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Sharpe Ratio Calculator
Result
Chart
Show formula & working
Sharpe = (Rp − Rf) ÷ σp
Details
Risk-free rate reference: 91-day Treasury Bill yield: rates and rules as of 28-Oct-2026 · Source: Reserve Bank of India — 91-day T-Bill cut-off yield at the last auction (RBI website, checked 31 Oct 2026). Every figure based on it stays editable.
How this works
The Sharpe ratio asks how much extra return a portfolio earned for each unit of volatility it carried.
Compare portfolios over the same period and with the same risk-free rate.
Frequently asked questions
Summary or series?
If you know the annual return and volatility (or beta), use summary figures. With monthly or yearly returns, the calculator works them out — annualised by the simple method (mean × periods a year, volatility × √periods).
What is a good Sharpe ratio?
Higher is better; the figure only means something compared with similar portfolios over the same period.