SaaS Quick Ratio Calculator — Growth Efficiency, Not Liquidity

Background.

Two completely different metrics are called the quick ratio, and this page computes the one that has nothing to do with your balance sheet. The accounting quick ratio — the acid-test ratio — divides cash, marketable securities and receivables by current liabilities to measure whether a company can meet its short-term obligations. The SaaS quick ratio divides the recurring revenue a company added in a period by the recurring revenue it lost, and measures how efficiently it grows. If you arrived here looking for the liquidity ratio, Quanta's acid-test quick ratio calculator is the page you want; if you want to know how much of your new sales effort is going into replacing customers you already had, stay here.

The formula is (new MRR + expansion MRR) ÷ (churned MRR + contraction MRR). A company adding $30,000 of new MRR and $12,000 of expansion while losing $8,000 to cancellations and $4,000 to downgrades has a quick ratio of $42,000 ÷ $12,000 = 3.5: it gains three and a half dollars of recurring revenue for every dollar it loses. Net new MRR that period is $30,000, and two thirds of the losses — 66.67% — came from customers leaving outright rather than shrinking.

The metric is attributed to Mamoon Hamid, then at Social Capital, and the published Social Capital source is Jonathan Hsu's "Diligence at Social Capital Part 2: Accounting for Revenue Growth", which sets out the growth-accounting framework the ratio sits inside. That post also supplies the two numbers everyone quotes: "For enterprise SaaS companies, we prefer to invest in companies with a quick ratio greater than 4", and "If you have a quick ratio of <2 then your churn is probably too high". Read those for what they are — one venture firm's stated investment preferences from its own diligence process, not an industry standard and not a threshold derived from a published dataset. This calculator reports where you sit against them and says whose numbers they are.

What makes the ratio worth computing is that it is scale-free and it does not need your opening revenue base. Net revenue retention and gross revenue retention both require the MRR you started the period with, and both are dominated by what happens to the existing book. The quick ratio ignores the base entirely and compares only the flows, which means a $400,000 ARR company and a $400 million ARR company with the same efficiency produce the same number. That is its strength and its weakness in one: a ratio of 8 achieved by adding $80,000 while losing $10,000 is a genuinely different situation from one achieved by adding $8,000 while losing $1,000, and the ratio alone cannot tell them apart. This page prints net new MRR beside the ratio for exactly that reason — a high ratio on a very small loss base is arithmetic, not performance.

One structural caution belongs with the number rather than behind it. The ratio treats a dollar of expansion revenue as interchangeable with a dollar of new revenue, and a dollar of contraction as interchangeable with a dollar of churn. They are not. Expansion revenue is usually far cheaper to win than new logos and is a signal that the product is working; contraction usually precedes churn rather than substituting for it. A company whose ratio is held up entirely by expansion while new-logo acquisition has stalled looks identical to a healthy one on this metric. Check the split before you read the total — the share of losses coming from full cancellations, reported here, is the first place to look.

What is saas quick ratio calculator?

The SaaS quick ratio is a growth-efficiency metric equal to the recurring revenue a company gained in a period divided by the recurring revenue it lost in the same period. The numerator is new MRR — revenue from customers who were not customers at the start — plus expansion MRR from existing customers upgrading or adding seats. The denominator is churned MRR from customers who cancelled entirely plus contraction MRR from customers who downgraded but stayed. A ratio of 1 means the company exactly replaced what it lost and grew not at all; a ratio below 1 means the recurring base shrank. The metric is attributed to Mamoon Hamid of Social Capital and appears in the firm's published growth-accounting framework, which decomposes recurring revenue movements into new, resurrected, expansion, contraction and churned components. It is deliberately independent of the opening revenue base, which distinguishes it from net revenue retention and gross revenue retention: those measure what happened to an existing cohort, while the quick ratio compares only the gross flows. Because it has no base, it is scale-free — two companies of very different sizes with the same efficiency report the same ratio — and because it is a ratio, it says nothing about the dollar size of either flow. It is not a GAAP or IFRS measure and no standard-setter defines it. It shares a name with, but has no relationship to, the accounting quick ratio (acid-test ratio) used to assess short-term liquidity.

