Working Capital Calculator
Calculate your business working capital and current ratio. See if you have enough short-term assets to cover short-term liabilities.
$50,000 of current assets against $30,000 of current liabilities gives working capital of $20,000 and a current ratio of 1.67 — comfortably inside the 1.5 to 3.0 range most analysts treat as healthy.
Calculator
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What Is Working Capital?
Working capital is the difference between current assets and current liabilities:
Working Capital = Current Assets - Current Liabilities
The current ratio (assets/liabilities) should ideally be above 1.5.
Worked example
Using the defaults — $50,000 of current assets and $30,000 of current liabilities:
Current ratio = Current assets ÷ Current liabilities
Total the current assets. Cash, accounts receivable, inventory and prepaid expenses are all convertible to cash within twelve months. Here they total $50,000.
Total the current liabilities. Accounts payable, accrued wages, short-term borrowing and the current portion of long-term debt are all due within twelve months. Here they total $30,000.
Subtract to get the working capital. $50,000 − $30,000 = $20,000. This is the cash buffer available to fund day-to-day operations without new borrowing.
Divide to get the ratio. $50,000 ÷ $30,000 = 1.67. For every dollar of short-term obligation, the business holds $1.67 of short-term assets. A ratio below 1.0 means current liabilities exceed current assets, which is the classic warning sign of a liquidity squeeze.
Enter 50000 and 30000 above to reproduce the $20,000 and 1.67 figures. The ratio is a snapshot at one date; businesses with seasonal revenue need to check it at the tightest point of the cycle, not the average.
What the current ratio tells you
The same $30,000 of liabilities against different asset positions, with the operating implication of each.
| Current assets | Working capital | Current ratio | Assessment | Implication |
|---|---|---|---|---|
| $18,000 | −$12,000 | 0.60 | Critical | Cannot cover short-term obligations |
| $27,000 | −$3,000 | 0.90 | Warning | Dependent on new credit or fast collections |
| $30,000 | $0 | 1.00 | Breakeven | No buffer at all; one late payer is a crisis |
| $50,000 (default) | $20,000 | 1.67 | Healthy | Comfortable operating cushion |
| $90,000 | $60,000 | 3.00 | Conservative | Possible idle cash or slow-moving inventory |
A ratio below 1.0 does not automatically mean insolvency — businesses with strong, fast receivables can operate below 1.0. But it removes the buffer that absorbs a late payment, a lost customer, or a supplier demanding faster terms.
Common mistakes with this calculation
- Counting slow inventory as fully current. Inventory is only worth its book value if it can be sold within the year at the recorded price. A retailer with six months of dead stock has a current ratio that looks fine on paper and no cash to pay wages. Use the quick ratio — current assets minus inventory, divided by current liabilities — to test it.
- Pushing working capital too low in pursuit of efficiency. Stretching supplier payments and running inventory thin improves the ratio and the cash-conversion cycle. It also removes the buffer that absorbs a demand shock. Efficiency and resilience trade against each other, and the right balance depends on how volatile your revenue is.
- Ignoring seasonality. A business that builds inventory ahead of a peak season will always look worse at that point in the cycle. Compare the ratio with the same date in prior years, not with the prior quarter.
- Treating a high ratio as automatically good. A ratio of 3.0 or above often means cash is sitting idle, receivables are not being collected, or inventory is not moving. Capital tied up in working capital is capital not invested in growth. Both extremes are problems.
When this calculator does not apply
- It takes two aggregate figures. Different businesses need the components — receivables ageing, inventory turns, payables terms — analysed separately.
- It is a point-in-time snapshot and says nothing about the trend or the seasonality of the cycle.
- It treats all current assets as equally liquid, which overstates a business holding slow inventory or doubtful receivables.
- It does not model the cash-conversion cycle, which is the better predictor of whether a growing business will run out of money.
- It cannot account for undrawn credit lines, which are a real source of short-term liquidity not shown on the balance sheet.
Frequently Asked Questions
What is a good current ratio?
A current ratio of 1.5-3 is generally considered healthy. Below 1 means you cannot cover short-term obligations, which is a red flag.
Can working capital be too high?
Yes. Excessive working capital may mean you are not investing in growth opportunities or are holding too much inventory. The optimal level varies by industry.
Sources & Methodology
This calculator uses standard financial formulas. See our methodology page for the full formula derivation.
- Financial Statements and Analysis US Securities and Exchange Commission
- Small Business Financial Management US Small Business Administration
- Business Planning and Financial Projections US Small Business Administration
- Financial Accounts of the United States Federal Reserve
- Small Business Facts SBA Office of Advocacy
Last reviewed .
Key takeaways
- $50,000 of current assets against $30,000 of liabilities gives $20,000 of working capital and a 1.67 current ratio.
- A ratio between 1.5 and 3.0 is normally treated as healthy; below 1.0 is a warning sign.
- Working capital is a snapshot. Seasonal businesses must measure it at the tightest point.
- Inventory is the least trustworthy current asset. Use the quick ratio to test liquidity excluding it.
- A very high ratio usually means idle cash, slow collections, or unsold stock.