How to Measure Chest Size for Suits, Jackets, and Shirts
The chest measurement is the foundation of jacket and shirt sizing. Here's how to measure it correctly for the perfect fit.

How to Measure Your Chest: Step-by-Step Guide
Remove or wear only a thin undershirt for accurate measurement
Stand straight with your arms relaxed at your sides
Wrap the measuring tape around the fullest part of your chest
For men, this is typically at nipple level; for women, across the fullest part of the bust
Keep the tape parallel to the ground all the way around
The tape should be snug but not tight - you should be able to breathe comfortably
Add 1-2 fingers of space (about 2-5 cm) depending on preferred fit
Take a normal breath and measure at the end of a normal exhale
Progress: Step 1 of 8
Common Mistakes When Measuring Chest Size
- âMeasuring over thick clothing or multiple layers
- âHolding breath or inflating chest during measurement
- âTape slipping up or down from the fullest part
- âNot adding enough ease for movement and comfort
Professional Tips for Measuring Chest Size
- âThis is the most important measurement for jacket sizing
- âActive individuals should add more ease (space) for movement
- âFor a slim fit, add 2-3 cm; for classic fit, add 4-5 cm
- âMeasure multiple times throughout the day as your body can expand slightly
Measuring for a dress shirt
A shirt is cut closer than a jacket, but not tighter through the chest â the ease is just distributed differently. Measure at the fullest point with your arms down and do not pull the tape in. A shirt made to a compressed chest measurement pulls at the button placket the first time you sit down.
Shirt sizes are written as collar/sleeve â a â16/34â is a 16âł collar with a 34âł sleeve. If you are having one made rather than buying off a shelf, neither number gets rounded to a stock size.
Nathan Tailors makes shirts to these measurements from $39â$59 (garment only; shipping quoted separately). See the cloths and prices or send us your measurements.
Related Measurements
Ready to Get Measured?
Submit your measurements online or visit us in Hoi An for a professional fitting.
Don't have a measuring tape?

Soft Tailorâs Tape Measure â 60 in / 150 cm, dual scale
A flexible cloth body tape with both inches and centimetres â the exact kind we use in the workshop. Sixty inches covers any chest, waist, or hip. Grab two so you can hold one taut while you read the other.
As an Amazon Associate, Nathan Tailors earns from qualifying purchases â at no extra cost to you. Price is approximate; see Amazon for the current price.