Bradford Factor Calculator

Calculate the Bradford Factor to manage absenteeism and understand how repeated short-term absences impact your organization.

Absence details

How to Use This Calculator

Start by entering the total number of absence incidents and the aggregate days absent for the employee or group you are monitoring. The calculator squares the incident count and multiplies by the days absent to deliver the Bradford Factor score used by HR teams worldwide.

  1. Enter the absenteeism data in the fields above. Use whole numbers for clarity.
  2. Press Calculate or let the inputs recompute automatically after the debounce delay.
  3. Review the score and interpretation on the right; higher values indicate more disruptive attendance patterns.

Methodology

The Bradford Factor is calculated as B = S² × D, where S is the number of absence incidents and D is the total days absent. It amplifies frequent absences because the incident count is squared before multiplying by the duration, so short, repeated absences push the score upward quickly.

This implementation keeps the score deterministic by rounding intermediate results to whole numbers and reflecting each human-friendly value directly in the UI.

What is the Bradford Factor?

A formula that quantifies employee absenteeism to expose patterns that cause disruption disproportionate to the total time missed.

Why is it important?

Monitoring the Bradford Factor helps HR teams flag frequent, short-term absences that are typically more costly than planned leaves.

How do I interpret the score?

Scores under 50 are usually low, scores above 200 signal a disruptive absence pattern, and ultra-high numbers may require intervention.

What is a good Bradford Factor score?

There is no universal threshold, but many policies trigger review actions as scores approach or exceed 200.

Can I use it for all absence types?

It is best suited for tracking unexpected short-term absences rather than planned leave or long-term illness.

Full original guide (expanded)

Legacy Bradford Factor guidance

Use this Bradford Factor Calculator to quickly assess the impact of employee absences on your organization. This tool is designed for HR professionals and managers to efficiently manage absenteeism.

Total Number of Absences and Total Number of Absence Incidents are required fields. The calculator expects numbers only and provides error messages if either field is missing.

Data Source and Methodology: All calculations are based strictly on the Bradford Factor formula, widely recognized in HR management for evaluating the impact of employee absences.

Bradford Factor Formula:

B = S² × D

Glossary of Terms

  • S: Total number of absence incidents.
  • D: Total number of days absent.
  • B: Bradford Factor score.

How It Works: A Step-by-Step Example

Consider an employee who has been absent 3 times for a total of 12 days. The Bradford Factor score is calculated as follows:

B = 3² × 12 = 108

Frequently Asked Questions (FAQ)

What is the Bradford Factor?

The Bradford Factor is a formula that quantifies employee absenteeism and its impact on a business.

Why is the Bradford Factor important?

It helps organizations identify absenteeism patterns and manage them effectively.

How do I interpret the Bradford Factor score?

Higher scores indicate frequent short-term absences, which are often more disruptive than occasional long-term absences.

What is a good Bradford Factor score?

Scores under 50 are generally considered low, while scores over 200 might require HR intervention.

Can the Bradford Factor be used for all types of absences?

It is best used for unplanned short-term absences, not long-term or planned leave.

Formulas

Bradford Factor (attendance impact):

B = S² × D

  • S: Total number of absence incidents.
  • D: Total number of days absent.
  • B: Bradford Factor score (higher values signal more disruption).
Citations

Preserved sources from the legacy audit:

Changelog
Versions
  • 0.1.0-draft — Initial audit spec draft generated from HTML extraction (review required).
  • Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
  • Confirm sources are authoritative and relevant to the calculator methodology.
Version metadata preserved from the legacy audit log.
Verified by Ugo Candido Last Updated: 2026-01-19 Version 0.1.0-draft
Version 1.5.0