Measure how efficiently you grow. The quick ratio compares the MRR you gain against the MRR you lose, in one number.
MRR added from new customers this period.
MRR added from upsells and seat growth.
MRR lost from downgrades (customer stays).
MRR lost from customers who cancelled.
Where your number lands and what it signals about growth efficiency.
| Quick Ratio | Label | What It Means |
|---|
The SaaS quick ratio measures growth efficiency. It asks a simple question: for every dollar of recurring revenue you lose, how many do you add back? A ratio of 4 means you gain $4 for every $1 you bleed.
It pulls the four movements of MRR into one number — new and expansion on the gain side, contraction and churn on the loss side. Net new MRR tells you the direction. The quick ratio tells you the efficiency.
Quick Ratio = (New + Expansion) / (Churned + Contraction) Example: $20K new, $8K expansion, $3K contraction, $5K churned:
A quick ratio of 4 or higher is the common benchmark for efficient growth. You're adding far more than you lose, so most of your acquisition effort converts into net expansion rather than backfilling churn.
Below 1, you lose more MRR than you gain. The base is shrinking even if you're signing new logos. No amount of new business outruns a leaky bucket forever — fix retention first.
A quick ratio of 4 or higher is considered healthy. It means you add $4 of recurring revenue for every $1 you lose to churn and contraction. Between 2 and 4 is workable but shows efficiency leaks. Between 1 and 2, you're barely growing. Below 1, your revenue base is shrinking.
They share a name but measure different things. The accounting quick ratio is a liquidity metric (liquid assets divided by current liabilities). The SaaS quick ratio measures growth efficiency: gained MRR divided by lost MRR over a period. This calculator is for the SaaS version.
Either works as long as you're consistent across all four inputs. Most SaaS teams track this monthly, so MRR is the common choice. If you measure annually, use ARR for new, expansion, contraction, and churn alike. The ratio is unitless, so the result is the same.
No, and that's a limitation. A quick ratio of 4 looks the same whether you're a $50K MRR startup or a $5M MRR scale-up. It measures the efficiency of the movement, not the scale. Read it alongside net new MRR and your total ARR to get the full picture.
Mechanically no, but a very high ratio (say 10+) often means you're early, churn hasn't caught up yet, or you're under-investing in expansion. As cohorts age, churn and contraction usually rise and the ratio settles. Watch the trend over several months rather than one snapshot.
Attack the denominator first: reducing churn and contraction lifts the ratio faster than chasing new logos. Then grow the numerator through expansion revenue (upsells, seat growth, usage). Expansion MRR is usually cheaper to win than net-new acquisition.
Calculators need manual inputs. Mowt pulls new, expansion, contraction, and churned MRR straight from Stripe and tracks your quick ratio over time.
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