ROI Calculator
Free online ROI calculator — calculate Return on Investment percentage, total profit and investment performance instantly. Enter your initial investment and final value to see ROI %, profit or loss with currency support (₹, $, €, £).
Results update instantly as you type.
What is ROI?
ROI, or Return on Investment, is one of the most widely used measures of how profitable an investment is. It expresses the gain (or loss) you made relative to the amount of money you originally put in, as a single easy-to-compare percentage. Because ROI is a ratio rather than a raw dollar amount, it lets you compare very different investments on a level playing field — a stock trade, a real-estate purchase, a marketing campaign or a small business decision can all be measured with the same number. A positive ROI means your investment grew in value, while a negative ROI means you ended up with less than you started. Our free ROI calculator instantly works out your profit and ROI percentage so you can judge investment performance at a glance.
ROI Formula
The ROI calculation is built on two simple formulas:
- Profit = Final Value − Initial Investment
- ROI (%) = ((Final Value − Initial Investment) ÷ Initial Investment) × 100
The final value is the total amount you receive when you exit the investment, and the initial investment is the money you originally committed. Dividing your profit by the initial investment and multiplying by 100 turns the result into a percentage that is easy to read and compare.
How to Calculate ROI
Calculating ROI takes just three steps. First, find your profit by subtracting the initial investment from the final value. Second, divide that profit by the initial investment. Third, multiply by 100 to express it as a percentage. For example, if you invest ₹10,000 and it grows to ₹13,000, your profit is ₹3,000. Dividing ₹3,000 by ₹10,000 gives 0.3, and multiplying by 100 gives a 30% ROI. With this calculator you simply enter your initial investment and final value, and the profit, ROI percentage and profit-or-loss status are calculated automatically.
Examples of ROI Calculation
- Invest ₹50,000 and sell for ₹65,000 → Profit ₹15,000, ROI = (15,000 ÷ 50,000) × 100 = 30%.
- Buy shares for $2,000 and sell for $1,700 → Loss $300, ROI = (−300 ÷ 2,000) × 100 = −15%.
- Spend €1,000 on a campaign that returns €1,250 → Profit €250, ROI = 25%.
- Invest £5,000 in a fund that grows to £8,000 → Profit £3,000, ROI = 60%.
Benefits of ROI Analysis
ROI analysis helps you make smarter financial decisions. Because it standardises performance into a single percentage, you can rank competing opportunities and put your money where it works hardest. It highlights underperforming investments early, so you can cut losses before they grow. Businesses use ROI to justify spending on equipment, marketing and hiring, while individual investors use it to compare stocks, mutual funds, real estate and side projects. ROI is simple to communicate to stakeholders, easy to track over time, and works in any currency — making it an essential tool for anyone who wants to invest with confidence. Remember that basic ROI does not account for how long an investment was held, so for multi-year investments it is also worth considering annualised returns.
Frequently asked questions
What is ROI and how is it calculated?
ROI (Return on Investment) measures the profitability of an investment as a percentage of the amount invested. It is calculated as ROI (%) = ((Final Value − Initial Investment) ÷ Initial Investment) × 100. For example, investing ₹10,000 that grows to ₹13,000 gives a profit of ₹3,000 and an ROI of 30%.
What is a good ROI?
A 'good' ROI depends on the type of investment and the risk involved. For the stock market, an average annual return of around 7–10% is often considered solid over the long term. Higher-risk investments may target higher ROI, while safe assets like fixed deposits offer lower but more reliable returns. Always compare ROI against the risk and time period of the investment.
Can ROI be negative?
Yes. A negative ROI means the final value of your investment is lower than the initial amount you invested — in other words, you made a loss. For example, investing $2,000 and ending with $1,700 produces a profit of −$300 and an ROI of −15%. Our calculator clearly shows a loss status with a color indicator when ROI is negative.
What is the difference between ROI and profit?
Profit is the raw amount of money you gained or lost (Final Value − Initial Investment), shown in your currency. ROI expresses that profit as a percentage of your initial investment, which makes it easy to compare investments of different sizes. A small investment can have a high ROI even if its absolute profit is modest.
Does ROI account for time?
Basic ROI does not consider how long you held an investment, so a 30% ROI over one year is very different from 30% over five years. For long-term comparisons, investors often calculate annualised ROI (CAGR) to factor in the holding period. This calculator gives you the simple, total ROI for quick comparisons.
Is this ROI calculator free?
Yes. The Uni Calculator Hub ROI Calculator is completely free, requires no sign-up, works in any browser, and is fully mobile responsive with support for ₹, $, € and £ currencies.
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ROI is calculated on your initial investment. Estimates only — verify figures before making financial decisions.