ROI Calculator

Three formulas do most of the work. Use the first to gauge total return, the second to know your raw dollar profit, and the third when you want a like-for-like comparison across different holding periods.

Simple ROI

ROI (%) = ((Final Value − Initial Investment) ÷ Initial Investment) × 100

Your total return as a percentage of what you originally put in. Positive means profit, negative means a loss. Doesn’t consider how long you held the investment.

Net Profit

Net Profit = Final Value − Initial Investment

The absolute dollar amount you gained or lost — your actual profit before taxes and fees.

Annualized ROI (CAGR)

Annualized ROI = ((Final Value ÷ Initial Investment)^(1 ÷ Years) − 1) × 100

Your equivalent yearly return, also called Compound Annual Growth Rate (CAGR). Use this when comparing investments held for different time periods or benchmarking against annual market returns.

ROI answers the one question every investor asks: how much did I gain compared to what I put in? It distills performance into a single percentage that’s easy to compare across very different bets — a rental property, an index fund, a startup stake, a marketing campaign.

Where ROI earns its keep:

• Performance check. Quantifies how well an investment did, not just “up” or “down.”
• Like-for-like comparison. A %-of-cost figure puts dissimilar investments on the same scale.
• Goal tracking. Gauges progress toward a target.
• Capital allocation. Helps decide where the next dollar should go.

Worked example. You invest $10,000 in a stock portfolio. After 3 years, it’s worth $15,000:

• Net profit: $15,000 − $10,000 = $5,000
• ROI: ($5,000 ÷ $10,000) × 100 = 50%

For every dollar invested, you earned 50 cents over the entire holding period.

The two numbers can look identical for short holding periods and dramatically different over long ones. Use the right one for the question you’re asking.

Simple ROI

Total gain or loss over the full holding period — no time adjustment. Best for:

• A single investment with a clear start and end
• Comparing things held for the same length of time
• Quick performance snapshots and marketing-campaign math

Annualized ROI (CAGR)

Total return converted to an equivalent yearly rate. Best for:

• Comparing investments held for different periods
• Benchmarking against market indices (which report annual returns)
• Retirement and long-horizon wealth planning

Same dollars in, very different verdicts:

B looks like the runaway winner on simple ROI — double the gain. But A actually outperformed on a per-year basis. That’s the whole reason CAGR exists.

Knowing the long-run averages for each asset class helps you sanity-check expectations and spot under- or over-performance. Figures below are historical averages as of 2026 — not guarantees.

Historical averages based on long-term market data. Past performance does not guarantee future results — higher expected returns usually mean higher volatility.

Using the table

• Evaluate fairly: 8% on stocks when the S&P returned 12% means you underperformed the market.
• Set realistic goals: 20% annual on a bond portfolio is not happening.
• Match risk to need: A steady 6% on bonds can beat a volatile 8% on stocks for a risk-averse investor.
• Compare like to like: Real estate ROI against real estate — not against stocks.

Marketing-campaign benchmarks

Business ROI runs on a different scale because cost-per-conversion is the denominator:

• Email: 3,600–4,200% (about $36–$42 back per $1)
• SEO: 500–1,000% (varies widely by industry and time horizon)
• Paid search (PPC): 200–400% ($2–$4 back per $1)
• Social ads: 100–300% (highly variable)
• Content marketing: 300–600% (compounds over time)

1. Ignoring time period

Comparing simple ROI across very different holding periods leads to wrong conclusions. “A returned 80%, B returned 40%, so A is twice as good” falls apart once you note that A took 10 years (≈6%/yr) while B took 3 (≈11.9%/yr). B was actually the stronger investment.

2. Forgetting all the costs

True net ROI accounts for everything that came out of your pocket along the way:

• Transaction costs — brokerage commissions, bid-ask spreads
• Management fees — fund expense ratios, advisory fees, performance fees
• Taxes — capital gains, dividends, income
• Carrying costs — margin interest, property taxes, maintenance
• Opportunity cost — what a risk-free alternative would have returned

3. Ignoring inflation

An 8% nominal return with 3% inflation is really about 5% in purchasing-power terms. A 4% return during 5% inflation is technically a loss in real dollars.

4. Cherry-picking time periods

Picking favorable start and end dates is the oldest trick in the fund-marketing book. Always look at multiple windows (1-year, 5-year, 10-year, rolling returns) before drawing conclusions.

5. Comparing apples to oranges

Bond returns vs. stock returns isn’t a fair fight — the risk profiles aren’t comparable. Compare a bond fund to other bond funds, real estate to real estate, and use risk-adjusted metrics like Sharpe ratio when crossing asset classes.

6. Forgetting reinvestment

Simple ROI assumes every dollar of return gets reinvested at the same rate. In practice, dividends might be spent or reinvested at different rates, and the timing of cash flows matters. When cash flows are uneven, use IRR or money-weighted returns instead.

ROI is great for quick comparisons. For more complex situations — multiple cash flows, big differences in investment size, or differences in risk — you’ll want a more specialized metric.

Internal Rate of Return (IRR)

IRR is the annualized rate at which the net present value of all cash flows equals zero. It’s the go-to metric for real estate, private equity, and any investment where money goes in and comes out on irregular schedules.

Net Present Value (NPV)

NPV discounts future cash flows back to today’s dollars at your required rate of return. Positive NPV means the investment beats your required return; negative means it doesn’t. NPV is the right tool when comparing investments of very different sizes — ROI is a percentage and can’t tell you absolute dollar value.

Sharpe Ratio

Return per unit of risk: (Return − Risk-Free Rate) ÷ Standard Deviation. A reading above 1 is good, above 2 is excellent, below 0 means you’d have been better off in Treasuries. Use it to compare investments with very different volatility levels.

Total Return vs. ROI

Total return covers everything an investment produces — capital appreciation plus income (dividends, interest, rent) plus reinvestment. ROI is just total return expressed as a percentage of cost. The common mistake is measuring only price appreciation and forgetting the income side.

Before you invest

1. Calculate target ROI. What return do you need to hit your goal?
2. Research historical returns. Look at 5- and 10-year averages for the asset class.
3. Estimate all costs. Fees, taxes, transaction costs — bake them in up front.
4. Match risk to horizon. Higher expected ROI usually means higher volatility.
5. Set the time horizon. When do you actually need the money back?

While you’re invested

1. Track ROI regularly. Quarterly or annually, not weekly.
2. Compare to relevant benchmarks. Don’t grade bonds against the S&P.
3. Rebalance when needed. Drift can amplify risk over time.
4. Document cash flows. Every contribution, withdrawal, and distribution.

After you sell

1. Calculate final ROI. Net of all costs and taxes.
2. Compare to alternatives. How did you do versus the next-best option?
3. Pull out the lessons. What drove the result — skill, luck, or market beta?
4. Apply them next time. ROI is a feedback loop, not a final score.