Health calculator

Free wilks calculator

See how strong you are pound for pound. Enter your bodyweight, your powerlifting total, and your sex in kg or lb, and the calculator returns your Wilks score and coefficient, the training level it falls in, and how it stacks up against the beginner-to-elite bands — updated live, as you type.

InputsLive
Sex
Units
Bodyweight
kg
Total lifted
kg
How the result is calculated
The Wilks score scales your total by a bodyweight-and-sex coefficient:Wilks = total(kg) × 500 / (a + bx + cx² + …)
  • x is your bodyweight in kg; a…f are sex-specific constants.
  • Lighter lifters get a larger coefficient, heavier lifters a smaller one.
  • Pounds are converted to kg (÷ 2.20462) first.
Original 1991 Wilks formula (Robert Wilks, Powerlifting Australia).
Check our examples
Male 90 kg, 600 kg total -> Wilks 383Male 200 lb, 1300 lb total -> Wilks 375Female 60 kg, 350 kg total -> Wilks 390
Result
Wilks score
383.0
Level: Intermediate · competitive at many local meets.
Wilks score383.0
Coefficient0.6384
Total (kg)600.0 kg
Wilks training-level guide (men’s scale)
WilksLevelMeaning
under 200BeginnerBuilding base strength and technique.
200 - 300NoviceA solid base from consistent training.
300 - 400IntermediateCompetitive at many local meets.
400 - 500AdvancedA strong, regionally competitive total.
500 and upEliteNational-class, pound-for-pound strength.

Community rule of thumb, not an official standard. Women’s bands run ~15% lower.

Training-level bands are a community rule of thumb, not an official standard. Wilks vs IPF GL points

Results are estimates. Consult a professional.

Definition

What is the Wilks coefficient?

The Wilks coefficient is a number that scales a powerlifter's total — squat plus bench press plus deadlift — so lifters of different bodyweights can be compared on a single pound-for-pound scale. Multiply your total (in kilograms) by your coefficient and you get your Wilks score, the figure this Wilks calculator returns the moment you enter your bodyweight and total. The coefficient itself comes from a bodyweight- and sex-specific formula devised by Robert Wilks of Powerlifting Australia in 1991.

The idea is simple: raw total alone is unfair across weight classes. A 60 kg lifter and a 120 kg lifter who both deadlift 250 kg are not equally strong relative to their size — the lighter lifter is moving far more for their bodyweight. The Wilks coefficient corrects for that. Lighter lifters get a larger multiplier and heavier lifters a smaller one, so the score reflects strength for your size rather than absolute load.

Because of that scaling, the coefficient runs roughly from about 1.2 for very light lifters down toward 0.5 for the heaviest. The result is one comparable number — your Wilks score — that lets a 60 kg woman and a 100 kg man be ranked on the same list, which is exactly what powerlifting meets needed before they could crown a single 'best lifter' across every category.

The formula

How the Wilks calculator works

The calculator does two things. First it computes your Wilks coefficient from your bodyweight and sex using a fifth-degree polynomial. Then it multiplies your total lifted by that coefficient. You only need two inputs: your bodyweight and your total (the sum of your best squat, bench, and deadlift).

Wilks score = total lifted (kg) × coefficient
coefficient = 500 / (a + b·x + c·x² + d·x³ + e·x⁴ + f·x⁵)
where x = bodyweight in kg; a…f are sex-specific constants

Men and women use completely separate sets of constants (a through f), which is why the calculator asks for your sex — the female polynomial returns a higher coefficient at the same bodyweight to keep the scale fair across sexes. Working in pounds is fine: the calculator converts your bodyweight and total to kilograms first (1 kg = 2.2046 lb), because the formula is defined in metric.

You don't need to compete to get a Wilks score. Sum your best squat, bench, and deadlift — even your estimated one-rep maxes from the gym — enter your bodyweight, and the calculator returns your score instantly.
Why it exists

Why the Wilks score exists: comparing lifters across bodyweights

Powerlifting splits competitors into weight classes, but that creates a problem at the end of a meet: how do you name a single 'best lifter' when the winners of each class lifted wildly different absolute totals? You cannot just take the biggest number — that would hand the title to the heaviest lifter every time. You need a way to measure strength relative to bodyweight.

