Return on Investment (ROI) Calculator

Compute gain/loss, ROI %, and annualized return (CAGR). Fully client-side.

Mode: Dates Currency: £

Currency

Use dates

Use length

Amount invested Amount returned

From date To date

Include fees

Investment gain

£0.00

ROI

0.00%

Annualized return (CAGR)

—

Length (years)

—

Invested Profit Loss

About this calculator

ROI is calculated as (Returned − Invested) / Invested. Annualized return uses compound annual growth rate (CAGR): (Returned / Invested)^(1/years) − 1.

FAQ

Do you upload any of my inputs?

No. All calculations happen in your browser.

What if the investment made a loss?

The ROI will be negative and the chart shows the loss in red.

How is time handled?

For dates, years are computed using 365.2425 days for accuracy. For length, we use the value you provide.