IRR Calculator

Calculate internal rate of return from initial investment and yearly cash flows.
$
$

IRR

19.71%

NPV at Different Rates

At 5%$49,421.50
At 8%$36,679.88
At 10%$29,078.68
At 12%$22,104.49
At 15%$12,679.59

Use the IRR Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.

How It Works

This IRR Calculator helps you determine the internal rate of return for an investment, considering its initial cost and subsequent cash flows. Understanding your IRR is crucial for evaluating investment profitability, especially when comparing different opportunities available in the dynamic 2026 market. With global inflation projected at 3.5% and a strong focus on sustainable investments, a robust IRR calculation provides a clear picture of your potential gains adjusted for time value of money.

The Internal Rate of Return (IRR) is the discount rate that makes the Net Present Value (NPV) of all cash flows from a particular project equal to zero. It is derived by solving the equation: Initial Investment = Σ (Cash Flowt / (1 + IRR)t), where 't' represents the period. This calculator iteratively approximates the IRR until the NPV converges to zero, providing a precise measure of an investment's annual growth rate.

A common mistake is confusing IRR with simple return on investment; IRR accounts for the timing of cash flows, making it a more accurate metric for long-term projects. Be mindful of potential reinvestment rate assumptions inherent in IRR calculations, as they can sometimes overstate returns in scenarios with fluctuating market conditions. Always consider the scale of projects, as a high IRR on a small investment might not be as impactful as a moderate IRR on a large one.

Example: Investing in a 2026 AI-driven agricultural startup

  1. 1 Initial Investment: $100,000 (made in 2026). Yearly Cash Flows: Year 1 (2027): $20,000, Year 2 (2028): $30,000, Year 3 (2029): $40,000, Year 4 (2030): $50,000.
  2. 2 The calculator will take the initial outflow of $100,000 and the subsequent inflows of $20,000, $30,000, $40,000, and $50,000. It will then iteratively determine the discount rate (IRR) that makes the net present value of these cash flows equal to zero.
  3. 3 The calculated Internal Rate of Return (IRR) for this investment is approximately 18.92%.
  4. 4 An IRR of 18.92% indicates a strong potential return, especially when compared to the average S&P 500 historical return of around 10-12%. This suggests the AI agricultural startup could be a highly profitable venture, outperforming many traditional investment options in the current market climate.

Source: SEC · Last updated: April 2026

Frequently Asked Questions

What is a good IRR for an investment?
A good IRR depends on the risk level. Low-risk investments target 5-10%. Moderate-risk real estate targets 10-15%. Venture capital targets 20-30%+. The IRR should exceed your cost of capital or hurdle rate to be worthwhile.
How is IRR different from ROI?
ROI is a simple total return percentage that ignores timing. IRR accounts for when cash flows occur, giving an annualized return rate. A project with a 50% total ROI over 5 years has roughly a 9% IRR. IRR is more useful for comparing investments with different time horizons.
What are the limitations of IRR?
IRR assumes reinvestment of cash flows at the same rate, which may be unrealistic. It can produce multiple values for projects with alternating positive and negative cash flows. For comparing mutually exclusive projects, NPV is more reliable than IRR.

You might also need

Compound Interest Calculator — See Your Money Grow Over Time

Calculate compound interest with regular contributions and see how your money grows with daily, monthly, or annual compounding. Free, instant results and charts.

Inflation Calculator

Calculate the impact of inflation on purchasing power over time. See how much past dollars are worth today.

Net Worth Calculator

Calculate your net worth by adding up assets (savings, investments, property) and subtracting liabilities (loans, credit cards).