SaaS Metrics Calculator
Calculate MRR, ARR, NRR, churn, LTV:CAC, and more in one dashboard. Track your subscription business health with industry benchmarks.
Enter Your SaaS Metrics
Retention & Churn Metrics
Unit Economics
MRR Movement
SaaS Benchmarks Reference
| Metric | Poor | Moderate | Good | Excellent |
|---|---|---|---|---|
| Net Revenue Retention | <90% | 90-100% | 100-120% | >120% |
| Gross Revenue Retention | <85% | 85-90% | 90-95% | >95% |
| Monthly MRR Churn | >7% | 5-7% | 2-5% | <2% |
| LTV:CAC Ratio | <2:1 | 2-3:1 | 3-5:1 | >5:1 |
| CAC Payback | >18 months | 12-18 months | 6-12 months | <6 months |
| Quick Ratio | <1 | 1-2 | 2-4 | >4 |
Understanding SaaS Metrics
The key metrics every subscription business needs to track.
MRR & ARR
Monthly and Annual Recurring Revenue are your north star metrics. Track New MRR, Expansion, Contraction, and Churned MRR to understand growth dynamics. Learn the key differences in our MRR vs ARR explainer.
Net Revenue Retention
NRR above 100% means you're growing from existing customers alone. Best-in-class SaaS companies achieve 120-150% NRR through upsells and expansion revenue.
Churn Rate
Measure both logo churn (customers lost) and revenue churn (MRR lost). Even small improvements in churn compound dramatically over time.
LTV:CAC Ratio
Customer Lifetime Value divided by Acquisition Cost shows unit economics health. Target 3:1 or higher for sustainable growth.
Quick Ratio
Measures growth efficiency: (New + Expansion) / (Churn + Contraction). Above 4 is hyper-growth, 2-4 is healthy, below 2 is struggling.
CAC Payback
Time to recover customer acquisition cost from gross profit. Under 12 months is healthy; enterprise can tolerate longer payback.
MRR Movement Components
Understanding how your MRR changes month-over-month.
Example: Calculating MRR, Churn, and LTV for a $500K ARR Company
A B2B SaaS company at $500K ARR with 100 customers. Here's how the core metrics break down:
| Metric | Value | How Calculated |
|---|---|---|
| MRR | $41,667 | $500K ARR / 12 |
| New MRR | $5,000 | 12 new customers × $417 ARPU |
| Expansion MRR | $2,000 | Upgrades from existing |
| Churned MRR | $1,667 | 4 cancellations × $417 |
| Net New MRR | $5,333 | $5K + $2K - $1.67K |
| Monthly churn | 4% | $1,667 / $41,667 |
| Customer LTV | $10,417 | $417 ARPU / 4% churn |
At 4% monthly churn, this company loses 39% of customers annually. Reducing churn to 2.5% would increase LTV from $10,417 to $16,667 — a 60% improvement — without acquiring a single new customer. Use our customer LTV calculator to model the impact of churn reduction on lifetime value.
Who This Calculator Is For
SaaS Founders Tracking Subscription Metrics
Calculate your MRR waterfall, churn rate, and LTV:CAC ratio in one place to understand whether growth is efficient or fragile.
Finance Teams Preparing Investor Reports
Generate board-ready SaaS metrics with the exact calculations investors expect — NRR, quick ratio, and CAC payback — without spreadsheet errors.
Growth Teams Measuring Retention
Quantify the revenue impact of churn reduction and expansion initiatives to prioritize the retention levers with the highest LTV upside.
Frequently Asked Questions
Common questions about SaaS metrics and benchmarks.
What is Net Revenue Retention (NRR)?
NRR measures revenue changes from existing customers, including expansion, contraction, and churn. Formula: (Starting MRR - Churn - Contraction + Expansion) / Starting MRR. NRR above 100% means expansion exceeds churn. Top SaaS companies achieve 120-150% NRR.
What is a good LTV:CAC ratio for SaaS?
A healthy LTV:CAC is 3:1 or higher, meaning you earn $3 for every $1 spent on acquisition. Below 3:1 suggests inefficient growth. Above 5:1 could mean you're under-investing in growth and leaving market share on the table.
What is the SaaS Quick Ratio?
Quick Ratio measures growth efficiency: (New MRR + Expansion MRR) / (Churned MRR + Contraction MRR). Above 4 indicates hyper-growth, 2-4 is healthy growth, and below 2 suggests the business is struggling to grow efficiently.
What is an acceptable monthly churn rate?
For B2B SaaS, aim for less than 2-3% monthly (24-36% annual). B2C SaaS may see 5-7% monthly. Enterprise SaaS often achieves under 1% monthly due to longer contracts and higher switching costs. For a full breakdown of churn benchmarks and reduction strategies, see our SaaS churn rate guide.
How is CAC payback period calculated?
CAC Payback = CAC / (ARPU x Gross Margin). This tells you how many months until a customer repays their acquisition cost. Target under 12 months for SMB SaaS, under 18 months for enterprise. Faster payback enables reinvestment in growth.
What is CMRR in SaaS?
Committed Monthly Recurring Revenue (CMRR) includes your current MRR plus signed contracts that haven't started yet, minus known upcoming churn (customers who have given cancellation notice). It provides a forward-looking view of revenue that's more accurate than MRR alone for forecasting. CMRR is especially useful during high-growth periods when new contracts are being signed faster than they're being activated.
How do you calculate net new MRR?
Net New MRR = New MRR + Expansion MRR - Contraction MRR - Churned MRR. New MRR comes from first-time customers. Expansion comes from upgrades and seat additions. Contraction is downgrades. Churned is cancellations. A positive net new MRR means your business is growing. Negative means churn exceeds new business.
What SaaS metrics do Series A investors look at?
The core metrics for Series A in 2026: ARR ($2M-$5M expected), month-over-month revenue growth (15-20%), net revenue retention (100%+ minimum, 110%+ preferred), gross margin (70%+), CAC payback period (under 18 months), and burn multiple (under 2x). Investors also look at logo churn rate, customer concentration, and runway remaining.
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