Bradford Factor Calculator
Use our free Bradford Factor calculator to understand absence patterns, assess sickness frequency, and see how the Bradford Factor impacts your workforce. Calculations are excluding protected leave such as medical accommodation, disability-related absence, or legislated leave.
Bradford Factor Calculator
Did you know that over a year, absence patterns can:
Turn 10 days off into a score of 1,000
When absences are spread across 10 separate occasions instead of one.
Significantly affect operations depending on frequency and timing.
Five short absences score 250, versus 10 for one continuous absence.
Be measured over 52 weeks
Most Bradford Factors use a rolling 12-month period.
Create cause for review
Many employers monitor Bradford Factor scores once they pass 100–200.
Highlight repeat short absences
Legitimate medical leave or accomodated absences should be factored out.
What is a high Bradford Factor score?
Because the formula weights frequency heavily, a low Bradford Factor score suggests stable attendance with fewer interruptions, while a high score can indicate patterns worth reviewing within HR absence management.
Common Bradford Factor interpretations
- 0–50: Generally considered low and normal absenteeism
- 51–100: Possible area for monitoring
- 101–200: High or concerning patterns
- 200+ : Very high, may prompt formal discussion or review
How Bradford Factor scores are calculated
Bradford Factor = S² × D
S = number of separate absence spells within the period
D = total days absent in that same period (often a rolling 12-month window)
Why The Bradford Factor matter for your business
Frequent short-term absences can cause more disruption than longer, planned time off. Without clear visibility, patterns often go unnoticed until they escalate.
We combine Bradford Factor calculations with HR software to give you;
- Clear absence insight
- Early intervention
- Fairer conversations
- Accurate records
Curious how our expert advice could support you? Book a consultation today.
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