- This is NOT your trouser size!
- You should measure around the point of your belly button.
- Breathe out naturally and measure in inches.
- Pull the tape together but not tight.
Pint 4% Beer = 2.3 units
25ml 40% spirits = 1 unit
250ml 12% wine = 3 units
330ml bottle of 5% lager = 1.7 units