Adjacent Opportunities

What is XIRR vs IRR?

What is XIRR vs IRR: calculation method, required inputs, worked check, limitations and a link to XIRR Calculator. Reviewed 25 September 2026.

By Uddhav Gopani, FounderPublished 25 September 2026Reviewed 25 September 2026

For “What is XIRR vs IRR”, the linked XIRR Calculator is relevant because Free, browser-based XIRR Calculator.

What this specific question is asking

Most wrong answers here are setup errors, not math errors. Confirm dated cashflows (one per line: yyyy-mm-dd, amount) — units, periods and definitions — before you touch XIRR Calculator, and keep the output's unit attached when you use it.

Validate by perturbation: nudge dated cashflows (one per line: yyyy-mm-dd, amount) by ten percent and watch the output. A result that barely moves — or jumps wildly — usually means a wrong unit or period, not a broken formula.

Inputs to verify

Verify dated cashflows (one per line: yyyy-mm-dd, amount) before calculation; if this value uses a different unit, period or definition, convert or restate it first.

Step-by-step check

List each cashflow on its own line as a date and an amount.
Use negative amounts for money invested and positive amounts for money received.
Make sure there is at least one negative and one positive flow.
Tap Calculate to see the annualised XIRR for those dated cashflows.

Worked example and sanity check

As a worked reference for “What is XIRR vs IRR”, Worked example XIRR finds the annualised return when cash flows land on irregular dates — e.g. investing 100,000 and withdrawing 130,000 exactly 18 months later gives roughly 19.1% XIRR.

Interpreting the result

So what does the number mean? In the worked example the calculation produced XIRR vs IRR”, Worked example XIRR finds the annualised retur. A result in that range is plausible for this kind of input; if your result lands far from it, revisit dated cashflows (one per line: yyyy-mm-dd, amount) first — it is the input most often entered on the wrong basis. Read the magnitude before the decimals: a result ten times too large or small almost always means a unit or period slipped, not that the formula failed.

Reviewed 25 September 2026

Verify any current tax threshold, lender rate, provider rule or health guidance with the authoritative source before acting.

Use the XIRR Calculator

Open XIRR Calculator

Common questions

Which inputs matter most for what is xirr vs irr?

The key inputs are Dated cashflows (one per line: YYYY-MM-DD, amount). Match their units and periods before using XIRR Calculator.

How can I check an answer for what is xirr vs irr?

Run the example exactly as written, then vary dated cashflows (one per line: yyyy-mm-dd, amount) alone. A result that tracks that change predictably tells you the setup — units, periods, definitions — is correct.

When should I recalculate what is xirr vs irr?

Recalculate whenever any input's basis changes: a new measurement, a revised rate or threshold, a different period convention, or an updated policy figure.