How do I calculate ROI?

ROI equals (gain from investment minus cost of investment) divided by cost of investment, times 100. A positive ROI means the investment is profitable.

What is a good ROI for SaaS?

SaaS businesses typically target 3-5x ROI on marketing spend. A $1 spent should generate $3-5 in customer lifetime value.

Why is ROI important for startups?

ROI helps founders prioritize spending. If one channel delivers 5x ROI and another delivers 1.5x, the choice is obvious.

Free ROI Calculator (2026) — See Your Real Return on Investment

8,500+

ROI Calculations

25+

Investment Types

3,200+

Projects Analyzed

$45M+

Returns Tracked

ROI Calculator: Measure Your Return on Investment

BigIdeasDB's free ROI calculator helps you evaluate whether your business investments are paying off. Compare marketing channels, project investments, and spending decisions side-by-side to allocate capital where it matters most.