10 live calculators for the metrics that matter most: NRR, GRR, churn, LTV, CAC payback, Rule of 40, magic number, quick ratio. Compute live + get your peer-group percentile.
Net Revenue Retention. The headline retention metric — peers cite this on board decks.
Compute Gross Retention Rate live. The count-side complement to NRR — strips out expansion to show pure churn + contraction loss.
Compute annualized customer churn rate. Lower = stickier customer base.
Compute average customer lifetime in months from your annual churn rate.
Estimate customer lifetime value from ARPU, gross margin, and churn.
Compute the LTV-to-CAC ratio. The single most-cited SaaS unit-economics test.
How many months until a customer's gross profit repays your acquisition cost?
Compute Rule of 40 score (growth rate + FCF margin). Wall Street's filter for SaaS health.
Compute SaaS Magic Number — quarterly sales efficiency. >1.0 invest more, <0.5 cut spend.
Wins divided by losses. >4 = healthy growth quality. <1 = you're losing more than winning.