Growth Math — B2B Marketing Calculators

Growth Math is a free suite of 5 marketing calculators designed for B2B SaaS founders and marketers. No sign-up required — just install and start calculating. CALCULATORS INCLUDED: 1. SEO ROI Calculator — Project your organic traffic, leads, revenue, and 12-month ROI from SEO investment. Uses real CTR data by SERP position. 2. Automation Savings Calculator — Calculate hours freed, monthly labor savings, error-cost reduction, and payback period for automation projects. 3. CAC + LTV Calculator — Determine Customer Acquisition Cost, Lifetime Value, LTV:CAC ratio, payback period, and get a grade (A-D) for your unit economics. 4. A/B Sample Size Calculator — Calculate required sample size for A/B tests using two-proportion z-test, plus estimated days to statistical significance. 5. SaaS Pricing → ARR Forecast — Model your ARPU, MRR, and ARR at 12 and 36 months with churn modeling across three pricing tiers. ✨ KEY FEATURES: • 100% free — no subscription, no sign-up • Privacy-first — all calculations run locally in your browser, no data is sent anywhere • Works offline — no internet connection required after installation • Clean, fast interface — get results in seconds • Copy results with one click — paste into Slack, docs, or presentations Perfect for: B2B SaaS marketers, growth teams, founders, SEO specialists, product managers, and anyone making data-driven marketing decisions. Built by Global One Digital — B2B SEO and automation agency.