Does ARR equal booked revenue?
No. It is a simple annualization of current MRR and may differ from bookings. Contract timing, discounts, and one-time fees can make GAAP revenue different.
SaaS Metrics Calculator - CAC, CLV, Churn, and MRR
Calculate a focused set of recurring-revenue metrics for one reporting period.
Review customer movement, acquisition costs, revenue, and operating costs together.
SaaS reporting inputs
Use values measured over the same period, such as one calendar month.
About SaaS operating metrics
SaaS reporting is more useful when related metrics use the same period and customer definition. The SaaS metrics calculator brings together customer acquisition cost, a simple customer lifetime value, churn, operating margin, MRR, and annual recurring revenue. It treats marketing and sales costs as acquisition spend, divides them by new customers to estimate CAC, and annualizes MRR by multiplying by twelve. The figures provide a quick management view rather than audited financial statements. Customer churn is calculated as churned customers divided by total customers. Use a consistent opening or average customer base in your internal reports, because a rapidly growing business can otherwise make churn look artificially low. Revenue churn and net revenue retention may tell a different story when customers upgrade, downgrade, or expand. The lifetime-value figure uses average revenue per customer multiplied by average customer lifespan, so it is a revenue estimate rather than a gross-profit measure. Operating margin here subtracts marketing spend, sales costs, and operational costs from MRR. It excludes many items that may belong in a formal income statement, including payroll classifications, taxes, financing, depreciation, and one-time charges. Treat a negative margin as a prompt to investigate unit economics and growth investment, not as a final valuation of the company. Test the model by changing one driver at a time. More new customers at the same spend lowers CAC; more churn raises the cost of maintaining growth; higher ARPC can lift CLV but may change churn. Segment enterprise and self-service customers when their behavior differs materially. Track actual cohorts after each period, document your definitions, and pair this dashboard with cash runway and gross-margin analysis before making spending commitments. Use source-system dates consistently. A customer signed this month but invoiced next month can distort CAC and churn if costs and counts are mixed. A simple monthly scorecard is most useful when finance, sales, and product teams agree on data cutoffs and definitions.
SaaS metrics examples
The examples assume all spend and customer counts cover one period.
| Period inputs | Metric result | Planning note |
|---|---|---|
| $15,000 marketing + $8,000 sales; 100 new | $230.00 CAC | Acquisition spend divided by new customers. |
| $50 ARPC for 24 months | $1,200.00 CLV | This is revenue before direct service costs. |
| 25 churned from 1,000 customers | 2.50% | Use a consistent customer-base definition. |
How to calculate SaaS CAC, churn, and ARR
- Choose one reporting period.
- Enter customer movement and acquisition spend for that period.
- Add MRR, ARPC, lifespan, and operating costs.
- Review metric definitions before comparing periods or segments.
SaaS metrics FAQ
What costs are in CAC?
The SaaS metrics calculator uses the marketing and sales costs entered for the period. Exclude unrelated overhead unless you intentionally want a fully loaded CAC.
Is CLV gross profit?
No. Add gross margin or direct costs for a profit-based customer value. The displayed CLV is revenue over the entered lifespan.
Can I compare segments?
Yes, if each segment has its own consistent revenue, churn, lifespan, and cost inputs. Blending unlike products can hide a weak segment.