AtlasCalcsUtility Calculation Suite
2026-09-23 6 min read

XIRR Calculator

Annualized return across exact dates.

Calculator

Initial Investment
$
Future Value
$
Days Between Flows

Results

Optimal

XIRR (annualized)

0.00%

Days

730

Live results update as you type — currently showing xirr (annualized) of 0.00%. Replace the defaults with your own numbers.

Visualizations

XIRR

100,000$Outflow
100,000$Inflow

Formula

Date-aware annualized return.

XIRR = (FV/PV)^(365/days) − 1

Variables

SymbolNameUnitDescription
daysDaysBetween flows

Explanation

Irregular-timing yield.

Step-by-Step Calculation

Follow each step to understand how the result is calculated from your inputs.

Step 1

XIRR = (FV/PV)^(365/days) − 1

Result: 0.00%
Final Answer
0.00%

Worked Examples

See how the calculator works with different scenarios.

Scenario

The xirr calculator run on the values above.

Inputs

initialCost:100000
futureValue:100000
days:730

Calculation

1. XIRR = (FV/PV)^(365/days) − 1 → 0.00%

Result

XIRR (annualized): 0.00%

Interpretation

0.00% annualized over 730 days.

Understanding Your Result

Your Result: XIRR (annualized): 0.00%

What This Means

Irregular-timing yield.

Why It Matters

0.00% annualized over 730 days.

Professional Interpretation

0.00% annualized over 730 days.

How this is calculated

Date-aware annualized return.

What drives the result

Compounding grows lump sums and streams forward; discounting shrinks them back. The rate is the exchange rate between today and tomorrow.

Recommendations

  • •True XIRR uses every dated flow — this two-point form annualizes start-to-end.
  • •For schedules, discount each flow by its exact date.

Educational Content

Introduction

Money has a time price: a dollar today compounds forward and discounts backward. Annuities package that into streams, NPV/IRR judge projects, and DCF prices whole firms.

Concept Explanation

Compounding grows lump sums and streams forward; discounting shrinks them back. The rate is the exchange rate between today and tomorrow.

Applications

▸Saving and loan decisions
▸Project screening with NPV/IRR
▸Firm valuation with DCF

Benefits

  • •Comparable across timing
  • •Rate-explicit decisions
  • •Value linked to cash, not accounting

Limitations

  • •Constant-rate simplifications
  • •Even-flow shortcuts where noted
  • •Forecasts dominate DCF truth

Best Practices

  • •Match rate frequency to cash frequency
  • •Show ranges for DCF/IRR
  • •Annualize before comparing

Common Misconceptions

Myth: Nominal equals effective
Truth: Compounding gaps them — use EAR.
Myth: IRR alone decides
Truth: Scale and timing need NPV beside it.

Practical Tips

  • •Discount each flow by date.

Common Mistakes

Day-count errors
Use actual/365.

Assumptions

This calculator makes the following assumptions to provide estimates:

Two-point form: Start-to-end.

Limitations

Be aware of these limitations when using this calculator:

Limitation: Constant-rate simplifications
Limitation: Even-flow shortcuts where noted
Limitation: Forecasts dominate DCF truth

Frequently Asked Questions

Answers to common questions about this calculator.

Vs IRR?
XIRR uses exact dates.
How accurate is the xirr calculator?
It follows the stated TVM formula from your inputs. Match rate frequency to cash frequency for exact results.
Ordinary vs due?
Ordinary pays at period-end; due pays at start and is worth (1+r) more.
Nominal vs effective?
Nominal ignores compounding; effective (EAR) includes it — compare EAR.

Related Guides

Deepen your understanding with these educational resources.

Glossary

Technical terms used in mortgage calculations explained in plain language.

IRR
Discount rate that makes NPV zero.

Authoritative References

Trusted sources and standards referenced by this calculator.

Applicable Standards

End-of-period (ordinary) timing unless labeled dueMoney rounded for display only; math at full precisionEven annual flows where labeled; uneven timing needs period detail

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Page Information

Last Updated:

2026-09-23

Version:

2.0.0

License:

Free to use for educational and professional purposes.