ROI Calculator
Return on investment
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Was it worth it?
Enter cost and return — get ROI % and net profit instantly. Switch to the Ad ROAS tab for the marketer's version (revenue per ad dollar).
Frequently asked questions
What is a good ROI?
Depends on risk — 10–15% annually beats markets; businesses often target 20%+ per project. Compare against your next-best alternative.
ROI vs ROAS — what's the difference?
ROI measures total profit vs total cost. ROAS (ad platforms) measures revenue vs ad spend only — 4x ROAS means $4 back per $1 of ads.
Can ROI be negative?
Yes — you lost money. −50% means you got back half your investment.
Why does the ad tab exist?
Marketers live in ROAS. Same math, different lens — switch tabs instead of hunting another tool.