MRR Calculator
Calculate monthly recurring revenue from paying customers and average subscription price.
Open calculator →SaaS Metrics Explained
SaaS numbers come from subscriptions, expansions, and churn. Treat these calculators as rough planning—not GAAP substitutes.
What are SaaS metrics?
Mostly recurring revenue momentum, churn in logos or dollars, acquisition cost efficiency, and how long customers stick or grow.
Revenue metrics
Start with the MRR calculator to calculate monthly recurring revenue from paying customers. Convert annual prepay to a monthly run rate before you compare MRR and ARR. Net revenue retention adds expansions minus churn-dollar losses.
Customer metrics
CAC divides spend by new customers—define “new.” LTV and payback calculators need gross profit and churn inputs that share one time horizon.
Retention metrics
Gross retention keeps upgrades out so you see churn plainly. Net retention folds expansion back when you judge land-and-expand health. Use the Churn Rate Calculator to measure subscription churn alongside MRR. Quick ratio contrasts new-plus-expansion against churn-dollar loss in one shorthand.
Recommended workflow
- Calculate MRR consistently month to month before you multiply to ARR.
- Split logo churn from failed payments when you can.
- Read NRR and GRR as a pair, not replacements.
- Add CAC, LTV, and payback with shared ARPU assumptions.
- Optional: quick-ratio check when contractions swing sharply.
Featured calculators
ARR Calculator
MRR × 12—the shorthand annualized run rate investors ask for in casual updates.
Open calculator →ARPU Calculator
Revenue ÷ paying accounts for the same slice and period your analytics export uses.
Open calculator →Churn Rate Calculator
Customers lost ÷ beginning cohort × 100 in the observation window—you define "lost."
Open calculator →Logo Churn Calculator
Calculate logo churn—the percent of customer accounts lost in a period.
Open calculator →CAC Calculator
Sales + marketing spend in a slice ÷ newly acquired customers counted the same window.
Open calculator →LTV Calculator (Simple Gross Margin Adjusted)
Simplified annuity-style gross LTV using ARPA, margin, and churn in shared time units.
Open calculator →LTV CAC Calculator
Calculate the LTV:CAC ratio from customer lifetime value and acquisition cost.
Open calculator →CAC Payback Period Calculator
Months to recover CAC using monthly gross profit per account (ARPU × margin unless you enter profit directly).
Open calculator →Net Revenue Retention Calculator
Ending expansion-adjusted recurring revenue indexed to starting baseline for the cohort window.
Open calculator →Gross Revenue Retention Calculator
Share of starting MRR kept after churn and contraction-dollar losses—before deliberate upsell credit.
Open calculator →Revenue Churn Calculator (Gross MRR Lost)
Recurring revenue lost from downgrades and cancellations compared with recurring revenue at the start of the period.
Open calculator →Expansion MRR Calculator (Share of Starting MRR)
Expansion bookings as a percentage of starting MRR for the timeframe you framed.
Open calculator →SaaS Quick Ratio Calculator
(New MRR + expansion MRR) ÷ churn and contraction dollars—velocity check, not profit.
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