Calculators for Everything

Fast, simple and accurate calculators for money, math, business and everyday decisions.

What do you need to calculate?

All calculators

Every calculator runs entirely in your browser — nothing you enter is sent anywhere.

Loans, EMIs, investments and returns.

GST, pricing and business math.

Percentages, ratios and everyday arithmetic.

Averages, spread and distributions.

Body metrics and wellbeing estimates.

Durations, ages and date differences.

Practical day-to-day calculations.

Instant results: Every calculation runs locally in your browser as you type. No waiting, no page reloads, no server round-trip.
Private by default: Your figures never leave your device. There is no account, no tracking of what you calculate and nothing stored.
Formulas shown: Each calculator documents the exact formula and a worked example, so you can verify the result rather than trust it blindly.

25 calculators available, with more added regularly.