SaaS Quick Ratio calculator
Measure the efficiency of your MRR growth — how much revenue you gain for every dollar you lose to churn and downgrades.
Enter your new MRR, expansion MRR, churned MRR, and contraction MRR. The Quick Ratio divides your gains by your losses — a score of 4+ indicates elite growth efficiency; below 1 means losses are outpacing gains.
SaaS Quick Ratio calculator inputs and results
Quick Ratio benchmarks
How the SaaS Quick Ratio works
The Quick Ratio was popularised by Mamoon Hamid at Kleiner Perkins as a way to measure growth quality, not just growth rate. Two companies can have identical net MRR growth, but if one achieves it with low churn and the other compensates for high churn with aggressive new sales, the underlying businesses are very different in quality and sustainability.
A high Quick Ratio means you're generating a lot of new and expansion revenue relative to what you're losing — each dollar of churn is small compared to what the growth engine brings in. A low ratio means churn drag is real: you're working hard just to stay flat, or your growth is partially masking an underlying retention problem that will compound over time.
About this tool
This tool calculates the SaaS Quick Ratio: (New MRR + Expansion MRR) ÷ (Churned MRR + Contraction MRR). It measures how efficiently a SaaS company is growing relative to the revenue it loses. A ratio below 1 means the business is shrinking; 4+ indicates elite growth efficiency. Inputs: new MRR, expansion MRR, churned MRR, contraction MRR. Output: Quick Ratio with health rating.
Frequently asked questions
What is the SaaS Quick Ratio?
The SaaS Quick Ratio, introduced by Mamoon Hamid at Kleiner Perkins, measures the efficiency of MRR growth. It divides the revenue you gain (new customers plus expansion from existing ones) by the revenue you lose (cancellations plus downgrades). A ratio above 1 means you're growing; the higher the ratio, the more revenue you gain for every dollar you lose. It's a cleaner signal than raw growth rate because it captures how much churn drag your growth has to overcome.
What's a good SaaS Quick Ratio?
A ratio of 4 or above is considered elite and associated with the fastest-growing SaaS companies. Ratios of 2–4 indicate healthy, efficient growth. A ratio between 1 and 2 means you're growing but with significant churn drag. Below 1 means you're shrinking — losses are outpacing gains. Early-stage companies often have volatile ratios because small absolute numbers swing the percentage; it becomes most meaningful once you have a stable base of revenue to churn from.
How does the Quick Ratio differ from NRR?
NRR measures what happened to an existing cohort — it tells you how much of your starting revenue you retained and grew. The Quick Ratio measures the overall efficiency of your MRR engine by comparing total gains to total losses, including new customer revenue. NRR is the right metric for understanding retention and expansion; the Quick Ratio is better for understanding growth quality and how hard your churn drag is to overcome.
What if my churned or contraction MRR is zero?
A zero denominator makes the Quick Ratio undefined mathematically — but in practice it means your losses are negligible, which is a very strong signal. Early-stage companies sometimes have no churn for a period simply because their earliest customers haven't had enough time to cancel. As the business matures, some level of contraction and churn is normal and the ratio will stabilise into a meaningful range.