Free tools
Value investing calculators
Free to use, no account needed. Each calculator runs a classic value-investing formula on numbers you enter — or that we prefill from any U.S. ticker in our universe. Every figure stays editable, and each tool links to the full method behind it.
Graham Number Calculator
Benjamin Graham's defensive price ceiling, √(22.5 × EPS × book value). Autofill from a ticker.
Net-Net (NCAV) Calculator
Test whether a stock trades below its net current asset value — Graham's deepest bargain. Autofill from a ticker.
Altman Z-Score Calculator
Score the risk of financial distress from five balance-sheet ratios.
Want the reasoning, not just the number? Read the value investing blog or screen the whole market on the free stock screener.
These tools are for information and education. They are not personalized investment advice. Investing carries a risk of capital loss.