Campaign ROI Calculator — ROI, ROAS & CAGR

ROI (Return on Investment) measures how efficient an investment is. Formula: ROI = (Revenue - Cost) / Cost x 100%. A positive ROI means profit; negative means a loss. Example: cost PLN 2,000, revenue PLN 10,000 gives ROI = 400%.

ROAS (Return on Ad Spend) is the ratio of revenue to advertising cost: ROAS = Revenue / Cost. A result of 5 means every currency unit spent on ads generated 5 units of revenue. The key difference: ROI measures profit relative to cost, ROAS measures raw revenue relative to ad spend.

CAGR (Compound Annual Growth Rate) is the mean annual growth rate of an investment over a specified period, assuming growth is compounded. Use it to compare investments with different time horizons. Formula: CAGR = (End Value / Start Value)^(1/years) - 1. Example: PLN 10,000 growing to PLN 12,100 over 2 years gives CAGR = 10%.

Yes. A negative ROI means a loss — revenue was lower than the cost incurred. Example: spent PLN 1,000, earned PLN 600 — ROI = -40%. Negative ROI signals that the campaign or investment did not deliver the expected results.

There is no universal threshold, but in digital marketing an ROI above 100% (each unit spent returns at least 2 units of revenue) is often seen as a minimum for profitability. For e-commerce a ROI of 300-500% is typical. A ROAS of 4:1 is widely used as a benchmark.

The calculator uses: CAGR = ((End Value / Start Value)^(1/years) - 1) x 100. It also displays total profit (End Value minus Start Value) and total percentage return. CAGR is especially useful when comparing investments with different durations.

Total profit is the absolute amount earned over the entire period — e.g. PLN 5,000 on a PLN 10,000 investment. CAGR spreads that profit over years, showing the average annual growth rate with compounding. Two investments can have equal total profit but different CAGRs if their durations differ.

The calculator returns gross return — before tax. In Poland, investment gains are subject to 19% capital gains tax (the so-called Belka tax). To estimate net return, subtract 19% from the calculated profit.

A ROAS below 1 means the campaign generates less revenue than it costs — every unit spent on ads returns less than 1 unit of revenue. The campaign is running at a loss. ROAS = 1 is the break-even point for ad spend (revenue equals advertising cost, before other expenses).

No. The calculator is for informational and educational purposes only. Results are mathematical computations based on the inputs provided and do not account for market risk, inflation, hidden costs or individual financial circumstances. Consult a licensed financial adviser before making investment or marketing decisions.