ROI Calculator

About ROI Calculator

Return on investment compares what you gained with what you spent. Enter the amount invested, final value and years held, and this calculator shows profit or loss, total ROI and annualized return. It is useful for equipment purchases, marketing spend, courses and other decisions. It is for education only and does not predict future results.

Example

Input: invested $10,000, final value $13,500 over 3 years. Output: profit $3,500, total ROI 35% and an annualized return of about 10.5%.

Tips for better results

• Include all costs, such as fees and taxes, for a fair result.
• Compare options using annualized return.
• Past performance does not guarantee future results.

When to use ROI Calculator

Use this calculator when you want a simple, comparable number for how well a purchase or project paid off. Small business owners, marketers, students and individual investors can enter the amount spent, the final value and the time held to see profit, total ROI and annualized return. It is a quick way to compare options, but real decisions need more context such as risk, cash needs and fees. Results are for education only.

Real-world uses

• A business owner compares what she spent on a new espresso machine with the extra coffee revenue it produced over two years.
• A marketer measures the return on a quarter's ad spend by entering the cost and the sales it brought in.
• A hobbyist checks how a used camera purchase and later resale compare, including the years held.
• A student compares two course options by entering the tuition and the added income each might produce.

Common mistakes to avoid

• Leaving out fees, taxes or ongoing costs makes the return look better than it was, so include every expense tied to the investment.
• Comparing a one-year result with a five-year result using total ROI misleads, so look at annualized return when time periods differ.
• Treating a past result as a promise ignores risk, so use the number to review a decision, not to predict what will happen next.

Calculate return on investment and annualized return. It works instantly in your browser, so there is nothing to install and nothing to upload. ROI Calculator is part of our collection of 100 free tools in the Small Business category.

How to use it

1. Enter your information or choose a file in the tool above.
2. Your result appears right below the tool.
3. Copy the result, or adjust your input and try again.

Frequently asked questions

What is the difference between ROI and annualized return?

ROI shows the total gain or loss as a share of what you put in. Annualized return spreads it over the years held, so you can compare investments held for different lengths of time.

Can ROI be negative?

Yes. If the final value is lower than what you invested, the result shows a loss as a negative percentage, which is a useful signal when reviewing a spending decision.

Is ROI Calculator free to use?

Yes. ROI Calculator is completely free and you do not need to create an account.

Is my data uploaded anywhere?

No. This tool runs in your browser, so what you type or choose stays on your device.

How accurate are the results?

Calculations use standard formulas, but always double-check important figures, especially for money, health or legal decisions.