Men’s Suit Jacket Sizes: Charts & Sizing Guide

Find out how to select exactly the right suit jacket size, shape and style for you. Learn the easiest way to measure yourself for a suit jacket. Also, you will find handy charts to convert sizes between US, UK and EU blazers, sport coats and suit jackets.

Men’s Jackets at a Glance

  • To determine your suit jacket size, measure the circumferences of your chest, sleeve and neck, as well as sleeve length.
  • The classic suit jacket is typically paired with suit pants in a fabric, weave, color and pattern that perfectly matches. Although made from a number of natural, synthetic and blended materials, the most popular is fine wool, with lighter cotton or linen often preferred for summer or warmer climates.
  • On the casual to formal spectrum, blazers fall between sport coats and suit jackets. As a result, they feature all-around versatility and have become an extremely popular component of a business casual ensemble.

Find our full Suit Size Guide incl. Suit Size and Conversion Charts here.

Suit Jacket Size Chart

SizeChest (Inch)Waist (Inch)Neck (Inch)Sleeve (Inch)
XS32 - 3426 - 2813 - 13.531 - 32
S35 - 3729 - 3114 - 14.532 - 33
M38 - 4032 - 3415 - 15.533 -34
L41 - 4335 - 3716 - 16.534 - 35
XL44 - 4638 - 4017 - 17.535 - 36
XXL47 -4941 - 4318 - 18.535 - 37
Suit Jacket Size Chart

Suit Jacket Conversion Chart

Inter­natio­nal Men's SizesUS Sizes Men'sEU Sizes Men'sUK Sizes Men'sFrench Sizes Men'sItalian Sizes Men's
XS3040304030
XS3242324232
S3444344434
S3646364646
M3848384848
M4050405050
L4252425252
L4454445454
XL4656465656
XL4858485858
XXL5060506060
XXL5262526262

Find size charts for boys here.

suit-jacket-sizes

How to Measure a Suit Jacket?

  • Chest: The chest is the most important part of the body when it comes to finding the right size for your sport coat, suit jacket or blazer. Measure around the fullest part of your chest. Hold the measuring tape just under your arms and then extend around your shoulder blades. Remember to hold the tape level and parallel to ground.
  • Waist: Measure just below your waist at the height where you normally wear your pants (approx. 1 inch below your belly button). Ideally, keep one finger between the measuring tape and your body.
  • Sleeve: Measure from the center of the back of your neck, over your shoulder, down the outside of your arm to your wrist. It’s best if you bend your arm slightly while measuring.
  • Neck: Wrap the measuring tape around your neck while keeping a finger between the measuring tape and your neck. Alternatively, take a shirt that fits you well, particularly in the collar, lay out flat, and measure from the center of the collar button to the end of the collar buttonhole.
How to measure suit jacket size

Blazer Size Chart

SizeChest (Inch)Waist (Inch)Neck (Inch)Sleeve (Inch)
XS32 - 3426 - 2813 - 13.531 - 32
S35 - 3729 - 3114 - 14.532 - 33
M38 - 4032 - 3415 - 15.533 -34
L41 - 4335 - 3716 - 16.534 - 35
XL44 - 4638 - 4017 - 17.535 - 36
XXL47 -4941 - 4318 - 18.535 - 37
Blazer Sizing Chart

Sport Coat Sizes

SizeChest (Inch)Waist (Inch)Neck (Inch)Sleeve (Inch)
XS32 - 3426 - 2813 - 13.531 - 32
S35 - 3729 - 3114 - 14.532 - 33
M38 - 4032 - 3415 - 15.533 -34
L41 - 4335 - 3716 - 16.534 - 35
XL44 - 4638 - 4017 - 17.535 - 36
XXL47 -4941 - 4318 - 18.535 - 37

FAQ

Blazer vs. Sport Coat

Blazers and sport coats, while similar, serve different purposes in men’s fashion. A blazer is more formal than a sport coat and offers great versatility, often forming part of a business casual look. They’re typically standalone pieces, not paired with matching pants like a suit jacket, and come in a variety of fabrics and colors today. Sport coats are less formal than blazers, originally designed for outdoor activities like hunting. They’re made from robust fabrics like tweed and often feature more colorful and pronounced patterns. Check our suit jacket guide for more information.

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Blazer vs. Suit Jacket

Blazers and suit jackets, though both essential pieces in a man’s wardrobe, have distinct differences. A suit jacket, as part of a set, is usually more formal and made from finer, matching fabric with the trousers. It’s traditionally worn in professional or formal settings. On the other hand, a blazer is a standalone piece offering versatility. It doesn’t come with matching pants, making it less formal than a suit jacket. Its design allows it to be paired with different types of pants and shirts, suitable for a semiformal or business casual look. So, while a suit jacket underscores formality and uniformity, a blazer offers flexibility and variety in styling. Check our suit jacket guide for more information.

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Suit Jacket Size Chart

A suit jacket size chart lists sizes based on chest measurements and fit. The number in the jacket size represents your chest measurement in inches. The letter following it stands for the fit: ‘S’ is short, ‘R’ is regular, and ‘L’ is long, based on your height. Check your chest measurement and match it with our suit jacket size chart to find your size. Then, select the right fit based on your height and how you want the jacket to sit.

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