About the SaaS Metrics Calculator
What is the SaaS Metrics Calculator?
This SaaS metrics calculator turns five inputs into the dashboard investors ask for: ARR, average revenue per account, customer lifetime, lifetime value, LTV to CAC and CAC payback.
Use it for a quick health check before a board meeting or fundraise.
How to use the SaaS Metrics Calculator
- Monthly Recurring Revenue (₹) (sample: 30,00,000)
- Paying Customers (sample: 1,200)
- Monthly Customer Churn (%) (sample: 2.5)
- Gross Margin (%) (sample: 78)
- Customer Acquisition Cost (₹) (sample: 18,000)
- Press Calculate SaaS Metrics (results also refresh as you type). The result card shows the ARR, along with ARPA (per customer per month), Customer lifetime, LTV (gross margin) and LTV : CAC.
Formula used
LTV = (MRR ÷ Customers) × Gross margin ÷ Monthly churn
- ARR = MRR × 12
- CAC payback = CAC ÷ (ARPA × gross margin)
Metrics are averages; segment by plan or customer size for sharper insight.
Worked example
These are the sample values already filled in the calculator above, and the result it returns for them:
| Input | Sample value |
|---|---|
| Monthly Recurring Revenue (₹) | 30,00,000 |
| Paying Customers | 1,200 |
| Monthly Customer Churn (%) | 2.5 |
| Gross Margin (%) | 78 |
| Customer Acquisition Cost (₹) | 18,000 |
| Result | Value |
|---|---|
| ARR | ₹3,60,00,000 |
| ARPA (per customer per month) | ₹2,500 |
| Customer lifetime | 40 months |
| LTV (gross margin) | ₹78,000 |
| LTV : CAC | 4.33× |
| CAC payback | 9.2 months |
| Annual customer churn | 26.2% |
SaaS benchmarks
| Metric | Healthy benchmark |
|---|---|
| LTV : CAC | 3× or more |
| CAC payback | Under 12 months (SMB), under 18–24 months (enterprise) |
| Gross margin | 70–80% or more for software |
| Monthly logo churn | Under 2% (SMB), under 1% (enterprise) |
| Net revenue retention | 100% or more; 120%+ is best-in-class |
| Rule of 40 | Growth % + profit margin % ≥ 40 |
Tips for using the SaaS Metrics Calculator
- Report metrics with consistent definitions every month.
- Watch the trend, not just the level: a falling LTV:CAC needs attention.