ROI Calculator – Calculate Return on Investment Instantly

Investment Details

Initial Investment

Final Value

Time Period (years) — optional, for annualized return

yrs

Results

Enter your figures and hit Calculate ROI

What is ROI?

Return on Investment (ROI) is a percentage that tells you how much profit or loss you made relative to what you originally invested. It is one of the most widely used metrics in finance and business because it puts every investment on the same level playing field — whether you spent $500 on a marketing campaign or $500,000 on a property, ROI lets you compare them fairly.

A positive ROI means you made money. A negative ROI means you lost money. An ROI of 50%, for example, means that for every dollar you put in, you got $1.50 back — earning 50 cents of profit on top of your original dollar.

ROI is used everywhere: stock and fund investing, real estate, business projects, marketing campaigns, and even personal decisions like education or career moves. Its simplicity is its biggest strength — a single number that instantly communicates whether an investment paid off.

ROI Formula Explained

This calculator uses three formulas — one for each output metric:

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

Profit / Loss Profit = Final Value − Initial Investment

Annualized Return (CAGR) CAGR = Final Value Initial Investment ^1/n − 1

Final Value — the total amount your investment is worth at the end of the period.
Initial Investment — the original amount of money you put in.
n — number of years the investment was held.
CAGR — Compound Annual Growth Rate: the steady annual rate that would take you from start to finish in n years.

CAGR is especially useful because it smooths out year-to-year volatility, giving you a single clean number to represent average annual performance. It is the standard used by fund managers, analysts, and investors when comparing investments over different time horizons.

Example ROI Calculations

To make the formulas concrete, here are four realistic investment scenarios. Each one uses a different starting amount, final value, and time horizon — and shows how ROI and annualized return can tell very different stories about the same profit.

Scenario	Invested	Final Value	Profit	ROI	CAGR
S&P 500 index fund (10 yr)	$10,000	$19,672	+$9,672	96.7%	7.0% / yr
Real estate purchase (5 yr)	$50,000	$78,000	+$28,000	56.0%	9.3% / yr
Marketing campaign (1 yr)	$5,000	$14,250	+$9,250	185.0%	185.0% / yr
Failed startup (3 yr)	$20,000	$6,000	−$14,000	−70.0%	−32.5% / yr

Notice how the marketing campaign has the highest ROI (185%) even though its absolute profit is smaller than the real estate example. This is because ROI is a relative measure. CAGR adds important context when different time periods are involved — the 10-year index fund's 7% per year tells a very different story than the 185% single-year campaign return.

Figures are illustrative examples only and do not represent actual investment returns. Past performance is not a guarantee of future results.

Frequently Asked Questions

What is a good ROI?

A "good" ROI depends entirely on the type of investment and the time involved. For long-term stock market investing, a 7–10% annualized return is generally considered solid. For a short-term business project or marketing campaign, many professionals look for an ROI of at least 100–200% to justify the risk and resources. Real estate often targets 8–12% annually including rental income. There is no universal benchmark — the right question is whether your ROI exceeds the opportunity cost of putting that money somewhere else, such as a savings account or index fund.

What is the difference between ROI and CAGR?

ROI measures total return as a percentage, regardless of how long the investment took. CAGR (Compound Annual Growth Rate) expresses that return as a consistent annual rate, accounting for the time period. For example, a 100% ROI over 10 years sounds impressive, but that works out to just 7.2% per year — modest by most standards. CAGR is the better tool for comparing investments held for different lengths of time, while ROI is more useful for quick, at-a-glance profitability checks.

Can ROI be negative?

Yes. A negative ROI simply means your final value is less than what you originally invested — you lost money. For example, if you invested $10,000 and it is now worth $7,000, your ROI is −30%. Negative ROI is common in higher-risk investments like startups, volatile stocks, or business ventures that did not work out. Calculating ROI on failed investments is still useful because it quantifies the loss clearly and helps inform better decisions in the future.

Does ROI account for inflation?

Standard ROI does not account for inflation. It is a nominal figure — it measures raw dollar growth, not purchasing power. To find your real (inflation-adjusted) ROI, subtract the average annual inflation rate from your annualized return. For instance, if your CAGR is 7% and inflation averaged 3%, your real return is roughly 4% per year. For long-term investments spanning 10 or more years, accounting for inflation gives you a much more accurate picture of how much wealthier you actually became.

How is ROI different from profit?

Profit is an absolute dollar figure — it tells you how much money you made in total. ROI is a relative percentage — it tells you how much you made compared to what you put in. A $10,000 profit sounds great, but if you invested $1,000,000 to get it, the ROI is only 1%, which is quite poor. On the other hand, a $500 profit on a $200 investment is an ROI of 150%, which is excellent. Both metrics matter: profit tells you the scale of your gain, while ROI tells you the efficiency of your capital.