Return on Investment Calculator
Calculate the return on investment for any purchase, project, or investment — ROI %, net profit, and annualized return.
Investment Details
Enter your initial cost and final value to calculate ROI.
About the Return on Investment Calculator
Return on investment is the universal language of financial performance — a single percentage that tells you how much you got back relative to what you put in, regardless of whether you are evaluating a stock purchase, a real estate deal, a marketing campaign, or a business project. This calculator produces that number instantly from any cost and return value.
The formula is elegantly simple — net gain divided by initial cost — but its simplicity is also a limitation. Raw ROI ignores time: a 50% gain over 3 years looks the same as a 50% gain over 10 years, even though they are very different outcomes. That is why this calculator also shows the annualized return (CAGR) when you provide the holding period, converting any multi-year return into a per-year rate that allows fair comparison.
That annualized figure is what turns ROI from a scorecard into a decision tool. A 60% total return over 3 years (17% annualized) is more attractive than a 60% return over 7 years (7% annualized) — and comparing them to the S&P 500's historical 10% annualized return puts both in perspective.
Looking for more options? Open the full ROI Calculator — it’s the same tool with every feature.
Frequently Asked Questions
What is a good return on investment?
It depends on the investment type and risk. The US stock market has historically returned about 10% nominal (7% real) annualized over the long run. Real estate often targets 8–12% annualized including appreciation and rental income. Fixed income (bonds, CDs) currently yields 4–6%. A good ROI is one that adequately compensates for the risk taken — higher expected returns require accepting higher volatility or loss risk.
How do I calculate ROI for a rental property?
For rental real estate, include all income (rent, less vacancy allowance) and all costs (mortgage, taxes, insurance, maintenance, management) to get net annual income. Divide by total capital invested (down payment, closing costs, initial repairs). This gives cash-on-cash return. Adding expected annual appreciation to net income and dividing by total property value gives total return.
Why is annualized ROI (CAGR) more useful than simple ROI?
Simple ROI tells you total gain; CAGR tells you the per-year rate, accounting for compounding. This lets you compare investments held for different durations on equal terms. A venture investment that returned 300% over 8 years has a 19% CAGR — below the return of a fund that returned 120% over 3 years (30% CAGR). Simple ROI comparison would mislead you; CAGR does not.
Understanding Return on Investment
ROI as a decision framework
ROI is most powerful as a framework for prioritization: given multiple competing uses of capital, which generates the most return per dollar invested? This applies to individuals (should I pay down debt at 8% or invest expecting 10%?), businesses (should we invest in product A or marketing B?), and real estate investors (which property offers the best return per dollar). Reducing everything to a comparable rate cuts through the complexity of different asset types and deal sizes.
What ROI does not capture
Simple ROI ignores risk, liquidity, and inflation. A 10% return on a money-market fund and a 10% return on a startup are not equivalent — the startup carries much higher risk of total loss. A locked-in 3-year investment returning 10% may underperform an accessible one returning 8% once you factor in liquidity. Always use ROI alongside risk assessment and holding-period considerations, not in isolation.
Improving ROI in a business context
Business leaders use ROI to evaluate capital allocation: higher ROI projects get funded first. Improving ROI means either increasing returns from the same investment (better execution, pricing, or efficiency) or reducing the investment needed to achieve the same return (lean operations, avoiding waste). The discipline of requiring explicit ROI justification for spending decisions is one of the clearest differentiators between well-run and poorly-run organizations.