Calculate Your Glossbrenner Score
Enter your coefficient category, bodyweight in kilograms, and powerlifting total in kilograms. This calculator uses the OpenPowerlifting implementation of Glossbrenner, including its fitted coefficient curves. It is not an exact lookup of every federation's printed chart.
Formula and Method
The coefficient combines Schwartz for men or Malone for women with the original Wilks coefficient. In the OpenPowerlifting implementation, the Wilks component changes to a fitted linear tail at 153.05 kg for men and 106.3 kg for women. Its Malone component is also fitted to published tables. The male Schwartz component stops decreasing above 166 kg, as in that implementation.
The displayed score is rounded to two decimal places after multiplication. Intermediate coefficients are not rounded before calculating the score.
Worked Examples
At 100 kg bodyweight, the male coefficient is approximately 0.58127079. A 1,000 kg total produces 581.27 points. At 60 kg bodyweight, a female lifter with a 500 kg total scores 492.53 points using this method.
The WRPF chart's worked example also checks the basic calculation: a male lifter weighing 45 kg and totaling 300 kg scores 342.99 points.
Supported Inputs and Limits
- Male bodyweight: 40–229.95 kg, inclusive.
- Female bodyweight: 40–169.95 kg, inclusive.
- Total: a finite, non-negative number of kilograms. Zero total gives zero points.
These tool limits follow the bodyweight coverage of the published WRPF 2020 coefficient chart; they are not universal eligibility rules. Values outside those ranges produce an Input Check message instead of an extrapolated score. Decimal bodyweights are evaluated directly without rounding to a weight class or table row.
For full power, enter the sum of your best successful squat, bench press, and deadlift. This calculator applies no masters age multiplier, equipment adjustment, or drug-testing adjustment.
Printed Tables and Competition Results
OpenPowerlifting's fitted curves can differ from printed federation coefficients, beyond simple display rounding. For example, at 60 kg the WRPF women's chart lists 0.9876, which gives 493.80 points for a 500 kg total; the OpenPowerlifting method gives 492.53 points. Use the method specified by your meet when reproducing an official result. Do not assume that Glossbrenner, Wilks, DOTS, or IPF GL scores are interchangeable.