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Powerful calculators for finance, investment and business

Fast, accurate tools for the numbers that actually move your money — from crypto profit and market cap to portfolio rebalancing.

Instant results Formulas shown Works on mobile

Popular calculators for financial markets

The tools people reach for most, each with the working shown so you can check the maths.

Work out realised gain, loss and ROI on any crypto position.

Measure percentage movement between two prices in seconds.

Multiply price by supply to size up any coin or company.

Total return across income and capital gain over your holding window.

See exactly what to buy and sell to hit your target weights.

Blend multiple buys into a single average cost per share.