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Calculate your return on investment (ROI) as a percentage. See total gain/loss, annualized returns, and investment multiplier for any time period.
ROI is a financial metric that measures the percentage gain or loss on an investment relative to its cost. It is calculated as (Final Value − Initial Investment) ÷ Initial Investment × 100.
| Initial Investment | $10,000.00 |
| Final Value | $12,500.00 |
| Investment Period | 1 year |
| Multiplier | 1.25x |
Formula
ROI = (Final Value − Initial Investment) ÷ Initial Investment × 100Final Value = current or ending value of the investment
Initial Investment = the total amount originally invested (cost basis)
ROI = percentage return — positive is profit, negative is loss
Worked Example
$10,000 invested → $13,500 after 3 years
Did you know? Warren Buffett's Berkshire Hathaway has compounded at ~20% annual ROI since 1965 — turning $1,000 into over $35 million. At the S&P 500's historical ~10% annual return, money doubles roughly every 7.2 years (the 'Rule of 72').
Sources
Measures percentage gain or loss relative to initial investment.
Standardizes returns to a yearly basis for comparison.
Shows how many times your investment grew.
You invest $10,000 in stocks. After 3 years, your portfolio is worth $15,000.
| Total Gain | $15,000 − $10,000 = $5,000 |
| Total ROI | ($5,000 ÷ $10,000) × 100 = 50% |
| Annualized ROI | ((1.5)^(1/3) − 1) × 100 ≈ 14.47% |
| Investment Type | Annual ROI |
|---|---|
| Savings Account | 1-5% |
| Bonds | 4-6% |
| Stock Market (S&P 500) | 7-10% |
| Real Estate | 8-12% |
| Venture Capital | 15-25%+ |
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