XIRR Calculator

What is an XIRR Calculator?

An XIRR (Extended Internal Rate of Return) Calculator is a financial tool that calculates the annualized rate of return for investments with multiple cash flows occurring at irregular intervals. Unlike simple return calculators, XIRR accounts for the exact timing of each investment and withdrawal, making it the most accurate method for measuring returns on SIPs, mutual funds, portfolios, and any investment where money enters or exits at different times.

How Does XIRR Work?

XIRR uses the Net Present Value (NPV) equation to find the discount rate that makes the sum of all discounted cash flows equal to zero. The formula is: NPV = sum of CFi / (1 + r)^((di - d0)/365) = 0, where CFi is each cash flow, di is the transaction date, d0 is the first date, and r is the XIRR being solved for. This equation is solved iteratively using the Newton-Raphson method, typically converging to an accurate result within 10-20 iterations.

How to Use This XIRR Calculator

Enter Cash Flows: Each row represents one transaction. Enter the date and amount for each.
Use Negative for Investments: Money going out (investments, purchases) should be entered as negative values.
Use Positive for Returns: Money coming in (withdrawals, current portfolio value) should be entered as positive values.
Add or Remove Rows: Use the Add Row button to include more transactions. You need at least two rows with one negative and one positive value.
View Results: The XIRR percentage, total invested, current value, and profit/loss are calculated instantly.

XIRR vs CAGR vs Absolute Return

Absolute Return simply measures the total gain or loss as a percentage of the initial investment, without considering time. CAGR (Compound Annual Growth Rate) assumes a single investment at the start and a single value at the end, making it suitable for lump sum investments. XIRR is the most comprehensive metric, as it accounts for multiple cash flows at irregular intervals, making it ideal for SIP investments, portfolios with additional purchases and withdrawals, and any real-world investment scenario.

Related Investment Calculators

For more investment analysis tools, explore the SIP Calculator for systematic investment planning, the CAGR Calculator for compound annual growth rate, the IRR Calculator for regular interval returns, the ROI Calculator for return on investment, and the Mutual Fund Calculator for fund-specific returns. Use the Step Up SIP Calculator for increasing investment plans or the Investment Calculator for general projections.

Frequently Asked Questions

What is XIRR and how is it different from IRR?

XIRR (Extended Internal Rate of Return) is similar to IRR but handles cash flows at irregular intervals using exact calendar dates. IRR assumes equal spacing between cash flows, while XIRR uses actual day differences, making it more accurate for real-world investments like SIPs where each installment has a different holding period.

Why do I need to enter negative values for investments?

In the XIRR calculation, money going out of your pocket (investments, purchases) is treated as negative cash flows, while money coming back to you (withdrawals, redemptions, current portfolio value) is treated as positive. This sign convention is essential for the mathematical equation to solve correctly.

Can I use this calculator for my mutual fund SIP?

Yes, this calculator is perfect for mutual fund SIPs. Enter each SIP installment as a negative cash flow on its date, and enter the current portfolio value or redemption amount as a positive cash flow on today's date. The XIRR will show your true annualized return accounting for each installment's holding period.

What does a negative XIRR mean?

A negative XIRR means your investment has generated a loss over the period. The absolute value represents the annualized rate of loss. This typically happens when the current portfolio value or total withdrawals are less than the total amount invested.

How accurate is the XIRR calculation?

This calculator uses the Newton-Raphson iterative method, the same algorithm used by Microsoft Excel and Google Sheets for their XIRR function. It converges to a result accurate to within 0.00001%, typically in 10-20 iterations, matching spreadsheet precision.

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