XIRR Calculator
Calculate the annualized return on a series of investments with a known maturity value.
How this works
XIRR finds the single annualized rate r that makes the net present value of every cash flow — each investment as an outflow, the maturity amount as an inflow — equal to zero: Σ CFi ÷ (1+r)daysi/365 = 0. Unlike CAGR, it correctly accounts for irregular timing and multiple contributions, which is why it's the standard metric for SIP and staggered investment returns. This calculator solves for r numerically (bisection method) rather than a closed-form formula, since none exists for more than two cash flows.
Frequently asked questions
How is XIRR different from the SIP calculator's assumed return?
The SIP Calculator asks you to assume a return rate and projects forward. XIRR works backward — you tell it what actually happened (investment dates, amounts, and final value), and it calculates the annualized return you actually earned.
Does the last investment happen on the maturity date?
No — this tool generates investment dates starting from your start date at the chosen frequency, stopping before the maturity date, and treats the maturity date as when you receive the final payout only.