Tools / Finance
Money and finance tools
Work out cash runway, interest, loans and growth, with every formula shown.
FinanceRunway CalculatorHow many months your cash will last.
FinanceLate Payment InterestWhat you can charge on an overdue invoice.
FinanceCompound InterestGrowth with monthly additions and inflation.
FinanceLoan OverpaymentInterest and time saved by paying extra.
FinanceDoubling TimeHow long until money doubles at a given rate.
FinanceInflation CalculatorWhat an amount from the past is worth today.
ABOUT THESE TOOLS
Why these numbers matter
Many money questions come down to the same few calculations: how long cash will last, what interest really costs and how growth adds up over time. The math is simple once it is laid out, but easy to get wrong in a hurry.
These tools do the calculation and show how they did it. They are for illustration and planning, not financial advice, so use the results as a starting point for your own decisions or a conversation with your adviser.