ROI Calculator

Calculate Return on Investment

Compare the final value against your initial investment and optionally annualize the return.

Leave blank if you only need total ROI.

ROI summary

Return on investment Enter investment values Total gain or loss and annualized ROI will appear here.

Uses the values you enter only; taxes, fees, dividends, cash flows, and inflation are not added automatically.

Important Finance Disclaimer

This calculator is for estimates only and educational purposes. It does not constitute financial, investment, loan, tax, legal, accounting, or other professional advice. Always verify important decisions with a qualified professional and the relevant lender, advisor, tax authority, or service provider.

Inputs, units, and periods

  • Initial investment and final value are treated as dollar amounts.
  • ROI is calculated as total return relative to initial investment and displayed as a percent.
  • The investment period is optional; when provided in years, the page also estimates annualized ROI.
  • The result assumes the entered final value already reflects the outcome you want to compare.

Items not included

  • Taxes, transaction fees, management fees, financing costs, dividends, reinvestment timing, and inflation unless included in your inputs.
  • Risk, volatility, liquidity, opportunity cost, and suitability for your personal financial situation.
  • Investment, tax, legal, or accounting advice.

Actual outcomes can differ because of rounding, fees, taxes, insurance, compounding rules, APR disclosures, loan terms, market conditions, provider policies, and the exact timing of payments or cash flows.

What is ROI?

ROI (Return on Investment) is a performance measure used to evaluate the efficiency or profitability of an investment. It directly measures the amount of return on a particular investment, relative to the investment's cost.

ROI is expressed as a percentage and is commonly used to compare the efficiency of different investments. A higher ROI means more profitable investment relative to its cost.

How Return on Investment Is Calculated

Follow these detailed steps:

  1. Step 1: Calculate Net Return
    Subtract the initial investment cost from the final value. For a $10,000 investment sold for $13,500: Net Return = $3,500.
  2. Step 2: Divide by Investment Cost
    Divide net return by the original investment: $3,500 / $10,000 = 0.35. This decimal represents your proportional return.
  3. Step 3: Express as Percentage
    Multiply by 100: 0.35 x 100 = 35% ROI. This standardized format allows comparison across different investment sizes.

Formula

ROI = [(Final Value - Initial Investment) / Initial Investment] × 100%

Annualized ROI: ROI = [(Final Value / Initial Investment)^(1/n) - 1] × 100%

Where: n = number of years

Example

Investment Example

Problem: You invested $10,000 in stocks and sold them 3 years later for $14,500. What is your ROI?

Solution:

  1. Initial Investment: $10,000
  2. Final Value: $14,500
  3. Gain: $14,500 - $10,000 = $4,500
  4. ROI = ($4,500 / $10,000) × 100% = 45%
  5. Annualized ROI = [(14,500/10,000)^(1/3) - 1] × 100% = 13.2% per year

Quick Calculation Tips

  • Consider the time period - a 50% ROI in 1 year is better than 50% in 5 years
  • Factor in all costs including fees, taxes, and opportunity costs
  • Compare ROI to your minimum acceptable return (hurdle rate)
  • Positive ROI doesn't always mean 'good' - consider risk and alternatives

Common Mistakes to Avoid

  • Ignoring time value
    ROI doesn't account for time. A 20% return in 1 month vs 10 years have very different implications.
  • Excluding hidden costs
    Transaction fees, taxes, and maintenance costs all reduce actual ROI.

Frequently Asked Questions

What is a good ROI?

A "good" ROI depends on the investment type and risk level. Stock market investments typically aim for 7-10% annual returns, real estate may target 8-12% annually, while safer investments like bonds might yield 3-5%. Compare ROI to benchmarks in the same asset class.

What's the difference between ROI and annualized ROI?

ROI shows the total return over the entire investment period, while annualized ROI converts that return to an average yearly rate. Annualized ROI is useful for comparing investments with different time periods.

What are the limitations of ROI?

ROI doesn't account for the time value of money, risk levels, or ongoing costs. It also doesn't consider how long the money was invested. A 50% ROI over 10 years is different from 50% over 1 year. Use ROI alongside other metrics for complete analysis.

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