Calculators
Every result comes with the formula and a worked example, so you can check the maths yourself.
- Compound interest calculator
Starting sum plus monthly deposits at a fixed rate, with the formula and a worked example.
- APR to APY converter
Turn a nominal APR into the yearly yield with compounding, or reverse it.
- Inflation and purchasing power calculator
How much a sum loses in buying power at a steady yearly inflation rate, with the formula.
- Crypto profit calculator (with fees)
Profit or loss after buy and sell fees, plus the break-even sell price.
- Dollar-cost averaging calculator
Average cost, units and gain or loss when you buy a fixed amount at a list of prices.
- Currency conversion fee calculator
Total cost of a conversion: fixed fee plus the rate markup against the mid-market rate.