That is the job the Wilks coefficient was built to do. Robert Wilks fit his polynomial to the strength curve of elite lifters so that, in principle, equally impressive lifters at any bodyweight land on a similar score. It replaced earlier ratios such as the Schwartz and Malone formulas and became the international standard — used by the IPF and most federations — for ranking the overall best lifter regardless of class.

It is also the everyday tool gym lifters use to track progress honestly. As you get stronger your raw total climbs, but as you also change bodyweight, your Wilks score tells you whether you are genuinely getting stronger for your size or simply lifting more because you weigh more.

Worked example

A worked example using the Wilks calculator

Example: a 90 kg male with a 600 kg total

Tom weighs 90 kg and his best competition lifts add up to a 600 kg total (a 220 kg squat, 150 kg bench, and 230 kg deadlift). He wants his Wilks score. Here is the arithmetic the calculator runs.

Step 1 — Find the Wilks coefficient for the bodyweight

Plug 90 kg into the male polynomial denominator and divide 500 by it. The result is a coefficient of 0.6384. (A lighter 75 kg lifter would get a larger coefficient, around 0.70; a heavier 120 kg lifter a smaller one, around 0.55.)

Step 2 — Multiply the total by the coefficient

Now multiply the total in kilograms by that coefficient: 600 × 0.6384 = 383.0. That is Tom's Wilks score.

Step 3 — Read the level

A Wilks score of 383 sits in the intermediate-to-advanced band — competitive at many local and regional meets, and well above the typical recreational lifter. The next section shows the full interpretation table.

90 kg · 600 kg total → Wilks 383
The calculator shows this instantly, along with the coefficient and your training level. Lifting in pounds? Enter 198 lb and a 1,323 lb total and you get the same score — it converts to kg for you.
Reading the result

What is a good Wilks score? Interpretation by level

There is no official Wilks standard, but the powerlifting community has settled on broad bands that most coaches and calculators agree on. The table below uses the men's scale; women's bands run roughly 15% lower because the female coefficients already lift the score, so a strong female Wilks looks numerically smaller. Find your score and read across.

Wilks score (men)Wilks score (women)LevelWhat it means
under 200under 170BeginnerStill building base strength and technique
200 – 299170 – 254NoviceA solid base from consistent training
300 – 399255 – 339IntermediateCompetitive at many local meets
400 – 499340 – 424AdvancedA strong, regionally competitive total
500 and above425 and aboveEliteNational-class, world-class pound-for-pound

General community guidance aggregated across powerlifting calculators and coaches — not an official standard. Women's bands apply a 0.85 factor to the men's thresholds.

As anchors: most lifters reach roughly 200–300 in their first year of serious training, the bulk of regional competitors score between 300 and 400, national-level lifters exceed 400, and a Wilks of 500+ is world-class — reached by only a handful of athletes. Because the score already accounts for bodyweight, these bands apply fairly whether you are a 60 kg or a 120 kg lifter.

The comparison

Wilks vs IPF GL Points: which should you use?

If you follow competitive powerlifting you will see IPF GL Points ("Goodlift" points) alongside or instead of Wilks. In 2019 the IPF moved away from the original Wilks formula, and in May 2020 it adopted IPF GL Points as its official scoring system. Both answer the same question — strength relative to bodyweight — but they use different math and have different strengths.

Wilks (1991)IPF GL Points (2020)
Model5th-degree polynomialExponential decay (diminishing returns)
Scalescore × ~0.5–1.2 coefficientpoints out of ~100+
Equipmentone formula for allseparate raw and equipped coefficients
Official IPF useuntil 2019current standard
Best athistorical comparison, gym usemodern meets, extreme bodyweights

The IPF's own 2020 evaluation ranked the GL formula first overall for accuracy across the bodyweight range.

The practical difference: Wilks is known to slightly favour mid-weight lifters and under-score the very light and very heavy, whereas IPF GL models the diminishing returns of added bodyweight more cleanly at the extremes. For official IPF results, IPF GL Points are now used. For everyday gym tracking and comparing against the decades of historical totals scored under Wilks, the Wilks score is still widely used and perfectly useful — which is why this calculator computes it. A related system, DOTS (2020), is another modern alternative you will see on lifting sites.

