Is the ROI Calculator free?

Yes — the ROI Calculator is completely free, with no account, subscription, signup, or usage limits.

Is my data uploaded or stored?

No. The ROI Calculator processes everything locally in your browser. Your input is never uploaded, saved, or shared with any server.

Does the ROI Calculator work offline?

Yes. Once the page has finished loading, the ROI Calculator works without an internet connection.

Which browsers does the ROI Calculator work in?

The ROI Calculator works in all modern browsers, including Chrome, Firefox, Safari, and Edge — no plugins or extensions needed.

It depends on the asset class and risk level. For stocks, a long-term average of 8–12% per year is considered reasonable. Real estate returns vary widely by location. Business investments often target 20%+ to justify the risk. Always compare ROI against the opportunity cost — what you'd earn on a safer alternative.

What is the difference between ROI and annualised ROI?

Simple ROI is the total return regardless of how long the investment was held. Annualised ROI (also called CAGR — Compound Annual Growth Rate) expresses that return as a yearly equivalent, making investments of different durations comparable. A 45% ROI over 2 years is roughly equivalent to a 20.3% annual return.

ROI Calculator

Calculate return on investment and compare the profitability of investments.

Initial Investment

₦

Final Value / Return

₦

Time Period (optional)

Free browser-based tool · Runs 100% on your device · Last updated July 7, 2026

What is the ROI Calculator?

The free ROI Calculator measures the return on any investment — enter your Initial Investment, the Final Value or Return, and an optional Time Period, and instantly see your net profit or loss (₦), ROI percentage, and annualised ROI. Whether you're evaluating a stock portfolio, a business expansion, real estate, or a marketing campaign, this tool gives you the numbers you need in seconds.

→ Evaluate whether an investment generated a positive or negative return
→ Compare the ROI of different investment options before committing capital
→ Calculate the annualised return on a multi-year investment or business venture
→ Measure marketing campaign ROI — ad spend vs revenue generated
→ Assess the return on capital expenditure (equipment, renovation, technology)

How to Use the ROI Calculator

1 Enter the amount you originally invested in the Initial Investment field.
2 Enter the total value or total returns received in the Final Value / Return field.
3 Optionally, enter the investment duration in the Time Period field and select Months or Years to see the annualised ROI.
4 Read the results: Net Profit / Loss (₦), ROI (%), and — if a period was entered — Annualised ROI (%).

Key Features

📈
ROI and annualised ROI

Shows both simple ROI and the compound annualised return when a time period is entered.
💰
Net profit display

Shows the absolute profit or loss in currency alongside the percentage.
🔴🟢
Profit / loss indicator

Results are colour-coded green for profit and red for loss.
⚡
Instant calculation

Results update as you type.
🆓
Free, no signup

No account required.

Example Usage

Example Input

Initial Investment: ₦100,000 | Final Value: ₦145,000 | Period: 2 years

Example Output

Net Profit: ₦45,000
ROI: 45%
Annualised ROI: 20.3%

Frequently Asked Questions about the ROI Calculator

What is the ROI Calculator?: The ROI Calculator is a free online tool that lets you calculate return on investment and compare the profitability of investments. It runs entirely in your browser, so there is nothing to install and nothing is uploaded to a server.
Is the ROI Calculator free?: Yes — the ROI Calculator is completely free, with no account, subscription, signup, or usage limits.
Is my data uploaded or stored?: No. The ROI Calculator processes everything locally in your browser. Your input is never uploaded, saved, or shared with any server.
Does the ROI Calculator work offline?: Yes. Once the page has finished loading, the ROI Calculator works without an internet connection.
Which browsers does the ROI Calculator work in?: The ROI Calculator works in all modern browsers, including Chrome, Firefox, Safari, and Edge — no plugins or extensions needed.
What is a good ROI?: It depends on the asset class and risk level. For stocks, a long-term average of 8–12% per year is considered reasonable. Real estate returns vary widely by location. Business investments often target 20%+ to justify the risk. Always compare ROI against the opportunity cost — what you'd earn on a safer alternative.
What is the difference between ROI and annualised ROI?: Simple ROI is the total return regardless of how long the investment was held. Annualised ROI (also called CAGR — Compound Annual Growth Rate) expresses that return as a yearly equivalent, making investments of different durations comparable. A 45% ROI over 2 years is roughly equivalent to a 20.3% annual return.