SaaS Quick Ratio Calculator
Enter new ARR, expansion ARR (upsell/cross-sell), churned ARR, and downgrade ARR to calculate the SaaS "Quick Ratio" — a measure of growth efficiency. Includes a 4-tier rating and benchmark table.
Quick Ratio benchmark reference table
| Tier | Quick Ratio range | Meaning |
|---|---|---|
| Excellent | 4 or higher | ARR gained is at least 4x ARR lost — a very healthy growth engine |
| Good | 2 to under 4 | ARR gained comfortably outpaces ARR lost — solid growth |
| Fair | 1 to under 2 | ARR gained only slightly outpaces ARR lost — room to improve |
| Poor | Below 1 | ARR lost exceeds ARR gained — overall ARR is shrinking, a risky state |
What counts as a healthy Quick Ratio varies by business stage and customer segment. Treat these ranges as general guidance only.
Usage tips
- Unlike NRR, which only looks at your existing customer base, Quick Ratio includes new ARR in the numerator — making it better suited to judging the health of your overall growth engine.
- To break down the new-vs-expansion split further, pair this with our MRR/ARR growth simulator or SaaS Magic Number calculator.
- Tracking whether churn or downgrades drive most of your total losses makes it easier to prioritize customer-success initiatives.
- You can calculate this monthly, quarterly, or annually, but shorter periods are more sensitive to timing noise in churn and expansion — keep the period consistent when comparing over time.
Frequently asked questions
Side Note — A SaaS metric that measures quality, not just quantity
The SaaS Quick Ratio is generally credited to David Skok, a partner at venture capital firm Matrix Partners, who introduced the concept around 2010; it was later widely adopted by the SaaStr community and beyond. Looking at ARR growth rate alone cannot tell you whether that growth came from new acquisition or simply from low churn. By directly comparing ARR gained against ARR lost, Quick Ratio makes the "quality" of growth visible at a glance.
The name is a deliberate analogy to the accounting "quick ratio," which measures a company's short-term liquidity as the ratio of liquid assets to current liabilities. Just as the accounting version measures a firm's ability to pay near-term obligations, the SaaS version measures a business's growth resilience as a ratio of ARR gained to ARR lost.
In practice, a Quick Ratio that falls below 1 (losses exceeding gains) for several consecutive months is treated as an early warning sign that overall ARR is about to shrink. It is one of the metrics investors commonly check during SaaS due diligence, typically alongside NRR and Rule of 40 for a fuller picture of business health.