Finance Tools
Finance calculators for compound interest, savings goals, ROI and more. Understand your money.
Money decisions are easier to make when you can see the numbers clearly. This set turns abstract goals into concrete figures: how much a savings target costs per month, what a lump sum grows to with compound interest, the real return on an investment, and the flat cost of simple interest. Each tool shows its working — not just a single answer — so you can weigh options rather than take a number on faith.
Project savings growth with compound interest and regular contributions.
Finance Tools Simple Interest CalculatorCalculate simple interest and the total amount due from principal, rate, and time.
Finance Tools Savings Goal CalculatorFind out how much to save each month to hit a savings goal by a target date, including optional interest.
Finance Tools ROI CalculatorCalculate return on investment (ROI) as a percentage, plus annualized ROI over a holding period.
Finance Tools Mortgage CalculatorFree mortgage calculator.
Finance Tools Investment CalculatorFree investment calculator.
Finance Tools Salary CalculatorFree salary calculator.
See the trade-offs, not just the total
The most useful financial tools reveal the levers behind a result. Stretch a savings deadline and watch the monthly amount fall; change the compounding frequency and see the final balance shift; compare a headline return against its annualised equivalent and a mediocre-looking investment can suddenly look strong — or the reverse. The breakdowns beneath each calculator are designed to make these relationships obvious so you can plan with your eyes open.
Guidance, not financial advice
These calculators are illustrative planning aids, not personalised financial advice, and real markets rarely move in the smooth lines a model assumes. Treat the projections as a starting point for a conversation with a qualified professional when the stakes are high. Everything runs privately in your browser, so the figures you enter — your savings, your income, your goals — never leave your device. Choose a tool below to begin.