Quick Ratio Calculator

What is a Quick Ratio Calculator?

A Quick Ratio Calculator is a financial modeling tool used by SaaS founders and investors to measure the efficiency of a company’s growth. Unlike basic growth metrics that only look at new revenue, this calculator compares your revenue inflows (growth) against your revenue outflows (churn).

Popularized by venture capitalist Mamoon Hamid, the Quick Ratio is the ultimate “health check” for subscription businesses. It answers one critical question: For every dollar of revenue you lose to churn, how many dollars of new revenue are you adding?

Use our free Quick Ratio Calculator below to instantly determine if your startup is growing sustainably or just burning cash.

How to Use This Tool

To get an accurate score, you will need to input four specific Monthly Recurring Revenue (MRR) metrics.

(Note: If you primarily track yearly contracts, use our Annual Recurring Revenue (ARR) Calculator first to normalize your data, or convert deals using our Annual Contract Value (ACV) Calculator.

1. New MRR: Revenue from brand-new customers acquired this month.
2. Expansion MRR: Revenue from existing customers upgrading or buying add-ons.
3. Churn MRR: Revenue lost from customers who cancelled their subscriptions. (Need to calculate this first? Use our Churn Rate Calculator.
4. Contraction MRR: Revenue lost from existing customers who downgraded their plans.

Once you enter these figures, the Quick Ratio Calculator will compute your score and tell you if your growth is efficient.

The Math Behind the Calculator

While this tool automates the math, it is important to understand the formula being used. The Quick Ratio Calculatoruses the following equation:

Quick Ratio=Churned MRR+Contraction MRRNew MRR+Expansion MRR​

The numerator represents your Growth Power, while the denominator represents your Churn Drag.

Benchmarks: How to Read Your Results

After using the Quick Ratio Calculator, you will receive a number. Here is how investors interpret that score:

4.0 or Higher (Exceptional)

• Verdict: You are adding $4 for every $1 you lose.
• Takeaway: This is the gold standard for SaaS. Your business is highly efficient. You can safely pour money into sales and marketing because your “bucket” doesn’t leak. You should check your Return on Ad Spend (ROAS) Calculator to see if you can increase paid acquisition budgets.

2.0 to 4.0 (Good)

• Verdict: You are adding roughly $2 to $3 for every $1 you lose.
• Takeaway: This is healthy growth, but there is friction. You are growing, but you should invest in Customer Success strategies to improve retention before trying to scale further.

Less than 1.0 (Critical Warning)

• Verdict: You are losing revenue faster than you are gaining it.
• Takeaway: If the Quick Ratio Calculator shows a score below 1.0, you are shrinking. Immediate action is needed. You may also want to check your Burn Multiple Calculator to see how this inefficiency is impacting your cash runway.

Why “Net New MRR” Is Not Enough

Many founders ask: “Why do I need a Quick Ratio Calculator if I already track Net New MRR?”

Net New MRR tells you the volume of your growth. The Quick Ratio tells you the quality of your growth.

Imagine two companies that both added $10,000 in Net New MRR this month:

• Company A: Added $12,000, Lost $2,000. (Quick Ratio: 6.0)
• Company B: Added $100,000, Lost $90,000. (Quick Ratio: 1.1)

Both companies grew by the same amount ($10k), but Company B is churning through customers at an alarming rate. Without a Quick Ratio Calculator, Company B might think they are doing fine, when in reality, they are on the brink of failure.

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