A coat size chart lists standard sizes (XS–XXXL or numeric 36–48) against body measurements like chest, bust, and waist in inches or centimeters. For example, a men’s Large typically fits a 40–42 inch chest, while a women’s size 12 fits a 38–40 inch bust.
This guide breaks down the full coat size chart for men and women, shows you how to measure yourself correctly, and answers the exact sizing questions shoppers search for most.
Wrap the tape around the fullest part of your chest or bust, keeping it level across your back. Keep the tape snug, not tight — you should be able to slide two fingers underneath comfortably.
Measure Your Shoulder Width
Measure straight across your upper back, from the edge of one shoulder to the edge of the other. This number is hard to alter after purchase, so get it right the first time.
Measure Your Sleeve Length
Start at the shoulder seam and run the tape down the outside of your arm to your wrist bone, keeping your elbow slightly bent. Coat sleeves typically run half an inch to a full inch longer than a blazer sleeve, since they need to clear a sweater cuff underneath.
Measure Coat Length
Measure from the base of your collar straight down to where you want the hem to fall. A car coat usually ends mid-thigh, a topcoat sits at or just above the knee, and a full overcoat falls below the knee.
Some slimmer-cut brands label a 42 as XL instead of L, so this chart is a baseline, not a universal rule. Always check the retailer’s own size guide when the size is borderline.
US vs UK vs EU Coat Sizing
US Size
UK Size
EU Size
4
8
36
8
12
40
12
16
44
16
20
48
FAQ
How do I know my coat size?
Measure your chest or bust, then compare that number to the brand’s own coat size chart — don’t rely on your usual size across different stores.
What is a size 42 coat?
A size 42 coat fits a chest measurement of about 42 inches, which is usually labeled Large in standard letter sizing.
How to choose the right coat size?
Measure your chest, shoulder, and sleeve length, then match those numbers to the retailer’s chart, sizing up if you plan to layer underneath.
How big is a size 12 coat?
A women’s size 12 coat fits a bust of roughly 38–40 inches, typically labeled Medium to Large depending on the brand.
Is a 42 size L or XL?
A 42 is usually a Large, though some slim-fit brands label it XL — check the specific chart to confirm.
Which size is XL, 42 or 44?
44 is the more common XL chest size; 42 is typically Large.
I am the admin and author of SizesForm, researching, verifying, and explaining measurements, dimensions, weights, and sizes in simple terms to help readers understand everyday comparisons accurately and confidently.
