ROI Calculator
Free ROI calculator: work out total return on investment, net profit and the annualised rate (CAGR) from what you put in and what it's worth now.
updated
- ✓ Runs in your browser — nothing uploaded
- ✓ No sign-up
- ✓ Free, no limits
Total ROI is the overall gain relative to what you put in. The annualised figure (CAGR) is the smoothed yearly rate that turns your initial into the final over the holding period — the fair way to compare investments held for different lengths of time. Before fees and tax.
This ROI calculator turns two numbers — what you invested and what it is worth now — into the figures that let you judge and compare an investment: the total return on investment as a percentage, the net profit in money, and, if you enter a holding period, the annualised return (CAGR).
Total ROI is the headline: a €1,000 investment now worth €1,500 is a 50% return. But total ROI alone is misleading when comparing investments held for different lengths of time — 50% over two years is not as good as 50% over one. That is what the annualised figure fixes. CAGR (compound annual growth rate) is the smooth yearly rate that would take your starting amount to the final amount over the years held, so a two-year 50% return shows as about 22.5% a year — directly comparable to any other annualised rate, from a savings account to a stock.
Use it for shares, funds, property, a side project or any before-and-after value. The result is before fees and tax, which both eat into real returns. Everything is computed in your browser and nothing you enter is uploaded.
Frequently asked questions
How do I calculate ROI?
ROI = (final value − initial investment) ÷ initial investment × 100. So €1,000 growing to €1,500 is a 50% return. Enter both figures and the calculator shows the percentage and the net profit instantly.
What is annualised ROI (CAGR) and why does it matter?
It is the steady yearly rate that turns your initial amount into the final amount over the years you held it. It lets you fairly compare investments held for different periods — a 50% total return over two years is about 22.5% a year.
Does it include fees and tax?
No — it shows the gross return from the two values you enter. Real returns are lower after trading fees, fund charges and tax, so treat the result as the before-costs figure.