Most people can’t do compound interest calculations in their head. But understanding exactly how quickly your money is growing (or shrinking) over time is crucial when you’re developing your financial ...

Compound interest can help turbocharge your savings and investments, or it can quickly lead to an unruly balance, keeping you stuck in a cycle of debt. Its magic can help you earn more — or owe more.

This calculator works out how much a lump sum saved or invested, or regular monthly amounts put into the pot, could be worth over time.