DIY Cost Tools
Book Value Per Share Calculator
Calculate the accounting book equity attributable to each common share using a stated balance-sheet date. Enter total shareholders’ equity and the preferred equity included within that total; enter zero if no preferred equity is present in the chosen figures. Use the common share count that corresponds to the same date. The common-equity subtotal makes the subtraction visible before division, helping you avoid deducting preferred equity twice.
How to use this calculator
- Match your inputs to the stated financial model and field labels.
- Convert your quantities to the units printed next to each field.
- Select Calculate, or press Enter, and read the labeled results.
Formula and method
Common book equity = total shareholders’ equity − preferred equity; BVPS = common book equity/common shares outstanding.
The calculation runs in your browser. After changing an input, select Calculate again. Invalid inputs or undefined mathematical conditions hide the previous result so it cannot be mistaken for an answer to the new values.
Worked example
Total equity of 300,000 less preferred equity of 50,000 leaves common book equity of 250,000. With 10,000 common shares outstanding, book value is 25 per common share.
Limitations and interpretation
Use one currency and consistent reporting dates. This is an educational calculation, not investment, lending, tax or accounting advice. A ratio alone cannot establish solvency, creditworthiness or fair value; review the underlying statements and consult a qualified professional for consequential decisions. This is an accounting figure, not a market-price estimate or a liquidation guarantee. Share classes, treasury stock, accounting treatments and negative equity require careful interpretation. Use outstanding common shares rather than an earnings-period weighted average unless your analysis deliberately specifies otherwise.
The numerical conditions stated above are enforced by the calculation. Read each error message before changing a value. Results use floating-point arithmetic and are shown to approximately 10 significant digits. Monetary estimates and financial statements generally do not justify treating all of those digits as precise. Enter all monetary inputs in one currency; no exchange rates are fetched.
Frequently asked questions
Does book value predict a stock’s fair price?
No. Market value can reflect earnings expectations, intangible assets, risk and other information that this accounting ratio does not capture.
Why do currency and reporting dates matter?
Use the same currency and compatible reporting dates or periods for every input. The calculator does not fetch market data, translate currencies or classify your accounts. Example amounts are hypothetical.
Does this result recommend a financial decision?
No. The result evaluates the stated formula using your inputs. It does not recommend borrowing, investing or changing an accounting policy. Consider the wider situation and obtain professional advice when appropriate.
Review notes and reference
Reviewed October 3, 2026. The default worked example and an additional boundary or scaling check were tested against expected values. Validation checks included blanks, nonnumeric text and inputs outside the supported range. Financial-method reference provides background for the financial concepts used here. The text and worked example on this page are original.
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