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Quick Ratio (Acid Test) Calculator

Calculate the quick ratio - a stricter liquidity test that excludes inventory from current assets.

Result

Quick Ratio
1.07 : 1

About the Quick Ratio Calculator

The quick ratio calculator tests whether a business could cover its current liabilities using only assets that convert to cash quickly, without counting on inventory sales. It is a stricter version of the current ratio used by lenders, creditors, and business owners to spot a company whose liquidity looks fine only because a large share of its current assets is sitting in a warehouse rather than a bank account. Enter current assets, inventory, and current liabilities to get an instant liquidity read.

How It Works

You provide three inputs: total current assets, the inventory portion of those assets, and total current liabilities. The calculator subtracts inventory from current assets to isolate the quick assets - cash, marketable securities, and receivables - then divides that figure by current liabilities. The result is expressed as a ratio, such as 1.07:1, showing how many dollars of quick assets exist for every dollar of short-term debt.

Quick Ratio = (Current Assets - Inventory) / Current Liabilities

Formula & Methodology

To calculate by hand, start with the current assets figure from a balance sheet, subtract the inventory line item, and divide by current liabilities. No rounding or adjustment is applied beyond the standard two-decimal display, and the calculator does not add back or remove any other line items such as prepaid expenses, so the result reflects a straightforward assets-minus-inventory formula rather than the alternative cash-plus-securities-plus-receivables version some textbooks use.

Examples

Retail supplier

A wholesale distributor reports $250,000 in current assets, $90,000 of which is inventory, against $150,000 in current liabilities. Quick assets come to $160,000, giving a quick ratio of 1.07:1.

Inventory-heavy shop

A furniture retailer holds $180,000 in current assets, with $140,000 tied up in unsold inventory, against $100,000 in current liabilities. Quick assets fall to just $40,000, producing a quick ratio of 0.40:1.

Advantages

  • Strips out the least liquid current asset (inventory) so the result isn't inflated by stock that may take months to sell
  • Gives lenders and business owners a fast solvency check using only three balance sheet figures
  • Flags businesses that look financially fine on the current ratio but would struggle to pay obligations quickly

Common Mistakes

  • Using total assets instead of current assets, which overstates liquidity by including long-term items like equipment or property
  • Forgetting to subtract inventory at all, which just reproduces the current ratio rather than the stricter quick ratio
  • Treating a low quick ratio as automatically alarming without considering the industry, since businesses with fast inventory turnover can operate safely on a lower ratio than one with slow-moving stock

Edge Cases to Watch For

  • If current liabilities is zero or left blank, the calculator returns an error instead of a ratio, since dividing by zero is undefined.
  • If inventory exceeds current assets, quick assets becomes negative, producing a ratio below zero, which signals a business with essentially no liquid buffer beyond inventory.
  • The calculator only excludes inventory from current assets; it does not separately exclude prepaid expenses, so businesses with large prepaid balances may want to interpret the result with that in mind.

Common Use Cases

  • Small business owners preparing for a loan application who want to anticipate how a lender will view their balance sheet
  • Bookkeepers and accountants running a quick liquidity check between full financial statement reviews
  • Investors or creditors comparing the short-term financial cushion of two companies in the same industry
Written & fact-checked by the Calculateus TeamLast updated August 5, 2026How we verify our formulas

Frequently asked questions

Why exclude inventory from the quick ratio?

Inventory can be slow or uncertain to convert to cash (it has to be sold first, and might not sell at expected prices), so the quick ratio strips it out to test whether a business could cover short-term liabilities using only its most liquid assets - cash, marketable securities, and receivables.

Conclusion

The quick ratio gives a more conservative view of liquidity than the current ratio by removing inventory from the equation. A result above 1:1 generally suggests a business could meet its short-term obligations without selling stock, while a lower figure is worth investigating alongside inventory turnover and cash flow trends.