Wilks & DOTS Calculator

Why bodyweight-adjusted scores exist

Heavier lifters lift more weight in absolute terms, but not in direct proportion to bodyweight. Strength scales roughly with muscle cross-section, while bodyweight scales with volume, so a lighter lifter is usually stronger pound for pound.

Powerlifting meets need a way to name a 'best lifter' across weight classes, and lifters want to compare themselves with friends of different sizes. Coefficient formulas like Wilks and DOTS solve this by converting your total into a single score that tries to remove the effect of bodyweight.

How to use the calculator

Choose your sex, then enter your bodyweight and either your total or your best squat, bench press and deadlift separately. The calculator adds them up and returns both a DOTS score and a classic Wilks score, plus a rough strength level.

Use lifts performed to a reasonable standard: squats to depth, a paused or at least controlled bench, and lockout on the deadlift. Touch-and-go benches and high squats inflate the score and make comparisons meaningless. If you only have rep maxes, estimate each lift with the one rep max calculator first.

The formulas

Both scores multiply your total by a coefficient that depends on bodyweight (x, in kg). The coefficient is built from a polynomial fitted to elite lifting results, with separate constants for men and women.

DOTS = total × 500 / (A + Bx + Cx² + Dx³ + Ex⁴)

Wilks = total × 500 / (a + bx + cx² + dx³ + ex⁴ + fx⁵)

The constants are long decimals, which is why nobody calculates these by hand. DOTS uses a fourth-degree polynomial and Wilks a fifth-degree one. Bodyweight inputs are capped at the edges of the range the formulas were fitted on, because the curves behave badly at extreme weights.

Reading your DOTS score

There is no official classification, but the rough bands below reflect how DOTS scores tend to spread among raw (unequipped) lifters. Treat them as loose context, not a ranking.

Example: an 83 kg man with a 600 kg total scores roughly 400 DOTS. A 63 kg woman with a 350 kg total scores around 375, close enough to compare directly, which is exactly the point of the score.

Wilks, Wilks2, DOTS and IPF GL

The original Wilks formula was devised by Robert Wilks and was the standard best-lifter formula for decades. Over time lifters noticed it favoured some weight classes over others, particularly with modern women's totals.

In 2020 an updated version, often called Wilks2, was released with refitted coefficients. Around the same time DOTS became popular in many federations as a simpler, fairer alternative. The International Powerlifting Federation now uses its own IPF GL points formula for best-lifter awards. This calculator shows DOTS and classic Wilks because they are the two most widely quoted outside the IPF.

Scores at the same total

The easiest way to see what a bodyweight-adjusted score does is to hold the total fixed and change the bodyweight. Here is an approximate DOTS score for a 500 kg total for men at different bodyweights.

The lighter lifter scores higher because lifting 500 kg is a much bigger achievement relative to their size. Notice that the drop gets smaller at higher bodyweights: the curve flattens because bigger lifters gain relatively less strength per extra kilogram.

This is also why the score is useful for planning. If you are thinking about moving up a weight class, work out the total you would need at the heavier bodyweight to keep the same score. If that jump looks unrealistic within a year, the extra weight may cost you more than it gives.

Remember that a coefficient cannot make up for missing standards. Compare scores only when the lifts were done to similar depth, pause and lockout rules, and preferably in the same equipment category.

Limitations

Every coefficient formula is a compromise built from top-level results, so it is least accurate at the very light and very heavy ends. None of them account for age, height, equipment or drug testing, and a score from a gym session is not the same as one under competition judging.

Use your score to track your own progress over time, or to see whether gaining weight actually made you stronger relative to your size. A rising DOTS after a bulk means the extra bodyweight paid off.

Raising your score

The surest way to a higher score is a higher total at a stable bodyweight. A structured strength block such as the 5x5 strength program, steady progressive overload and good technique on the squat, bench press and deadlift will move it more than any diet trick. Load your bar quickly with the plate calculator.