What counts as a “good” ROI?

It depends on risk, horizon, and your next-best alternative, such as a near-zero-risk deposit. A high ROI on a short window can hide volatility; a low ROI is not always wrong if costs and time are different. Compare like with like: same currency and time span.

What is the difference between ROI and annual return?

ROI is often for the whole deal, while annualised return spreads results per year when the tool defines it that way. Annual figures help compare investments with different lengths if the same math is used. Do not mix definitions across spreadsheets.

Can I compare ROI across investments?

Yes if principal, currency, term, and omitted costs are aligned; otherwise the comparison misleads. Add risk and liquidity, not a single number alone. The calculator is arithmetic from your fields, not a business plan.

Does ROI include inflation?

Typical fields use nominal values with no automatic inflation unless you type real values yourself. Subtract inflation or use an inflation tool for purchasing power. Otherwise you may look “ahead” in BGN but not in what money buys.

ROI Calculator

Return on investment percentage

Amount invested (EUR)

Final / current value (EUR)

Enter invested and final value.

Methodology

ROI % = (final value − invested) / invested × 100

Example

Invest €1 000, final €1 200 → profit €200, ROI 20%.

Frequently asked questions

ROI (return on investment) is often (end value minus start value) divided by start value, expressed in percent for the period you enter. The tool summarises the numbers you provide, not a full business cost inventory. If you use leverage, include interest so you do not overstate ROI with other people’s money.

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