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Graham Number Calculator

Calculate fair stock value instantly with our Graham Number Calculator. Use EPS & BVPS to find undervalued stocks and make smarter investment decisions fast.

Net income ÷ total shares outstanding (must be positive)
$
(Total Equity − Preferred Equity) ÷ shares outstanding
Optional — Current Stock Price & Valuation Check
$
Enables Margin of Safety, P/E & P/B ratio checks
Where to find these values:
EPS: Income Statement / Stock screener
BVPS: Balance Sheet → Shareholders' Equity ÷ Shares
Price: Stock exchange / finance portal (live quote)
Formula: Graham Number = √(22.5 × EPS × BVPS)  |  Constant 22.5 = Graham's max P/E (15) × max P/B (1.5)  |  Developed by Benjamin Graham · "The Intelligent Investor"

Investing in the stock market can feel confusing. Many people want to know if a stock is cheap or expensive. That’s where the Graham Number calculator helps. It gives you a simple and trusted way to find the fair value of a stock.

The Graham Number comes from the ideas of Benjamin Graham, who is known as the father of value investing. His formula helps investors avoid overpaying and find strong companies at a good price.

Our online tool makes this process fast and easy. You just enter a few values, and the calculator shows the result instantly.

What is the Graham Number?

The Graham Number is a formula used to estimate the maximum fair price of a stock. It combines a company’s earnings and its book value to give a safe investment price.

This method focuses on safety. It helps investors avoid risky stocks and choose companies with solid financial strength.

In simple words, it tells you how much you should pay for a stock without taking too much risk.

Graham Number Formula

The formula is simple and widely used in value investing:

Graham Number = √(22.5 × EPS × BVPS)

Where:

  • EPS means Earnings Per Share
  • BVPS means Book Value Per Share
  • 22.5 is a constant based on Graham’s rules (P/E ratio of 15 and P/B ratio of 1.5)

How to Calculate Graham Number?

You can calculate it manually, but using a Graham Number calculator saves time and avoids mistakes.

  1. First, find the company’s EPS from its income statement.
  2. Next, get the BVPS from its balance sheet.
  3. Then multiply EPS and BVPS with 22.5.
  4. Finally, take the square root of the result.

This gives you the Graham Number, which is the estimated fair value of the stock.

How to Use Online Graham Number Calculator

Using our calculator is very simple and beginner-friendly.

  1. First, enter the Earnings Per Share (EPS) of the company.
  2. Then, enter the Book Value Per Share (BVPS).
  3. If you want, you can also enter the current stock price.
  4. After that, click the calculate button.

The tool will instantly show the Graham Number and valuation result.

This helps you quickly decide if a stock is undervalued or overvalued.

Example Graham Number Calculation

Let’s understand with a simple example.

Assume a company has an EPS of 5 and a BVPS of 20.

Now apply the formula:

Graham Number = √(22.5 × 5 × 20)

Graham Number = √(2250)

Graham Number = 47.43

This means the fair value of the stock is 47.43.

If the current market price is lower than this value, the stock may be undervalued. If it is higher, the stock may be overpriced.

What is a Good Graham Ratio?

The Graham Ratio compares the stock price with the Graham Number.

Graham Ratio = Stock Price ÷ Graham Number

If the ratio is less than 1, the stock is considered undervalued.

If the ratio is close to 1, the stock is fairly valued.

If the ratio is greater than 1, the stock may be overvalued.

A good Graham ratio is usually below 1, as it shows the stock is trading below its fair value.

Why Use a Graham Number Calculator?

A Graham Number calculator helps investors make smarter decisions. It removes guesswork and gives a clear picture of stock value.

It is especially useful for beginners who want a simple method to analyze stocks. It also helps experienced investors quickly screen undervalued opportunities.

Using this tool regularly can improve your investment strategy and reduce risk.

Final Verdict

The Graham Number is one of the safest and simplest ways to evaluate stocks. It focuses on both earnings and asset value, making it a balanced approach.

With our online Graham Number calculator, you can instantly calculate the fair value and make better investment decisions. It is fast, accurate, and easy to use.

If you want to invest wisely and avoid overpaying, this tool is a must-have.

FAQs

What is the Graham Number in simple terms?

It is a formula that helps you find the fair price of a stock based on its earnings and book value.

Is the Graham Number accurate?

It is a reliable method for value investing, but it should be used along with other financial analysis.

Can I use the Graham Number for all stocks?

It works best for stable and profitable companies. It may not be suitable for startups or companies with negative earnings.

What happens if EPS is negative?

The Graham Number cannot be calculated because the formula requires positive earnings.

Is a lower Graham Ratio better?

Yes, a lower ratio means the stock is cheaper compared to its fair value.