Quick Answer
DOTS scores a powerlifting total relative to body weight: DOTS = total × 500 ÷ (a₀ + a₁·BW + a₂·BW² + a₃·BW³ + a₄·BW⁴), using different coefficients for men and women. An 83 kg male lifting a 650 kg total scores 438.81, which is Advanced. In the IPF's own March 2020 evaluation DOTS ranked second of five formulas, behind Goodlift and ahead of Wilks and Wilks-2 — the IPF then adopted Goodlift as IPF GL Points, so DOTS is not an IPF formula.
How to Use the DOTS Calculator
The tool needs three things, and it recalculates the moment you change any of them — there is no submit button.
- Pick your sex. Male and female use completely different coefficients, so this is not a cosmetic setting. The same body weight and the same total produce a very different score depending on which one is selected.
- Enter your body weight. Use the dropdown next to the box to switch between kg and lb. Enter the weight you actually weighed in at, not your walking-around weight.
- Enter your total. That is your best squat plus best bench press plus best deadlift. The kg/lb dropdown for this field is separate, so you can enter a body weight in lb and a total in kg if that is how your numbers come.
- Read the score. The DOTS number appears on the right to two decimal places, with a strength category underneath it and a gauge showing where the score sits on the 0–600+ scale.
The DOTS Formula
DOTS divides your total by a fourth-order polynomial of your body weight, then scales the result by 500. Everything happens in kilograms — enter pounds and the calculator multiplies by 0.45359237 before the formula sees the number.
Total and BW are both in kilograms. The five coefficients depend on sex.
These are the published coefficients, and they are the ones this calculator uses:
| Coefficient | Male | Female |
|---|---|---|
| a₀ (constant) | −307.75076 | −57.96288 |
| a₁ (BW) | 24.0900756 | 13.6175032 |
| a₂ (BW²) | −0.1918759221 | −0.1126655495 |
| a₃ (BW³) | 0.0007391293 | 0.0005158568 |
| a₄ (BW⁴) | −0.000001093 | −0.0000010706 |
There is a shortcut hidden in the structure worth knowing. Because the 500 sits on top, the value of the polynomial is exactly the total that scores 500 DOTS at that body weight. Work out the denominator once and you have your 500-point target without touching the rest of the formula.
Worked Example: 83 kg Male, 650 kg Total
These are the values the calculator loads with, so you can follow along against the live result.
- Evaluate the polynomial at BW = 83 kg. Using the male coefficients: −307.75076 + (24.0900756 × 83) + (−0.1918759221 × 6,889) + (0.0007391293 × 571,787) + (−0.000001093 × 47,458,321) = 740.645.
- Scale the total. 650 × 500 = 325,000.
- Divide. 325,000 ÷ 740.645 = 438.81 DOTS.
- Read the category. 438.81 falls in the 400–499 band, so the tool tags it Advanced and puts the gauge needle just past the three-quarter mark.
Notice what step 1 gives you for free: 740.645 is also the total this lifter would need for a round 500 DOTS — 90 kg more than they are lifting now.
DOTS Score Categories
The strength label under your score comes from these bands. They are a widely used reading of the scale rather than anything an international federation ratifies, so treat them as orientation, not as a grading system.
| DOTS score | Category | Total needed at 83 kg male |
|---|---|---|
| Under 200 | Beginner | Under 296.3 kg (653 lb) |
| 200–299 | Novice | 296.3 kg (653 lb) |
| 300–399 | Intermediate | 444.4 kg (980 lb) |
| 400–499 | Advanced | 592.5 kg (1,306 lb) |
| 500–599 | Elite | 740.6 kg (1,633 lb) |
| 600 and above | World class | 888.8 kg (1,959 lb) |
The third column is the point of the table. A category is not a fixed pile of weight — an 83 kg lifter needs 592.5 kg to reach Advanced, while a 120 kg lifter needs considerably more for the same label. That is precisely the distortion DOTS exists to remove.
DOTS vs Wilks, Wilks-2, IPF and Goodlift
This question has a documented answer, and it comes from the International Powerlifting Federation itself. Before choosing a replacement for its own scoring system, the IPF commissioned a statistical evaluation of five formulas, published in March 2020 and measured against results from every IPF world and European championship from 2011 onward. Read the full evaluation of the Wilks, Wilks-2, DOTS, IPF and Goodlift formulas if you want the tables in full.
Each formula was scored on two criteria — how evenly it treats different weight classes (coefficient of variation) and how well it orders lifters of equivalent quality (rank correlation). Lower totals are better:
| Formula | Coefficient of variation | Rank correlation | Overall |
|---|---|---|---|
| Goodlift (GL) | 11 | 12 | 23 |
| DOTS | 23 | 21 | 44 |
| Wilks-2 | 27 | 23 | 50 |
| Wilks | 31 | 26 | 57 |
| IPF Points (2018) | 28 | 38 | 66 |
The report’s own conclusion is that Goodlift leads and “the DOTS formula ranks second by a large margin,” with both Wilks versions behind it and the IPF’s own 2018 formula last. The IPF acted on that: it adopted IPF GL Points, valid from 1 May 2020 across all IPF-sanctioned events.
Body Weight Moves Your Score More Than You Expect
DOTS has two inputs and lifters usually only train one of them. Holding a 650 kg total completely fixed and changing nothing but body weight:
| Body weight | DOTS (650 kg total, male) | Category |
|---|---|---|
| 66 kg | 509.29 | Elite |
| 74 kg | 470.37 | Advanced |
| 83 kg | 438.81 | Advanced |
| 93 kg | 413.56 | Advanced |
| 105 kg | 392.01 | Intermediate |
| 120 kg | 373.30 | Intermediate |
| 140 kg | 356.21 | Intermediate |
The same three lifts are worth 509 DOTS at 66 kg and 356 at 140 kg. Near the middle of that range the trade rate is sharp: for our 83 kg lifter, dropping to 82 kg adds 3.02 DOTS, while adding 5 kg to the total adds 3.38. One kilogram of body weight is worth roughly four and a half kilograms on the platform — which is why meet-day weight management is a genuine part of the sport, and why a score always travels with the body weight it was set at.
If you are managing body weight deliberately, do it on a calorie target rather than by feel — our calorie calculator works out maintenance and a deficit from your own stats. Water manipulation in the final 24 hours before a weigh-in is a different and riskier practice; if a sauna is part of your routine, the sauna calories burned calculator gives you a sense of the session, but rehydration between weigh-in and platform is what actually decides whether the cut cost you the total.
Where the Formula Stops Working
DOTS is a curve fitted to competition data, so it is only trustworthy across the range that data covered.
Three more limits worth holding on to. DOTS makes no distinction between raw and equipped lifting — a squat suit and knee wraps are worth a great deal of weight, and the formula cannot see them, so only compare like with like. It also draws no line between tested and untested federations. And because a single coefficient set covers every adult, it makes no age adjustment; masters lifters who want an age-graded comparison need a separate age factor on top.
