10,6%
Rynek reklamy online w Polsce wzrósł o 10,6% w pierwszym kwartale 2026 roku.
IAB Polska/PwC01/2026Poland
Return on marketing investment: (margin from activities − cost of activities) ÷ cost of activities.
Why it matters
Unlike ROAS, it measures margin, not revenue — and it’s margin that pays salaries.
What's missing without it
Without ROMI, a campaign with a ROAS of 4:1 may look great but could actually be unprofitable if the product margin is 20%.
When it is used
When allocating annual budgets, comparing marketing with other company investments.
How we use it
Margin of 300,000 PLN with a cost of 100,000 PLN → ROMI 200%.
Numbers worth knowing
Marketing in data
77 500 000 000
Liczba odsłon reklam online w Polsce w lipcu 2026
Gemius08/2026Poland
83%
Od lipca 2024 do czerwca 2026 wskaźnik zgłoszeń reklam oszukańczych spadł w Polsce o 83%.
Meta09/2026Poland
Figures from the same field — collected in our market data base.