What's my size? Senior skirt fitting guide.

A guide to choosing the right size senior skirt.

Watch our quick and simple video showing you the correct and accurate way to measure your child for their school skirt.


Senior skirts are sized by two measurements:  waist size and length of skirt, so you'll need two measurements to get your right size:

1. Waist

You'll need to measure your child's waist for girls skirts, even if the skirt style is designed to sit on their hips, it is the waist measurement that you will need.

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.

2. Skirt Length 

To take your child’s skirt measurement, it’s easier if they wear an existing school skirt or other skirt that they like the length of. Measure from their natural waist down to the hem of the skirt, ensuring the tape measure is in a straight line. You should also check their school’s uniform requirements for skirt length to make sure any item you buy adheres to regulations.


Below you'll find 4 size guides to view depending on the style of skirt you are choosing. You can also download each size guide in a printable PDF, simply click the links below each guide.

Senior Contemporary Skirts (GPS)
Waist size (inches) Length (inches) Age guide
20" 16",18", 20" 10yrs
22" 16",18", 20" 11yrs
24" 16",18", 20" 12yrs
26" 16",18", 20", 22" 13yrs
28" 16",18", 20", 22" 14yrs
30" 18", 20", 22" 15-16yrs
32" 20", 22"  
34" 20", 22"
36" 20"
38" 20"
40" 20"
Senior Back Vent Skirt (GSA)
Waist size (inches) Waist  size (cm) Length (inches) Age guide
22" 56cm 16",18", 20" 11yrs
24" 61cm 16",18", 20" 12yrs
26" 66cm 16",18", 20", 22" 13yrs
28" 71cm 16",18", 20", 22" 14yrs
30" 76cm 18", 20", 22" 15-16yrs
32" 81cm 20", 22"  
34" 86cm 20", 22"
36" 91cm 20"
38" 96cm 20"
40" 102cm 20"
Senior Pencil Skirt (GSC)
Waist size (inches) Waist  size (cm) Length (inches) Age guide
20" 51cm 16",18", 20" 10yrs
22" 56cm 16",18" 11yrs
24" 61cm 16",18", 20" 12yrs
26" 66cm 16",18", 20" 13yrs
28" 71cm 16",18", 20", 22" 14yrs
30" 76cm 18", 20", 22" 15-16yrs
32" 81cm 20", 22"  
34" 86cm 20"
36" 91cm 20"
38" 96cm 20"
40" 102cm 20"
Senior Pleated Skirts (GPB, GST, GKS)
Waist size (inches) Waist  size (cm) Length (inches) Age guide
20" 51cm 16" 10yrs
22" 56cm 16",18", 20", 22" 11yrs
24" 61cm 16",18", 20", 22", 24" 12yrs
26" 66cm 16",18", 20", 22", 24" 13yrs
28" 71cm 16",18", 20", 22", 24" 14yrs
30" 76cm 16",18", 20", 22", 24" 15-16yrs
32" 81cm 16",18", 20", 22", 24"  
34" 86cm 18", 20", 22", 24"
36" 91cm 18", 20", 22"
38" 96cm 20", 22"
40" 102cm 20", 22"
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