Sharpe ratio calculator

Return per unit of volatility.

Built and reviewed by Dovanic, Founder and editor, FreeByteLast reviewed: 2026-08-18

Portfolio return

Risk-free rate

Volatility

12%

Sharpe ratio

0.42

Excess return

5.0%

With these inputs, sharpe ratio comes to 0.42. Excess return works out to 5.0%. The result assumes portfolio return stays at 9%.

What moves the number · Sharpe ratio

Input	−10%	Now	+10%
Portfolio return	0.34	0.42	0.49
Risk-free rate	0.45	0.42	0.38
Volatility	0.46	0.42	0.38

Whatmakesequal

Save this set of inputs, change something, then save again to compare the outcomes side by side.

Return per unit of volatility.

With the defaults above, sharpe ratio works out at 0.42.