CalmCalc
FINANCE

IRR Calculator

Estimate irr based on fixed cash flow from initial investment, holding years, ending balance with the IRR Calculator.

Choose an IRR modelUse a fixed recurring cash flow or an irregular annual series.
2 options
IRR BASED ON FIXED CASH FLOW18.76%

Cash-flow observations: 6; solved NPV rate: 18.7609%.

Estimate based on the values shown
MethodSolves the discount rate that makes net present value zero for fixed or irregular cash flows.

Before you use the result

Planning estimate only. Rates, fees, taxes, eligibility rules, timing, and provider terms can change the result.

Sources

CALCULATOR GUIDE

How to use the IRR Calculator

Estimate irr based on fixed cash flow from initial investment, holding years, ending balance with the IRR Calculator. It includes IRR based on fixed cash flow, IRR based on irregular cash flow workflows, so choose the one that matches the values you actually know. Use it as a planning baseline, then compare the estimate with current rates, fees, taxes, and provider terms.

Step by step

  1. For the IRR, enter initial investment, holding years, ending balance, cash flow timing, deposit withdraw. Keep each value in the unit displayed beside its field.
  2. Review the selected IRR workflow and inputs, then read irr based on fixed cash flow in the result panel.
  3. Change one IRR assumption at a time to compare scenarios. Use Reset to restore this tool's worked example values.

How the calculation works

Solves the discount rate that makes net present value zero for fixed or irregular cash flows.

Worked example

In the IRR worked example, initial investment $10,000, holding years 5 years, ending balance $15,000, cash flow timing Beginning produces irr based on fixed cash flow of 18.76%. Cash-flow observations: 6. Review the displayed units before comparing the result.

Understanding the result

The IRR reports irr based on fixed cash flow. Use it as a planning baseline, then compare the estimate with current rates, fees, taxes, and provider terms. Planning estimate only. Rates, fees, taxes, eligibility rules, timing, and provider terms can change the result.

How to check the answer

Check the IRR result by entering the same initial investment, holding years, ending balance in an independent statement, lender, provider, or official tool. Change one input and confirm that irr based on fixed cash flow moves in the direction implied by Solves the discount rate that makes net present value zero for fixed or irregular cash flows.

Common questions

What does the IRR calculate?

Estimate irr based on fixed cash flow from initial investment, holding years, ending balance with the IRR Calculator.

Which IRR inputs have the biggest effect?

irr based on fixed cash flow responds directly to initial investment, holding years, ending balance, cash flow timing, deposit withdraw. Change one input while holding the others constant to see its effect.

Is the IRR result exact?

Planning estimate only. Rates, fees, taxes, eligibility rules, timing, and provider terms can change the result. Recheck initial investment, holding years, ending balance and use irr based on fixed cash flow only for a decision where that level of precision is appropriate.

Formula tests, limits, sources, and guide registry updated September 1, 2026.
INTERPRET THE RESULTRead the finance guideCheck assumptions, limitations and comparison methods →