Liquidity Ratios Cheat Sheet: Formulas, Benchmarks & What to Watch
Core Liquidity Ratios
| Ratio | Formula | Healthy Range | What It Measures |
|---|---|---|---|
| Current Ratio | Current Assets / Current Liabilities | 1.5x – 2.5x | General short-term solvency. Below 1.0x means current liabilities exceed current assets. |
| Quick Ratio (Acid Test) | (Current Assets − Inventory) / Current Liabilities | 1.0x – 1.5x | Immediate liquidity. Strips out inventory, which may be slow to convert to cash. |
| Cash Ratio | (Cash + Cash Equivalents) / Current Liabilities | 0.5x – 1.0x | Most conservative measure. Only counts the most liquid assets. |
| Net Working Capital | Current Assets − Current Liabilities | Positive | Dollar amount of short-term cushion. Negative working capital is a red flag for most industries. |
Cash Conversion Metrics
| Metric | Formula | What It Tells You |
|---|---|---|
| Days Sales Outstanding (DSO) | (Accounts Receivable / Revenue) × 365 | Average days to collect from customers |
| Days Inventory Outstanding (DIO) | (Inventory / COGS) × 365 | Average days inventory sits before it’s sold |
| Days Payable Outstanding (DPO) | (Accounts Payable / COGS) × 365 | Average days to pay suppliers |
| Cash Conversion Cycle (CCC) | DSO + DIO − DPO | Total days to convert investment into cash. Lower is better. |
Liquidity by Industry
| Industry | Typical Current Ratio | Notes |
|---|---|---|
| Technology / SaaS | 2.0x – 4.0x | High cash balances, subscription revenue, minimal inventory |
| Retail | 1.0x – 1.5x | Inventory-heavy; quick ratio matters more here |
| Utilities | 0.8x – 1.2x | Regulated cash flows allow lower liquidity ratios |
| Manufacturing | 1.5x – 2.5x | Significant inventory and receivables |
| Banks | N/A | Banks use different metrics (LCR, NSFR) due to their unique balance sheets |
Current Ratio vs. Quick Ratio
| Feature | Current Ratio | Quick Ratio |
|---|---|---|
| Includes inventory? | Yes | No |
| More conservative? | No | Yes |
| Best for | General solvency check | Companies with slow-moving inventory |
| Limitation | Inventory may be illiquid or obsolete | Ignores inventory that could be liquidated |
Red Flags in Liquidity Analysis
A current ratio below 1.0x in a non-utility business means the company can’t cover near-term obligations with current assets. A declining cash conversion cycle trend is positive, but a rising DSO combined with falling revenue suggests customers are struggling to pay. Negative working capital is normal for companies like Amazon (they collect before they pay suppliers) but dangerous for capital-intensive businesses.
Key Takeaways
- Current ratio, quick ratio, and cash ratio form a hierarchy from least to most conservative.
- The cash conversion cycle (CCC) measures operational liquidity — how fast cash moves through the business.
- Always compare liquidity ratios within the same industry; “normal” ranges vary widely.
- Negative working capital is a red flag for most companies but normal for businesses with strong supplier leverage.
- Declining liquidity combined with rising debt is the classic pre-distress signal.
Frequently Asked Questions
What is a good liquidity ratio?
For the current ratio, 1.5x–2.5x is generally healthy. For the quick ratio, above 1.0x means the company can pay short-term bills without selling inventory. But industry context matters — utilities safely operate below 1.0x while tech companies often sit above 3.0x.
What happens when a company has poor liquidity?
It may need to sell assets at a discount, draw on credit lines, issue dilutive equity, or in the worst case, default on obligations. Poor liquidity also limits a company’s ability to invest in growth or weather downturns.
Is a very high current ratio always good?
Not necessarily. An extremely high current ratio (above 3.0x) may signal that the company is hoarding cash inefficiently or carrying too much inventory. Capital sitting idle earns suboptimal returns for shareholders.
How does the cash conversion cycle work?
CCC = DSO + DIO − DPO. It measures the number of days between paying for raw materials and collecting cash from customers. A shorter cycle means the business generates cash faster. Negative CCC (like Amazon) means the company collects from customers before paying suppliers.
Why do banks use different liquidity metrics?
Bank balance sheets are fundamentally different — their “inventory” is loans and their “revenue” is net interest margin. Regulators use the Liquidity Coverage Ratio (LCR) and Net Stable Funding Ratio (NSFR) under Basel III rules instead.