Wilks and DOTS both use a 5th-degree polynomial of body weight to normalize squat + bench + deadlift totals. The formula divides your total by a coefficient derived from the polynomial, offsetting the advantage heavier lifters naturally have. Sex-specific coefficients account for physiological differences.
Above 300 is Beginner-level; 400+ is Intermediate; 500+ is Advanced; 600+ is Elite. For reference, competitive powerlifters typically range 400-600 depending on weight class.
DOTS (2019) is a modernized version using updated data and revised coefficients. DOTS is generally more favorable to lighter lifters and is now the standard in many federations.
Physiological differences in muscle mass, leverage, and hormone profiles mean men and women typically have different absolute strength levels at similar body weights. Separate polynomials ensure fair comparisons within each group.
The IPF (International Powerlifting Federation) and most major federations now use DOTS. Some regional meets still use Wilks. Always check your competition's rules.
The polynomial is a 5th-degree fit to historical strength data. Its coefficients were determined by regression to ensure the formula predicts strength fairly across all body weights. Updates to the formula reflect new data or refined methodology.
Estimate only. Results reflect your inputs and standard formulas. Double-check important decisions independently.