The Wilks formula uses a coefficient based on your bodyweight. You multiply the total weight you lifted (your squat + bench + deadlift) by this coefficient to get your Wilks Score.
Here’s the formula:
Wilks Points = Total Lifted × Wilks Coefficient
The Wilks Coefficient is calculated using this formula:
1 / (a + bW + cW² + dW³ + eW⁴ + fW⁵)
Where:
W = bodyweight in kilograms
a, b, c, d, e, f = set numbers (constants) that are different for men and women.
The constants for the original Wilks formula (for men) are:
a = -216.0475144
b = 16.2606339
c = -0.002388645
d = -0.00113732
e = 7.01863E-06
f = -1.291E-08
For women, the constants are slightly different.
If you want to avoid the maths (and trust us, most people do), that’s what the Wilks calculator on this page is for. Punch in your numbers and it’ll do it for you.