Size Guides – How to take your child’s measurements for their school uniform

There are five important measurements you’ll need for any school uniform purchase: waist, chest, leg, height and collar. All of them are easy to take using our guides. Use a flexible tape measure if you can – if you don’t have one, use a piece of string to take each measurement, lay it flat and then measure the length with a standard tape measure.

Below is an introduction to each key measurement, on the right you’ll find some helpful videos with step by step instructions.


Your child’s waist measurement is needed for buying trousers and skirts, or any garment for the lower half of their body (including sportswear). Even if the garment is designed to sit on their hips – or they decide to wear it there – the waist measurement is what you should base your size selection on.

Measure your child’s waist by finding the narrowest part of their torso; this is normally a couple of inches above their hip bone and often, but not always, in line with the bellybutton. If your child has no natural narrower part to their torso, take their waist measurement from about halfway between the bottom of their rib cage and the top of their hip bone. Pull the tape measure so it’s snug but not tight against their waist and make sure they’re not holding their breath! You don’t need to add anything to the measurement for comfort as good quality school uniform will be designed with a little bit of ‘ease’ included.