A4 · Calculators · 4 tools
GTM Calculators
Browser-native. No data leaves your browser.
4 calculators covering the core GTM economics metrics: CAC payback period (with NRR-adjusted variant), corrected LTV:CAC using sBG adjustment, Rule of 40 and Rule of X side-by-side, and a motion selector that maps ACV + buyer type + time-to-value to PLG / Hybrid / Sales-led. All computation runs client-side — nothing is sent to any server.
A4 · Calculator
CAC Payback Period
How many months to recover CAC from gross profit? Enter S&M spend, new customers, ACV, gross margin, and NRR. Includes NRR-adjusted payback and benchmark comparison.
Open calculator →
A4 · Calculator LTV:CAC Ratio
Naive LTV vs sBG-corrected LTV side-by-side. The corrected version is typically 20–60% lower for B2B SaaS. Includes interpretation thresholds.
Open calculator →
A4 · Calculator Rule of 40 / Rule of X
Rule of 40 (growth + EBITDA margin) and Rule of X (growth × 2 + FCF margin) side-by-side. Best-in-class: > 60. Bessemer 2024 benchmarks.
Open calculator →
A4 · Tool GTM Motion Selector
PLG vs Hybrid vs Sales-led. Enter ACV, sales cycle, time-to-value, virality, and buyer type. Based on T5 — motion as forced move.
Open calculator →