ROI (Return on Investment) Calculator

Initial Investment (£) Final Value (£)

ROI Calculator – Free Online Tool

Wondering how much profit or loss your investment made?
Our ROI (Return on Investment) Calculator helps you find out in seconds. Simply enter the initial investment and the final value — the calculator will show your ROI in percentage and the profit or loss.

This tool is fast, lightweight, and mobile-friendly, designed for investors, business owners, and anyone who wants to measure performance.

How to Use the ROI Calculator

Enter the Initial Investment (£) – the amount you originally invested.
Enter the Final Value (£) – how much your investment is worth now.
Click Calculate.
Instantly see:
- ROI (%) → your return rate.
- Profit/Loss (£) → money gained or lost.

Why Use This ROI Calculator?

Quick & Accurate – get instant results.
Profit & Loss Breakdown – see percentage + money value.
No Downloads Needed – works directly in your browser.
Mobile-Friendly – use it on your phone, tablet, or desktop.

Formula Used

The ROI Calculator uses the standard formula:

$\frac{\text{Final Value – Initial Investment}}{\text{Initial Investment}} \times 100$

Example:

Initial = £1,000
Final = £1,200
ROI = (1200 – 1000) ÷ 1000 × 100 = 20% Profit

Frequently Asked Questions (FAQ)

Q: What is ROI?
ROI stands for Return on Investment. It measures how much profit or loss an investment has generated compared to its initial cost.

Q: How is ROI different from CAGR?
ROI shows total return as a percentage, while CAGR (Compound Annual Growth Rate) shows average yearly growth.

Q: Can ROI be negative?
Yes. If your final value is less than your initial investment, ROI will be negative — meaning a loss.

Q: Why is ROI important?
ROI helps you quickly evaluate the performance of an investment, whether it’s stocks, real estate, business, or marketing campaigns.

Q: Does this calculator consider inflation?
No. This ROI calculator shows nominal returns. For inflation-adjusted returns, you need a real return calculator.