The most accurate way to know your jacket size is to use the chart provided and take your measurements.

How to know your jacket size. It will surely not be surprising to anyone to know that jacket. Sizing for blazers (or sport coats): Before you learn how to measure jacket size, there are a few things you need to know about reading suit jacket sizes.

If you chest width in inch is. For a more relaxed, classic fit, choose the jacket size closest to your actual measured chest circumference. These numbers are typically between 34 and 52.

The first thing you want to measure is your neck. Try to measure from the center of the. Examples are 40r, 38s, 48l, etc.

Now, put them up in the air, and then place them on the sides. The right way to do that is by placing the measuring tape in between your neck and measuring the circumference of it. If you measure 40 inches.

Round up to the next whole number on the tape measure. How to measure yourself for blazers (or sport coats): Before measuring, flatten the fabric across the chest.

If you want to skip the measuring, grab a jacket that fits you well. If you’re not familiar with tailored jacket sizes, use the guide below as a. Please measure it by wrapping the measuring tape around the upper arm, this is the widest part of the hand between elbow and the shoulders.