What you will learn
- Calculate the current ratio and the quick ratio
- Explain why the quick ratio is a stricter test than the current ratio
- Interpret what a ratio above or below 1 suggests
- See how liquidity completes the four-lens ratio toolkit
You have measured profitability, efficiency, and leverage. Now comes the fourth lens, liquidity, meaning the ability to pay the bills that come due soon. The current and quick ratios are the two classic gauges, and they build directly on the current assets and current liabilities you learned to spot on the balance sheet. This is the same liquidity idea from Unit 1, now applied to a whole company's short-term health.
Liquidity ratios: current ratio and quick ratio (The Organic Chemistry Tutor)
A clear, worked-example walkthrough of both ratios. Follow the arithmetic and then try the calculations below yourself.
The current ratio
The current ratio is current assets divided by current liabilities. It answers a blunt question: does the company have enough short-term resources to cover its short-term obligations? A current ratio above 1 means current assets exceed current liabilities, which is generally a sign of healthy short-term liquidity. A ratio below 1 can signal possible trouble meeting near-term bills.
Key terms
- Current ratio
- Current assets divided by current liabilities. A basic test of short-term liquidity.
- Quick ratio (acid test)
- Current assets minus inventory, divided by current liabilities. A stricter liquidity test.
- Liquidity (for a company)
- The ability to pay obligations that are coming due soon.
Calculate the current ratio
A company has current assets of 400,000 dollars and current liabilities of 200,000 dollars. What is its current ratio?
The quick ratio (acid test)
The quick ratio is stricter. It removes inventory from current assets before dividing by current liabilities. The reasoning is that inventory can be slow or hard to turn into cash, especially in a crunch when you might have to dump it at a discount. By stripping out the least liquid current asset, the quick ratio gives a more conservative read on whether a company could pay its bills quickly without relying on selling its stock of goods.
Current ratio versus quick ratio
A company has current assets of 400,000 dollars, of which 150,000 is inventory, and current liabilities of 200,000 dollars. Find both ratios.
- Current ratio. 400,000 divided by 200,000 equals 2.0.
- Remove inventory for the quick ratio. Current assets minus inventory is 400,000 minus 150,000, which is 250,000.
- Quick ratio. 250,000 divided by 200,000 equals 1.25.
Why it matters: The gap between 2.0 and 1.25 shows how much of the company's short-term cushion depends on selling inventory.
Calculate the quick ratio
A company has current assets of 600,000 dollars, including 200,000 of inventory, and current liabilities of 400,000 dollars. What is its quick ratio?
The current ratio asks if you can pay your bills. The quick ratio asks if you can pay them without first selling the stockroom.
Reading them sensibly
- Higher generally means safer, but a very high ratio can signal inefficiency, such as idle cash or excess inventory that could be put to better use.
- Acceptable levels vary by industry. Businesses that sell for cash and turn inventory quickly can safely run lower ratios.
- A large gap between the current and quick ratios reveals heavy reliance on inventory, which matters most where inventory can go out of date.
Liquidity ratios explained (Financial Interest)
A second beginner overview covering current, quick, and cash ratios. Watch for how each one gets progressively stricter.
Is a current ratio of 0.8 a problem?
A company reports a current ratio of 0.8, meaning current liabilities exceed current assets. On its own, what does this suggest, and what would you check next?
A current ratio below 1 is a caution sign about short-term liquidity, but it must be read alongside the business model, cash flow, and industry norms.Where this fits
Liquidity ratios complete the four-lens toolkit you have been assembling: profitability from margins and returns, valuation from multiples, leverage from debt-to-equity, and now liquidity. In the capstone teardown at the end of this unit, you will use all four together, because no single ratio judges a company. They only make sense as a panel, each one covering a blind spot of the others.
That is the full set of ratios. Before the capstone, we spend three lessons on how to actually find and judge this information in the wild, starting with the company's own annual report, the 10-K.