Marketing Calculators — SEO
Campaign measurement: A/B test duration, CPC to CPM conversion, content marketing ROI, and ad copy character limits. Test duration is the one to run before launching, since it tells you whether the test can finish at your traffic level.
All Marketing Calculators
Calculate how long to run an A/B test for statistical significance given traffic and lift.
Check character limits for Google Ads, Facebook Ads, LinkedIn Ads, and Twitter Ads.
Calculate the ROI of content marketing efforts from production costs and generated revenue.
Convert between cost-per-click (CPC) and cost-per-thousand-impressions (CPM) using CTR.
Calculate CAC from total marketing spend and new customers acquired.
Score email subject line effectiveness based on length, urgency, personalization, and spam triggers.
Estimate fair influencer rates based on follower count, engagement rate, and platform.
Calculate conversion rate and revenue impact from landing page traffic and conversions.
Calculate marketing campaign return on investment from spend and revenue generated.
Calculate return on investment for social media campaigns across platforms.
Plan holdout tests to measure true incremental lift of ad campaigns
Generate high-impact A/B test ideas for landing page headlines, CTAs, and copy optimization
Compare attribution models and analyze multi-touch conversion paths
Optimize multi-channel ad budget allocation based on ROAS and conversion data
Calculate Cost Per Mille for ads
Calculate how long A/B tests need to run based on traffic and MDE
Validate and generate UTM campaign URLs
About Marketing Calculators
Campaign measurement: A/B test duration, CPC to CPM conversion, content marketing ROI, and ad copy character limits. Test duration is the one to run before launching, since it tells you whether the test can finish at your traffic level.
Whether you need to solve a one-time problem or verify your own calculations, these free tools cover the most common marketing scenarios. All results are computed in your browser — no data is sent to any server.
What You Can Calculate
This section includes 17 tools: Ab Test Duration Calculator, Ad Copy Character Counter, Content Marketing ROI Calculator, CPC to CPM Converter, Customer Acquisition Cost Calculator, Email Subject Line Scorer, Influencer Rate Calculator, Landing Page Conversion Calculator, and 9 more. Each calculator is free to use with no signup required.