Even though I use a shirt or existing tunic to pattern from I always measure and write it down. This gives me something to look for while I have a break.
The following measurements can be used for all sizes from smalls to the biggest fighter types. I use this same technique for every thing from tunics and surcoats to gowns and skirts.
Working from the top down measure this way:
Head: 2 measurements; around your head one-half inch above your ears and over the top from the same one-half inch point above the ear.
Neck Opening: Measure your head not your neck. Around the head over the nose because this has to go over there doesnít it now? Add one-half inch for seam allowance - that measurement is your neck measurement for this method of layout as you are working with all four layers of the fabric.
Around the (pardon the expression) fullest part of the following:
Waist: Include the belly (front porch, tummy, you know where I mean!)
Hips: again include the tummy, if it's there.
Length: To figure the amount of material you will need for your field garb; measure the length from the top of your shoulder down the front (over fullest part of chest, front porch or tummy) to the desired spot on the leg at mid thigh, the knees, just below the knees, mid calf or at the floor. Double this measurement and add 6". (Ever wonder what "for good measure" means?) Convert the inches to yards and you have the amount of fabric needed. 36" = one yard (Hey! Knock it off! Some people didn't know that, okay?)
Examples for simple garb: