Free Marketing Calculators
Campaign math for ROAS, CTR/CPC/CPA, A/B tests, and budget pacing.
- Performance metrics: ROAS, CTR, CPC, CPA
- A/B test significance approximations
- QR, UTM, and meta tag generators
8 tools in this category
QR Code Generator
Create downloadable QR codes for URLs and text
OpenMeta Tags Generator
Generate Open Graph and Twitter Card HTML
OpenUTM Builder
Build campaign URLs with UTM parameters
OpenROAS Calculator
Return on ad spend and profit from campaign results
OpenCTR / CPC / CPA Calculator
Click-through rate, cost per click, and cost per acquisition
OpenA/B Test Significance
Two-proportion z-test for conversion experiments
OpenAd Budget Pacing
Daily spend needed to hit a campaign budget on time
OpenEngagement Rate Calculator
Engagement rate from likes, comments, shares, and reach
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