Formula used
Uses an amount-weighted average holding period, then annualises the total portfolio gain as a closed-form CAGR approximation. It is not an iterative date-accurate XIRR solve.
Example calculation
Rs 1 lakh held five years, Rs 1.5 lakh held three years and Rs 2.5 lakh held one year have an amount-weighted holding period of 2.4 years.
XIRR answers a return-measurement question
A SIP calculator projects a future corpus from a planned contribution stream. This page works in the opposite direction: given investments made at different times and a current value, it estimates an annualised portfolio return using the approximation described in the methodology.
Source and methodology
Last reviewed: August 2026
This calculator uses the formula and assumptions described on this page. Uses an amount-weighted average holding period, then annualises the total portfolio gain as a closed-form CAGR approximation. Values are calculated in-browser from user-entered inputs and are not saved by default. Verify tax, regulatory, lender, scheme or product rules with the relevant official source where applicable.
Educational estimate only. RupeeKit does not provide personalized financial, investment, legal, tax or loan advice.
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You can cross-check this estimate using: salary in-hand calculator, Old vs New Tax Regime Calculator, 80C deduction calculator, EMI calculator, ITR-2 filing guide, emergency fund guide.
When this tool is useful
- When you want a fast estimate before making a financial or salary decision.
- When you want to compare different assumptions in seconds.
- When you want to understand the formula behind the result.
