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Schwartz Formula Calculator

Compare powerlifting totals fairly across different body weights with the Schwartz formula.

Result

290.02
0.580

How it is calculated

The tool multiplies your powerlifting total by a coefficient that falls as bodyweight rises: coefficient = 0.487518 + 4.456830 × e−0.043053 × bodyweight and score = coefficient × total. Bodyweight and total (squat + bench press + deadlift) are both in kilograms. The coefficient is a smooth curve fitted to the classic Schwartz factor table, so it also gives values between the table's listed weights. It uses one curve with no sex or age input, and rounding is done only at the end: the coefficient is shown to three decimals and the score to two. The coefficient approaches about 0.49 for very heavy lifters, and a lighter lifter gets a larger multiplier.

Worked example

A lifter weighs 90 kg and has a 500 kg total. Exponent = −0.043053 × 90 = −3.8748. e raised to that is about 0.02076. Coefficient = 0.487518 + 4.456830 × 0.02076 = 0.580 (shown rounded). Score = 0.580038 × 500 = 290.02, using the unrounded coefficient. Result: Schwartz score 290.02. A lighter lifter with the same 500 kg total at 60 kg bodyweight would score 412.08.

Try this example →

Common mistakes

  • Entering a single lift (such as the deadlift) as the total. The formula expects the combined total of squat, bench press and deadlift.
  • Entering the weight lifted in pounds or the bodyweight in pounds. Both fields are kilograms, so convert first.
  • Multiplying the shown coefficient (0.580) by the total by hand and expecting an exact match. The tool uses the unrounded coefficient, so the hand figure is a little different.
  • Comparing a Schwartz score with a Wilks, IPF GL or other score. Each system has its own coefficients and scale, so the numbers cannot be compared across systems.
  • Using the score to compare men and women. The tool has one curve and no sex setting, so it is not a cross-category ranking.

About this calculator

The Schwartz formula is one of the classic powerlifting scoring systems used to compare lifting totals fairly across different body weights, since raw totals naturally favor heavier lifters — it applies a body-weight-based coefficient to a competitor's total (squat, bench press and deadlift combined) to produce a single comparable score, similar in purpose to the more modern Wilks or IPF GL formulas but built on an older set of coefficients.

Powerlifting federations, meet organizers and lifters themselves use body-weight-adjusted scores like Schwartz to determine "best lifter" awards across weight classes and to let a 65 kg lifter and a 120 kg lifter meaningfully compare performances, since simply ranking by total kilograms lifted would always favor the heaviest competitors regardless of relative strength.

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