Margin Calculator
Find profit margin.
Measure how much an investment gained or lost relative to its cost, and compare investments held for different lengths of time with annualized ROI.
ROI = (Returned − Invested) ÷ Invested × 100 Annualized ROI = ((Returned ÷ Invested)^(1 ÷ years) − 1) × 100
Annualized ROI is the constant yearly growth rate (CAGR) that turns the invested amount into the returned amount over the given period.
You bought shares for $8,000 including fees and sold them 4 years later for $11,200.
A 25% return sounds strong, but it means something very different over one year than over ten. Annualized ROI converts any holding period into an equivalent yearly rate so you can compare investments fairly.
It depends on risk and time. Broad stock market indices have historically returned roughly 7–10% per year before inflation, so many investors use that range as a benchmark.
Yes. Commissions, taxes and other costs reduce your real return, so include them in the amount invested (or subtract them from the amount returned).
Yes. If you get back less than you invested, ROI is negative and shows the percentage lost.
ROI measures the total return over the whole period. Annualized ROI expresses that return as a compound yearly rate.