Book Value per Share Calculator

Enter total shareholders' equity, shares outstanding, and an optional market price to calculate book value per share, the Price-to-Book ratio, and equity per 100-share lot.

Created by Luis GonzalezLast updated: June 16, 2026

How to Use This Calculator

1
Enter equity and shares
Input the company's total book value (shareholders' equity) and the number of common shares outstanding. Optionally enter the current market price per share for a Price-to-Book comparison.
2
Review your results
The calculator displays the Book Value per Share, Price-to-Book ratio, and equity per 100-share lot, along with insights on how the stock's market price compares to its net asset backing.

Example Calculation

An investor in 2026 is evaluating a manufacturing company with total shareholders' equity of $150,000,000, 10,000,000 shares outstanding, and a current market price of $22.00 per share.

Total Book Value ($)

$150,000,000

Shares Outstanding

10,000,000

Current Market Price ($)

$22.00

Results

Book Value per Share

$15.00

Price-to-Book Ratio

1.47x

Equity per 100 Shares

$1,500.00

Tips

Compare Against Market Price

A stock trading below its book value (P/B under 1.0x) may signal undervaluation. For example, if BVPS is $15.00 and the market price drops to $12.00, the P/B ratio falls to 0.80x, suggesting the market values the company below its net assets.

Track BVPS Over Time

Rising BVPS over several quarters usually means the company is retaining earnings and growing equity. If a company's BVPS grows from $15.00 to $18.00 over two years while shares stay constant, equity grew by $30,000,000.

Industry Context Matters

Banks and manufacturers often trade at 1-2x book value. A tech company with $15.00 BVPS might trade at $75.00 (5.0x P/B) because intangible assets and growth are not captured on the balance sheet.

Use as a Valuation Floor

Book value per share provides a liquidation floor. If BVPS is $15.00 and you buy at $22.00, you pay a $7.00 premium for future earnings. If you buy at $14.00, you get a $1.00 margin of safety below book value.

The Book Value per Share (BVPS) Calculator determines the net asset value behind each outstanding share of a company. BVPS equals total shareholders' equity divided by shares outstanding, giving investors a tangible measure of what each share is worth based on the balance sheet. In 2026, with elevated valuations across many sectors, comparing market price to book value remains one of the simplest screens for value investors.

The Formula

The core calculation is straightforward:

Book Value per Share = Total Shareholders' Equity / Shares Outstanding
Price-to-Book Ratio = Market Price per Share / Book Value per Share

Total shareholders' equity is found on the balance sheet as total assets minus total liabilities. Shares outstanding is the number of common shares currently issued and held by investors.

Metric	Formula	Example (Equity = $150M, Shares = 10M, Price = $22)
BVPS	Equity / Shares	$150,000,000 / 10,000,000 = $15.00
P/B Ratio	Price / BVPS	$22.00 / $15.00 = 1.47x
Equity per Lot	BVPS x 100	$15.00 x 100 = $1,500.00

Using BVPS for Valuation Decisions

An investor analyzing a manufacturing company with $150,000,000 in equity and 10,000,000 shares finds a BVPS of $15.00. With the stock trading at $22.00, the P/B ratio is 1.47x, meaning the market values the company at 47% above its net asset base. This premium reflects expected future earnings beyond what the balance sheet captures.

If the same company trades at $12.00 during a market downturn, the P/B falls to 0.80x. That signals the market is pricing the company below the value of its net assets, which historically has been a buy signal for value investors, provided the underlying business is sound.

💡 After calculating book value, estimate your potential return using our ROI Calculator to see how buying at a discount to book value could affect long-term gains.

Market Context and P/B Benchmarks

Price-to-Book ratios vary widely by industry. Banks and insurers typically trade between 1.0x and 2.0x book value. Industrial manufacturers often sit at 1.5x to 3.0x. High-growth technology companies may trade at 5x to 15x because their value comes from intellectual property, network effects, and future cash flows rather than tangible assets on the balance sheet.

During bear markets, many stocks fall below book value. In the 2008 financial crisis, major banks traded at 0.3x to 0.5x book. Understanding where a company's P/B sits relative to its industry average and historical range is essential for making informed valuation judgments in 2026 and beyond.

Frequently Asked Questions

What does book value per share tell investors?

Book value per share (BVPS) shows the net asset value backing each share of stock. It equals total shareholders' equity divided by shares outstanding. For example, $150,000,000 in equity with 10,000,000 shares gives a BVPS of $15.00, meaning each share is backed by $15 in net assets.

Is book value per share the same as market price?

No. BVPS is based on accounting values (assets minus liabilities), while market price reflects investor expectations about future earnings. A tech company might have a BVPS of $15.00 but trade at $75.00 because the market values its growth potential, patents, and brand far beyond balance-sheet figures.

What is a good Price-to-Book ratio?

It depends on the industry. Banks and utilities often trade at 1-2x book value. Growth companies may trade at 5-10x or higher. A P/B below 1.0x can signal undervaluation or that investors expect the company's assets to decline in value.

How does share buyback affect BVPS?

When a company buys back shares, the number of shares outstanding decreases. If a company with $150,000,000 in equity reduces shares from 10,000,000 to 8,000,000, BVPS rises from $15.00 to $18.75, making each remaining share worth more in book terms.

Why might a stock trade below book value?

Stocks trade below book value (P/B under 1.0x) when investors believe the company's assets are overvalued on the balance sheet, future earnings will decline, or the industry faces structural challenges. During recessions, many financials have traded at 0.5-0.8x book value.

How does depreciation affect book value per share?

Depreciation reduces the book value of assets over time, lowering total equity and BVPS. A company with heavy capital equipment may see BVPS decline each year unless retained earnings or new investments offset the depreciation charge.