The Ratio Calculator
How close are you to 1.618?
Divide your shoulders by your waist. The classic V-taper, the shape Greek sculptors carved in marble, sits at about 1.618: the golden ratio.
1.00your ratio
1.001.618 · the ratio
Shoulders at 1.618–with your current waist
Waist at 1.618–with your current shoulders
Enter both measurements in centimetres to see your ratio.
A fun guide to proportion, not a health measure. Everyone's frame is different.
1.618
SHOULDERS ÷ WAIST
How to measure
01Shoulders
Wrap a soft tape around the widest point of your shoulders and chest, arms relaxed by your sides.
02Waist
Measure around your natural waist, just above the belly button, breathing out normally. Don't suck in.
03Same time, every time
Morning, before training. Re-measure every 8 weeks and come back to watch the number move. We'll keep your last result on this device.
Chasing 1.618?
So are we.
Join for early access to Drop 01 and every drop after. We only email when there's something to say.
Built for the taper
Ratio Compression Tee
Cut to sharpen the shoulders and pull in the waist. A$50 Founders price.
Shop the tee