalc is a free collection of calculators, unit converters and everyday tools. Every tool runs in your browser, so it works quickly on a phone and the numbers you type stay on your device.

Each calculator shows the formula it uses and a worked example, so you can check the result yourself. Rates that change over time — currency, crypto, tax rules — are labelled with the date they were last updated.

Found a mistake or want a tool we don't have? Use the contact page.