Average Return Calculator
Compare arithmetic and compound averages for equal-length periods. No deposits or withdrawals.
Results and explanation
Enter your inputs to get started.
Numbers are processed locally. Results use floating-point arithmetic and up to 10 significant digits. List fields accept commas, spaces or line breaks.
How to use this calculator
Enter percentage returns for equal-length periods. Compare the arithmetic mean with the compound average based on growth factors.
Worked example
Returns of +50% and −50% have an arithmetic mean of 0%, but a compound average of about −13.40%. Cash flows are excluded.
Check the units and assumptions before using your result. Explore related calculators or read our statistics guides.