SaaS Metrics
The SaaS metrics that decide whether your growth is healthy — calculated instantly, benchmarked against 2026 medians.
MRR & ARR Calculator
Turn plans, seats and billing terms into clean MRR and ARR — including net-new MRR after churn.
Net Revenue Retention (NRR) Calculator
Calculate NRR from expansion, contraction and churn — and see how it compares to SaaS benchmarks.
Gross Revenue Retention (GRR) Calculator
Measure the revenue you keep before expansion — your retention floor — against benchmarks.
Churn Rate Calculator
Calculate customer and revenue churn, and convert between monthly and annual churn correctly.
ARPU & ARPA Calculator
Average revenue per user/account from MRR and active accounts — monthly and annual.
CAC Calculator
Customer acquisition cost from sales & marketing spend and new customers won.
LTV Calculator
Customer lifetime value from ARPA, gross margin and churn — the right way, margin-adjusted.
LTV:CAC Ratio Calculator
The LTV:CAC ratio with payback period — is your acquisition efficient enough to scale?
CAC Payback Period Calculator
How many months to recover CAC from gross-margin-adjusted new MRR.
SaaS Magic Number Calculator
Sales efficiency: new ARR generated per dollar of prior-quarter sales & marketing spend.
SaaS Quick Ratio Calculator
Growth efficiency: new + expansion MRR divided by churned + contraction MRR.
Rule of 40 Calculator
Growth rate + profit margin, including the weighted variant — do you clear 40%?
Burn Rate & Runway Calculator
Net burn and months of runway, with a hiring-plan scenario to stress-test your cash.
The SaaS metrics that actually matter
Every SaaS board deck comes down to a handful of numbers: how fast revenue grows (MRR/ARR), how well you keep it (NRR, GRR, churn), how efficiently you buy it (CAC, LTV:CAC, CAC payback, magic number), and whether the whole machine is balanced (Rule of 40, burn and runway). This hub calculates each one instantly and tells you how it compares to directional 2026 medians.
How the metrics fit together
Start with MRR. Retention (NRR/GRR) tells you whether that base compounds or leaks. Acquisition efficiency (CAC payback, magic number) tells you whether growth is worth funding. Rule of 40 and runway tell you whether the trade-off between growth and burn is sustainable. A weak number in one layer usually shows up two layers later — which is why investors read them together.
What “good” looks like in 2026
Directionally: NRR of 105%+ is healthy and 120%+ is top-quartile; monthly revenue churn under 2% is solid; CAC payback under 12 months is efficient for SMB (18–24 acceptable for enterprise); a magic number above 0.75 says invest more; and growth plus profit margin should clear 40%. Every calculator here shows these bands inline, with sources.
Guides
What Is a Good Net Revenue Retention? (2026 Benchmarks)
What counts as good net revenue retention in 2026? Directional NRR benchmarks by stage, NRR vs GRR, a worked example, and the levers that move it.
SaaS Churn Rate: How to Calculate It Right (Monthly vs Annual)
Calculate SaaS churn rate correctly: customer vs revenue churn, the monthly-to-annual compounding formula, cohort pitfalls, and 2026 benchmarks.
CAC Payback Period: Formula, Benchmarks & How to Improve It
CAC payback period explained: the gross-margin-adjusted formula, 2026 benchmarks by stage and segment, a worked example, and five levers to shorten it.
The Rule of 40, Explained — Plus the Weighted Variant
What the Rule of 40 measures, which profit metric to use, and why the weighted variant multiplies growth by 1.33x — worked examples plus 2026 benchmarks.
LTV:CAC Ratio: Why 3:1 Is the Benchmark (and When It Lies)
Why 3:1 is the SaaS LTV:CAC benchmark, when high ratios signal underinvestment, and the LTV inflation tricks that break the math — with 2026 medians.
Burn Rate & Runway: How Long Until Default Alive?
Gross vs net burn, default alive vs default dead, and why hiring plans wreck naive runway math — with worked examples and 2026 SaaS benchmarks.
SaaS Magic Number: The Sales-Efficiency Metric Investors Check
The SaaS magic number explained: the quarter-lag formula, what 0.5 / 0.75 / 1.0 mean, how it differs from CAC payback, and when to scale sales spend.