#1
ARR
$120,000 — MRR × 12
SaaS KPI Calculator
Get the math. Then diagnose the change.
Calculate KPIs in seconds — understand what to investigate next.
example output
Your SaaS KPIs
ARR, ARPU, simple LTV, and LTV:CAC from the numbers you entered.
#2
Simple LTV
$1,667 — ARPU ÷ monthly churn rate
#3
LTV:CAC
4.2x — rough payback signal
Numbers show what happened. FlarePath explains why.
Quick answer
Enter MRR, customers, churn, and CAC to calculate ARR, ARPU, simple LTV, LTV:CAC, and payback. Then diagnose why a metric moved with FlarePath.
How it works
01
Enter your numbers
Metric, direction, and context — takes under a minute.
02
Get ranked causes
See what to investigate first — not fifty charts.
03
Connect for a live read
FlarePath syncs your stack and updates your Guide daily.
Try it now
Example output
Your SaaS KPIs
ARR, ARPU, simple LTV, and LTV:CAC from the numbers you entered.
#1
ARR
$120,000 — MRR × 12
#2
Simple LTV
$1,667 — ARPU ÷ monthly churn rate
#3
LTV:CAC
4.2x — rough payback signal
Numbers show what happened. FlarePath explains why.
Related diagnosis
About this tool
What does the SaaS KPI Calculator do?
It computes ARR, ARPU, simple LTV, LTV:CAC, CAC payback, and approximate NRR from the numbers you enter. No account required.
Is the LTV formula exact?
No. ARPU ÷ monthly churn is a rough starting point. It ignores expansion, discounts, and cohort differences. Use it to orient, then diagnose with live data.
What should I do after I calculate?
If a number moved the wrong way, diagnose why. Try the Metric Change Analyzer or connect FlarePath for a weekly Guide across Stripe and Analytics.