ROI Calculator
Calculate ROI percentage and net profit from an investment.
Used for annualised ROI (CAGR)
ROI
44%
Net £2,200.00
Net profit / loss
£2,200.00
ROI
44%
Annualised (CAGR)
12.92%
In-depth explanation
Measure return on investment from initial outlay and final value. Optionally enter years held to see annualised ROI (CAGR). Everything runs locally in your browser — your inputs are not uploaded to produce the result.
(Final value − initial investment) ÷ initial investment × 100. The constant yearly rate of return (CAGR) that grows the initial amount to the final value over the years held.
For a truer picture, use net amounts after fees and transaction costs. Use ROI Calculator for quick planning; confirm important money, tax, or health decisions with an official source or professional when needed.
ROI as a single percentage ignores how long the money was tied up. Annualised ROI (CAGR) makes a 2-year and a 10-year outcome comparable. It still assumes a smooth path and one initial outlay.
Use net figures after fees. Multiple cash flows (drip-feeding a portfolio) need a different method (IRR), which this page does not claim to be. Planning only — not a performance report for a regulated product.
Frequently asked questions
How is ROI calculated?
(Final value − initial investment) ÷ initial investment × 100.
What is annualised ROI?
The constant yearly rate of return (CAGR) that grows the initial amount to the final value over the years held.
Should I include fees?
For a truer picture, use net amounts after fees and transaction costs.
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