Taking action

How to improve your Wilks score

Your Wilks score moves when your total rises faster than your bodyweight. Because the coefficient falls as you get heavier, simply adding bodyweight does not automatically raise your score — you have to add strength faster than you add mass. The levers:

  1. Add strength to your weakest of the three lifts. Your total is squat + bench + deadlift; the biggest, fastest gains usually come from bringing up your laggard rather than pushing your best lift further.
  2. Run a structured strength programme. Progressive overload across the big three — with planned intensity and volume — drives total more reliably than random training.
  3. Manage bodyweight deliberately. Gaining weight can add to your total, but it lowers your coefficient. If your goal is a higher Wilks rather than a bigger raw total, hold or trim bodyweight while keeping strength.
  4. Sharpen technique and recovery. Better bar paths, bracing, and consistent sleep and nutrition convert the same effort into more kilograms on the bar.

Track each of the three lifts and re-check your score as they climb. Estimating your maxes from a recent set? Use the one-rep max calculator to predict each lift without a true max attempt, then sum them for your total here. Pair it with the BMI calculator to keep an eye on bodyweight as you chase a higher Wilks.

Methodology

Data sources and methodology

This calculator uses the original 1991 Wilks formula (Robert Wilks, Powerlifting Australia) — the set of coefficients the IPF and most federations used until they transitioned to IPF GL Points in 2019–2020. The coefficient is a fifth-degree polynomial of bodyweight in kilograms, with separate constants for men and women; the Wilks score is your total in kilograms multiplied by that coefficient. The polynomial is well-behaved across the competitive bodyweight range (roughly 40–200 kg), so values far outside it are not scored. Level bands are general community guidance, not an official standard.

Robert Wilks, original 1991 Wilks formula (Powerlifting Australia / IPF). IPF scoring transition to IPF GL Points (2020).
The Wilks score is a comparison tool, not a fitness or health verdict. For official IPF competition rankings the current standard is IPF GL Points; Wilks remains widely used for gym tracking and historical comparison.
Questions

Frequently asked questions about the free wilks calculator

A wilks calculator is a free online tool that helps you calculate your Wilks score and coefficient to compare powerlifting totals across bodyweights and sex. The Wilks score scales your total (squat + bench + deadlift) by a bodyweight-and-sex coefficient so lifters of different sizes compare on one scale. It runs entirely in your browser with instant results and no sign-up.
There's no official cutoff, but a common rule of thumb (men's scale) is: under 200 beginner, 200-300 novice, 300-400 intermediate, 400-500 advanced, and 500+ elite, national-class strength. Women's bands run roughly 15% lower. These are community guidance, not an IPF standard.
Your total (squat + bench + deadlift) in kilograms is multiplied by a coefficient derived from your bodyweight and sex: Wilks = total(kg) × 500 / (a + bx + cx² + dx³ + ex⁴ + fx⁵), where x is bodyweight in kg. Lighter lifters get a larger coefficient, heavier lifters a smaller one, so different bodyweights compare fairly.
Wilks (1991) uses a fifth-degree polynomial and is known to favour mid-weight lifters. IPF GL (Goodlift) points use a three-parameter exponential curve that handles very light and very heavy lifters more fairly, with separate constants for raw and equipped lifting. The IPF replaced Wilks with GL points around 2020 for official meet rankings.
Yes. The formula uses a separate set of constants for men and women so that scores are comparable within each group. This calculator switches constants automatically when you choose your sex.
Either — pick the unit toggle. The formula is defined in kilograms, so pounds are converted (÷ 2.20462) before the score is computed. Enter your full powerlifting total (squat + bench + deadlift), not a single lift.
It depends on your total. Adding total raises your score; adding bodyweight lowers the coefficient. The best Wilks comes from being as strong as possible at the lowest bodyweight you can hold that strength at — which is why lifters sometimes cut a little to a lighter class on meet day.
About

About this Wilks calculator

This Wilks calculator runs entirely in your browser. The values you type never leave your device. It applies the original 1991 Wilks formula (Robert Wilks, Powerlifting Australia), converts pounds to kilograms first, classifies your score against the common training-level bands, and updates instantly on every change.

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