Graham Number Calculator
Calculate the Benjamin Graham fair value ceiling, P/E * P/B product multiple, and defensive margin of safety.
What is the Graham Number Calculator?
The ToolboxDock Graham Number Calculator is a free, 100% browser-based financial utility that calculates money metrics directly in client-side RAM with zero server transfers. It provides instant mathematical modeling for loans, investments, taxes, and amortization schedules while ensuring complete confidentiality of your sensitive financial data.
The Graham Number is a classic value investing formula developed by Benjamin Graham (the father of value investing and Warren Buffett's mentor) that defines the upper price limit a defensive investor should pay for a stock based on earnings and tangible book value.
Financial Calculation Inputs
- Supported Inputs: Principal balances, interest rates, compounding schedules, and tenures.
- Precision Model: High-precision IEEE-754 floating-point arithmetic with decimal rounding.
- Data Privacy: Zero cloud logs. Figures are calculated locally in your browser memory.
Output & Schedule Breakdown
- Visual Analytics: Month-by-month schedules, dynamic charts, and cash flow summaries.
- Currency Support: Multi-currency symbol formatting (USD, EUR, GBP, INR, JPY, CAD, AUD).
- Access Guarantee: 100% unlocked with zero limits, subscriptions, or forced account creation.
How to Use the Graham Number Calculator
Follow these 3 simple steps for instant, accurate calculations.
1. Input Diluted Earnings Per Share (EPS)
Enter the trailing twelve months (TTM) normalized Earnings Per Share (e.g. $4.50).
2. Input Book Value Per Share (BVPS)
Enter the common equity Book Value Per Share from the latest corporate balance sheet (e.g. $32.00).
3. Evaluate Graham Number & Buy Ceiling
Review calculated Graham Number ceiling price, compare against current stock price, and assess undervaluation discount.
Financial Privacy & Architecture Comparison
Why client-side financial calculations protect your privacy better than cloud services.
| Evaluation Criteria | ToolboxDock (Client-Side) | Traditional Online Calculators |
|---|---|---|
| Financial Data Privacy | 100% Local (Never leaves device RAM) | Logged on remote servers and ad networks |
| Calculation Latency | Instant real-time update on keystroke | Full page reloads or API round-trips |
| Offline Usability | Works offline once cached in browser | Fails without active server connection |
| Cost & Paywalls | 100% free with unlimited calculations | Usage caps or financial product paywalls |
Benjamin Graham Number Formula
Calculates the upper boundary price for a defensive stock where Price-to-Earnings <= 15 and Price-to-Book <= 1.5.
Core Graham Number Calculator Inputs & Terminology
The theoretical maximum fair value purchase price for a conservative value stock, calculated as sqrt(22.5 × EPS × BVPS).
Total common shareholders' equity divided by total shares outstanding, representing net accounting asset value.
The product of Graham's maximum conservative P/E threshold (15.0) and maximum P/B threshold (1.5): 15.0 × 1.5 = 22.5.
Graham's term for a conservative investor seeking long-term capital preservation with minimum risk.
Frequently Asked Questions
Common questions about using our free Graham Number Calculator.