How to use this calculator.

1. 01Confirm you want this metric and not the accounting one. The acid-test quick ratio divides liquid assets by current liabilities and answers a solvency question; this ratio divides MRR gained by MRR lost and answers a growth-efficiency question. They share only a name.
2. 02Enter new MRR — recurring revenue from customers who were not customers at the start of the period. Use committed subscription revenue only; implementation fees and one-off services are not MRR.
3. 03Enter expansion MRR — recurring revenue added by existing customers through upgrades, seat additions or recurring add-ons.
4. 04Enter churned MRR — recurring revenue lost to customers who cancelled entirely — and contraction MRR, lost to customers who downgraded but stayed. Enter both as positive amounts; the calculator applies the direction.
5. 05Read the ratio together with net new MRR. The ratio tells you the efficiency; the dollar figure tells you whether it matters. A ratio of 8 on a $1,000 loss base is not the same achievement as a ratio of 8 on a $100,000 loss base.
6. 06Check the share of losses that came from full cancellations. Cancellations and downgrades demand different responses — one is a retention problem, the other is usually a packaging or value-realisation problem.
7. 07Use the same period length every time you compute it, and the same period for both numerator and denominator. Monthly is the convention; quarterly smooths noise for companies with lumpy enterprise renewals.

The formula.

The numerator sums the two ways recurring revenue arrives: new customers and expansion within existing ones. The denominator sums the two ways it leaves: full cancellation and downgrade. Dividing gives dollars gained per dollar lost. Net new MRR — the numerator minus the denominator — is reported alongside, because the ratio deliberately discards the scale of both flows and net new MRR is where that scale reappears. The share of losses coming from full cancellations splits the denominator so a retention problem can be told apart from a downgrade problem. All arithmetic is carried at full decimal precision and rounded only at the return boundary: the ratio and percentages to two decimal places, currency to two decimal places. The banded reading — below 1, below 2, below 4, and 4 or above — is evaluated against the ROUNDED ratio, so a raw 1.99995 that displays as 2.00 is read in the 2.00 band rather than contradicting the number shown. One input combination has no answer: if churned and contraction MRR are both zero the denominator is zero and the ratio is undefined. That is a real and enviable state, not an error in your data, so the calculator says so explicitly and points you at net new MRR for that period instead of returning an infinity.

A worked example.

Frequently asked questions.

References& sources.

1. [1]Hsu, J. "Diligence at Social Capital Part 2: Accounting for Revenue Growth." Social Capital. Primary published source for the firm's growth-accounting framework and for both thresholds quoted on this page: "For enterprise SaaS companies, we prefer to invest in companies with a quick ratio greater than 4" and "If you have a quick ratio of <2 then your churn is probably too high". The post credits Mamoon Hamid's presentation for the SaaS quick-ratio examples. Retrieved 29 July 2026; both quotes verified against the live post.
2. [2]Jordan, J., Hariharan, A., Chen, F., & Kasireddy, P. (21 August 2015). "16 Startup Metrics." Andreessen Horowitz. Independent second authority on what may enter the MRR components used here — ARR and MRR "should exclude one-time (non-recurring) fees and professional service fees", which governs the numerator and denominator of this ratio. Retrieved 29 July 2026; quote verified.
3. [3]Deeter, B. (2 October 2012). "The five accounting metrics for cloud companies." Bessemer Venture Partners Atlas. Independent corroboration of the recurring/non-recurring boundary and source of the CMRR forward view. Retrieved 29 July 2026.
4. [4]U.S. Securities and Exchange Commission (30 January 2020). Release No. 33-10751, "Commission Guidance on Management's Discussion and Analysis of Financial Condition and Results of Operations." Requires a registrant presenting an operating metric to disclose its definition and method of calculation — directly relevant given that two unrelated metrics are both called the quick ratio. sec.gov returns HTTP 403 to automated fetchers; release number, title and dates verified independently.