Calculate SaaS quick ratio to measure growth efficiency. Compare new and expansion MRR against churned and contraction MRR for revenue health.
The SaaS quick ratio measures the efficiency of revenue growth by comparing how much new revenue a company adds relative to how much it loses. Specifically, it divides the sum of new MRR and expansion MRR by the sum of churned MRR and contraction MRR. A ratio of 4 means you add $4 in new and expansion revenue for every $1 lost — a healthy and sustainable growth pattern.
Unlike raw MRR growth, the quick ratio reveals the quality of that growth. Two companies can have the same net MRR growth, but the one with lower churn (higher quick ratio) is building on a more solid foundation. A company growing $100K net new MRR with a quick ratio of 2 (adding $200K, losing $100K) is in a much more precarious position than one with a ratio of 10 (adding $110K, losing $10K).
This calculator computes your SaaS quick ratio, provides a visual MRR waterfall breakdown, benchmarks your result, and shows how changes to each component affect the overall ratio. Use it to diagnose the health of your recurring revenue growth engine.
The SaaS quick ratio tells you whether growth is efficient or whether you're running on a treadmill — acquiring new revenue just to replace what's churning away. This calculator gives you an instant ratio, breaks down each MRR component visually, and shows exactly what levers to pull to improve growth quality. It's essential for any SaaS leader focused on sustainable growth.
SaaS Quick Ratio = (New MRR + Expansion MRR) ÷ (Churned MRR + Contraction MRR) Net New MRR = New MRR + Expansion MRR − Churned MRR − Contraction MRR Target: Quick Ratio > 4 for healthy SaaS growth
Result: Quick Ratio = 5.42
With $50K new MRR and $15K expansion MRR on the addition side, and $8K churned plus $4K contraction on the loss side, the quick ratio is ($50K + $15K) ÷ ($8K + $4K) = $65K ÷ $12K = 5.42. This is excellent — the company adds $5.42 for every $1 lost. Net new MRR is $53,000.
The SaaS quick ratio is best understood through an MRR waterfall, which shows the starting MRR, additions (new + expansion), subtractions (churn + contraction), and ending MRR. The quick ratio is simply the ratio of total additions to total subtractions. A balanced waterfall where additions far exceed subtractions indicates sustainable growth.
Raw MRR growth can be deceptive. A company adding $100K in new MRR while losing $80K to churn has the same net growth ($20K) as one adding $25K while losing $5K. But the quick ratios are vastly different: 1.25 vs 5.0. The second company is building on much more stable foundation and will scale more efficiently.
Early-stage companies (pre-$1M ARR) often have quick ratios above 10 simply because churn hasn't had time to accumulate. Growth-stage companies ($1–10M ARR) typically see ratios of 3–6. Mature SaaS ($50M+ ARR) maintaining a ratio above 4 is exceptional. The benchmark should account for stage and scale.
A quick ratio above 4.0 is considered healthy, meaning you add $4 in new revenue for every $1 lost. Top SaaS companies achieve ratios of 5–10+. Below 1.0 means you're shrinking. Between 1 and 4-ish, you're growing but may be overly dependent on new customer acquisition to offset churn.
They're completely different metrics. The financial quick ratio is an accounting liquidity metric (liquid assets / current liabilities). The SaaS quick ratio is a revenue growth quality metric (revenue additions / revenue losses). They share the name "quick ratio" but measure entirely different things.
There are two approaches: increase the numerator (more new customers, better expansion/upsells) or decrease the denominator (reduce churn and contraction). Reducing churn is often more impactful because it simultaneously improves retention rates, customer lifetime value, and the quick ratio.
There's no strict standard, but most practitioners include reactivation MRR in the "new" bucket since it represents revenue being added back. The key is consistency in how you define and track each component. Document your definitions so comparisons over time are valid.
Yes. A very early-stage company with little churn will have an inflated quick ratio that will naturally decline as the customer base matures. Also, a company with massive new customer acquisition can mask terrible retention. Always look at the absolute MRR numbers alongside the ratio.
Monthly is the most common cadence since MRR is a monthly metric. Some companies also track a rolling three-month average to smooth volatility. Quarterly snapshots are helpful for board reporting, but monthly tracking is essential for operational decision-making.