Finance · Investments & Markets

Altman Z-Score Calculator

Calculate the original public-manufacturer Altman Z-score from entered accounting ratios.

Loading calculator…

Quick guide

How to use this calculator

  1. Enter the exposure, market, accounting, probability, rate, or risk assumptions named by the fields.
  2. Use consistent currencies, periods, share units, and percentage conventions.
  3. Interpret the output only within the displayed model and limitations.

Calculation method

Calculation method

Z = 1.2×WC/TA + 1.4×RE/TA + 3.3×EBIT/TA + 0.6×market equity/TL + sales/TA.

Fixed decimal scalar arithmetic remains exact until display. Square-root and compound projections are explicitly approximate and reject non-finite results.

Worked example

Worked example

Enter one company's consistent-period statement values to calculate the original five-factor score.

Z = 1.2×WC/TA + 1.4×RE/TA + 3.3×EBIT/TA + 0.6×market equity/TL + sales/TA.

Supported inputs

Precision and limits

Visible input limits

Fixed decimals accept 30 digits and 12 decimal places, with absolute values capped at 1e12 per input and general rates capped at 1000%. Formula-specific shares and probability limits are validated separately.

International scope

No currency, exchange, broker, live security data, accounting standard, tax jurisdiction, contract specification, or regulatory disclosure is selected automatically.

Decision boundary

Outputs are arithmetic scenarios, not forecasts, advice, suitability assessments, trading signals, fair-value opinions, risk guarantees, or recommendations.

Calculator-specific assumptions

This route implements only the original public-manufacturing model. It does not classify distress, select a model variant, or replace credit analysis.