3 Warren Buffett ratios that could help you retire a millionaire

Edward Sheldon reveals three key financial ratios that the greatest investor of all time, Warren Buffett, uses regularly.

The content of this article was relevant at the time of publishing. Circumstances change continuously and caution should therefore be exercised when relying upon any content contained within this article.

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More.

Warren Buffett is the greatest investor of all time. A $10,000 investment in his company, Berkshire Hathaway, back in 1965, would now be worth somewhere around $90m. Clearly, his process is far superior to that of your average investor.

Today, I’m going to give you an insight into Buffett’s investment process and share with you three key financial ratios that he places a strong focus on. Incorporating these ratios into your own investment analysis could potentially boost your long-term investment returns significantly.

Low debt

One of the first things Warren Buffett looks for in a stock is low debt as this gives a company flexibility. An analogy is to think of a small speedboat versus a cruise ship. If both of these boats are travelling in the same direction at the same speed and suddenly come upon an obstacle, the speedboat is likely to be significantly more manoeuvrable. The cruise ship would be slow to react and would have difficulty avoiding the obstacle.

It’s the same in business. A company with low debt has the flexibility to navigate the ever-changing business environment. In contrast, a company with high debt can get into trouble when business conditions are tough.

To analyse a company’s debt, Buffett uses the debt-to-equity ratio. This is how it’s calculated.

Debt to equity = total liabilities/total equity

It’s not hard to calculate. You’ll find both total liabilities and total equity on a company’s balance sheet. Buffett likes to see a ratio of under 0.5 here. This helps him avoid companies that are likely to get into trouble during economic downturns.

Cash is king

Do you ever find yourself running out of cash at the end of the month? If the answer is yes, you’ll know that it makes life difficult. The same can be said for businesses. Cash is king. As a result, Buffett likes to focus on companies that have enough cash to comfortably cover their short-term liabilities.

Here, Buffett uses the current ratio. It’s calculated by dividing current assets (cash and other assets that are expected to be turned into cash within 12 months) by current liabilities (liabilities that need to be paid within 12 months.)

Current ratio = current assets/current liabilities

You’ll find both current assets and current liabilities listed on a company’s balance sheet. Buffett likes to see a current ratio of at least 1.5. In other words, if a company always receives more cash than it pays out, it can always meet its short-term debt obligations in time.

Strong returns

Lastly, another key ratio that Buffett focuses on is return on equity (ROE). This ratio basically demonstrates the ability of management to generate a decent return on your money. The formula is: 

Return on equity = net income/total equity

You’ll find net income on a company’s income statement. Total equity is found on the balance sheet.

Buffett likes to see a consistent ROE ratio of at least 8% over a 10-year period. This indicates that the company is consistently making a decent profit with the earnings that management retains.

So there are three key ratios that the greatest investor of all time uses regularly. Analysing these ratios when making your own investment decisions could be a good move if you’re looking to generate big returns from the stock market over the long term. 

More on Investing Articles

Investing Articles

Where will Rolls-Royce shares go in 2026? Here’s what the experts say!

Rolls-Royce shares delivered a tremendous return for investors in 2025. Analysts expect next year to be positive, but slower.

Read more »

Emma Raducanu for Vodafone billboard animation at Piccadilly Circus, London
Investing Articles

Up 40% this year, can the Vodafone share price keep going?

Vodafone shareholders have been rewarded this year with a dividend increase on top of share price growth. Our writer weighs…

Read more »

Buffett at the BRK AGM
Investing Articles

Here’s why I like Tesco shares, but won’t be buying any!

Drawing inspiration from famed investor Warren Buffett's approach, our writer explains why Tesco shares aren't on his shopping list.

Read more »

Investing For Beginners

If the HSBC share price can clear these hurdles, it could fly in 2026

After a fantastic year, Jon Smith points out some of the potential road bumps for the HSBC share price, including…

Read more »

Investing Articles

I’m thrilled I bought Rolls-Royce shares in 2023. Will I buy more in 2026?

Rolls-Royce has become a superior company, with rising profits, buybacks, and shares now paying a dividend. So is the FTSE…

Read more »

Warren Buffett at a Berkshire Hathaway AGM
Investing Articles

With Warren Buffett about to step down, what can investors learn?

Legendary investor Warren Buffett is about to hand over the reins of Berkshire Hathaway after decades in charge. How might…

Read more »

Black woman using smartphone at home, watching stock charts.
Investing Articles

I asked ChatGPT for the perfect passive income ISA and it said…

Which 10 passive income stocks did the world's most popular artificial intelligence chatbot pick for a Stocks and Shares ISA?

Read more »

Tŵr Mawr lighthouse (meaning "great tower" in Welsh), on Ynys Llanddwyn on Anglesey, Wales, marks the western entrance to the Menai Strait.
Investing Articles

How I generated a 66.6% return in my SIPP in 2025 (and my strategy for 2026!)

By focusing on undervalued, high-potential stocks, this writer achieved market-beating SIPP returns in 2025 – here’s how he aims to…

Read more »