Steady, consistent investing wins over the long term
Real historical data, not projections. Pick a fund or build a portfolio, set your amount and dates, and see how it would actually have performed. Every calculator on this site is free to use.
97 real ETFs
Priced with real historical market data, not estimates.
100% free to use
Every calculator on the site is free to use, with no sign-up required.
Real month-by-month results
See how contributions and market growth combined over time.
ETF Calculator
Backtest a single ETF and see how one fund would have grown over time.
ETF Portfolio Calculator
Combine multiple ETFs with your own allocation and backtest the whole portfolio.
How it works
Pick a fund or a portfolio
Search by ticker or fund name, or combine several ETFs with your own allocation.
Set your amount and dates
Add a starting amount, an optional recurring contribution, and the time period to test.
See the real result
The tool replays your exact scenario against real historical monthly prices, month by month.
Not sure which fund to start with? Browse all 97 ETFs with real data behind them. Every result on this site is historical and educational, not financial advice, see our Disclaimer for the full detail.