Investing calculators
See how money grows over time — and what it is really worth after inflation, fees and the difference between nominal and effective returns.
What you can calculate
Investment projections are all variations on compounding: a starting balance, a regular contribution and a rate of return. The calculators here let you vary each factor separately so you can see which one matters most for your goal.
Treat every projection as a scenario, not a forecast. Constant-return models hide the volatility of real markets; they are useful for planning ranges and for comparing two decisions, not for predicting an exact balance.
Frequently asked questions
Are these calculators free?
Yes. Every calculator on this site is free, needs no account and runs entirely in your browser.
How accurate are the results?
Each page states its assumptions and shows a worked example. The formulas are standard industry formulas, but real-world results depend on fees, taxes and individual circumstances.
Do you store what I type?
No. The calculation runs in your browser and nothing is submitted to a server.
Other categories
Loans · Salary & Tax · Health · Dates & Time · Conversions