Quick answer
Working Capital = Current Assets − Current Liabilities. Current Ratio = Current Assets / Current Liabilities. Example: $500K assets − $300K liabilities = $200K working capital, 1.67x current ratio. A ratio of 1.5–3.0x is healthy for most businesses.
How to use this calculator
Enter Total Current Assets and Total Current Liabilities from the balance sheet. Current items are those expected to be converted to cash or settled within 12 months. The calculator instantly shows working capital in currency, the current ratio, and a liquidity interpretation. Use figures from the same balance sheet date for accuracy.
Working capital formula
Working capital measures the short-term net liquidity of a business:
$$\text{Working Capital} = \text{Current Assets} - \text{Current Liabilities}$$
Current assets typically include: cash and equivalents, short-term investments, accounts receivable, inventory, and prepaid expenses.
Current liabilities typically include: accounts payable, short-term debt (due within 12 months), accrued liabilities, deferred revenue, and current portion of long-term debt.
The Current Ratio expresses the same relationship as a dimensionless multiple — better for cross-company comparison:
$$\text{Current Ratio} = \frac{\text{Current Assets}}{\text{Current Liabilities}}$$
The Quick Ratio (Acid-Test Ratio) is a stricter measure that excludes inventory, which may be difficult to liquidate quickly:
$$\text{Quick Ratio} = \frac{\text{Cash} + \text{Receivables}}{\text{Current Liabilities}}$$
Interpreting the current ratio
| Current Ratio | Interpretation | Risk Level |
|---|---|---|
| < 1.0 | Current liabilities exceed current assets — potential liquidity concern | High (unless structurally intentional) |
| 1.0 – 1.5 | Adequate but limited buffer; tight cash management required | Moderate |
| 1.5 – 3.0 | Healthy — sufficient liquidity without excess idle capital | Low |
| > 3.0 | Strong liquidity; possibly inefficient use of capital | Very Low (but watch for excess inventory) |
Worked examples
| Business | Current Assets | Current Liabilities | Working Capital | Current Ratio |
|---|---|---|---|---|
| Manufacturing SME | $1,200,000 | $600,000 | $600,000 | 2.0x |
| Retail chain | $800,000 | $900,000 | -$100,000 | 0.89x |
| SaaS startup | $3,500,000 | $500,000 | $3,000,000 | 7.0x |
| Construction firm | $5,000,000 | $3,200,000 | $1,800,000 | 1.56x |
| Restaurant group | $400,000 | $600,000 | -$200,000 | 0.67x |
Industry benchmarks
Optimal working capital levels vary significantly by industry due to differences in inventory cycles, payment terms, and business models:
| Industry | Typical Current Ratio | Notes |
|---|---|---|
| Technology / SaaS | 2.0x – 5.0x | Often cash-rich; low inventory |
| Manufacturing | 1.5x – 2.5x | Significant inventory holdings |
| Retail | 0.5x – 1.5x | Pays suppliers after collecting from customers |
| Construction | 1.3x – 2.0x | Long project cycles; large receivables |
| Healthcare | 1.5x – 2.5x | Insurance receivables create long collection cycles |
| Restaurants / Hospitality | 0.3x – 0.8x | Collect cash instantly; pay suppliers on credit |
Negative working capital — not always bad
A current ratio below 1.0 (negative working capital) is not automatically a problem. Two common scenarios:
- Efficient business models: Supermarkets, fast food chains, and subscription businesses collect cash before paying suppliers. They operate comfortably with negative working capital because their cash conversion cycle is naturally negative — money comes in before it goes out.
- Genuine distress: A manufacturing company with deteriorating accounts receivable, unpaid invoices to suppliers, and a declining cash balance running negative working capital is a different story. Watch for trends: if working capital is worsening quarter-over-quarter, investigate the underlying cause.
The trend matters as much as the absolute level. A stable current ratio of 0.9x can be healthier than a declining ratio of 1.8x → 1.5x → 1.2x.
Frequently asked questions
What is working capital?
Working capital = Current Assets − Current Liabilities. It measures short-term liquidity — the buffer available to fund operations, pay suppliers, and cover unexpected expenses. Positive working capital provides financial flexibility; negative working capital requires careful cash management.
What counts as current assets and current liabilities?
Current assets: cash, short-term investments (maturing within 12 months), accounts receivable, inventory, prepaid expenses. Current liabilities: accounts payable, short-term loans, accrued wages and expenses, taxes payable, current portion of long-term debt, deferred revenue due within 12 months.
What is a good current ratio?
1.5–3.0x is healthy for most industries. Below 1.0x signals potential liquidity risk (unless structurally normal for the industry, like retail). Above 3.0x may indicate excess idle capital. Always compare against industry peers.
What is the difference between current ratio and quick ratio?
The current ratio includes all current assets including inventory. The quick ratio (acid-test) excludes inventory and prepaid expenses — it measures whether a company can meet short-term obligations using only its most liquid assets. For a manufacturer with slow-moving inventory, the quick ratio is a more conservative liquidity test.
How does working capital relate to cash flow?
Changes in working capital directly affect operating cash flow. An increase in working capital (e.g., receivables growing faster than payables) consumes cash. A decrease in working capital (e.g., collecting receivables faster, stretching payables) releases cash. This is why profitable companies can face cash flow problems if their working capital grows faster than their earnings.