Reading the result
What should you be careful about?
The assumptions and limitations behind ReturnLab calculations.
ReturnLab helps compare rates, durations, and recovery scenarios. It does not guarantee performance or replace investment judgment.
3 min read
Constant return assumption
The compound calculator assumes the same return repeats every day. Real markets mix gains, losses, and volatility.
Treat the output as a scenario simulation, not as a forecast.
Costs and taxes are separate
The default calculations do not include fees, taxes, exchange rates, slippage, or withdrawal limits.
Real performance should be adjusted for those costs.
Very large numbers may be approximate
Long durations and high returns can produce extremely large values. The UI and CSV may display approximations within available numerical precision.
The important signal is usually sensitivity to rate and duration, not the final digit of a huge number.