Bradford Score

You’ve heard of staff turnover, labour turnover, labour stability and so on. How about the Bradford Score? No?

The Bradford Score or the Bradford Factor is otherwise known as a RELIABILITY FORMULA and is another variable or metric that HR departments are using to understand the behaviour of their staff. Once they have understood the behaviour of their staff, they can manage and control them better.

Working with Workforce Planning expert Dr Tony Miller, I have created a Bradford Score spreadsheet that allows anyone and any organisation to create their own Bradford Score. Take a look at the screenshot below to see part of what we have done:

As you can see, the Bradford Score, takes the NUMBER of absences of an employee and combines it with the DURATION of those absences and creates the SCORE. By finding the scores of all of your employees, you create a profile of your company, as we have done in our spreadsheet. On that basis and on the basis of best practice, you can then decide the cut off points for

  • warnings
  • dismissal

Scientific and simple: the Bradford Score is a very powerful tool in this modern world of throwing sickies and duvet days.


There are three key areas that combine to give you measurable, manageable and predictable productivity.

Competence ———-||
             || Measured by Performance Appraisal
Performance ———-||

The third is Reliability, turning up for work. The most accurate method of doing this used to be using the Bradford formula. We have improved on this and transformed the results by creating OUR 0 -100 RELIABILITY SCALE: the same linear scale used for competence and performance. Now all the measurements on the NEW HR dashboard are on the same measurement system: easy for comparison and for calculating productivity scores for any existing bonus system.

The Bradford Score is Calculated as Follows:

B = S2 * D


B is the Bradford Score
S is the total number of absences of an individual over a period
D is the total number of days of absence of that individual over the same set period
The time period is usually set as a rolling 52 week period.


1 instance of absence with a duration of ten days = 1 x 1 x 10 = 10 points
3 instances of absence; one of one and two of two days = 3 x 3 x 5 = 45 points
3 instances of absence; one of one, one of three and one of six days = 3 x 3 x 10 = 90 points
5 instances of absence; each of two days = 5 x 5 x 10 = 250 points
10 instances of absence; each of one day = 10 x 10 x 10 = 1000 points

You can buy this highly interactive and totally customisable spreadsheet for just $100 by going here and clicking on Add to Cart!!