Money: Debt, Interest, and Everyday Finance
Small money decisions add up: the order you pay off debts, how interest compounds, and what a percentage really costs. These guides break down the everyday finance maths in plain terms and link to a calculator that does the work in your browser, so you can plan with your own numbers and nothing is uploaded.
Tools in this guide
Debt Payoff
See how fast you can be debt-free with the avalanche or snowball method, and how much interest an extra payment saves.
Percentage Calculator
Work out percentages six ways, from percent of a value to percentage change.
Currency Converter
Convert between 30+ currencies using daily European Central Bank reference rates.