Wear a Fitted Shirt:

It’s best to wear a fitted shirt that you would typically wear under a blazer. This will give a more accurate measurement.

Measuring for a men’s blazer involves several key measurements to ensure a proper fit.

Here’s a step-by-step guide on how to take these measurements accurately:

Tools Needed:

  • A flexible tape measure
  • A notepad and pen for recording measurements
  • A mirror (optional, but helpful)
  • A friend to assist (optional, but helpful)
1 Collar to shoulder

Collar to shoulder

Measure from the end of the right shoulder to the base of the right side of the neck. We define the “side of the neck” as the point at which the vertical plane of the neck intersects the horizontal plane of the shoulder.

2 Shoulder to sleeve

Shoulder to sleeve

Measure from the end of the right shoulder to the “pinch” of the hand. The “pinch” of the hand is found where the base of the thumb and the base of the index finger intersect (approximately 2.5 centimeters above the index finger knuckle).

3 Shoulder to shoulder

Shoulder to shoulder

Measure from the end of the right shoulder to the end of the left shoulder. We define the “end of the shoulder” as where the horizontal plane of the shoulder intersects the vertical plane of the arm (see illustration).

4 Armhole depth

Armhole depth

To measure your armhole circumference, start by wrapping a flexible tape measure around your shoulder and under your armpit, following the path of an armhole. Ensure the tape measure is snug but not too tight, allowing for comfortable movement. Once the tape is in place, record the measurement in inches or centimetres. This ensures a proper fit for the armholes of a blazer.

5 Upper arm width

Upper arm width

Keep your arms by your side and measure around the fullest part of the bicep. You need only measure one side.

6 Forearm width

Forearm width

To measure your forearm circumference, start by relaxing your arm and holding it out slightly bent. Wrap a flexible tape measure around the fullest part of your forearm, which is typically midway between your elbow and wrist. Ensure the tape measure is snug but not too tight. Record the measurement in inches or centimetres. This helps ensure the sleeves of a blazer fit comfortably around your forearms.

7 Chest width

Chest width

Measure around the chest and body at its fullest part (typically right under the armpits and shoulder blades, right across the nipples). Hold the tape against the body tight enough so that it does not slip down, but not so tight that it restricts breathing. It should be “snug”. Make sure the tape is horizontal and the person’s arms are by their side; then take a normal breath and measure. Do not puff out your chest.

8 Waist width

Waist width

Measure around the fullest part of the waist/stomach or right below your bottom ribs, whichever is greater.

9 Front length

Front length

Keep your arms straight at your side, and measure straight down the front from the base of the neck (on either side) to the point of your thumb knuckle.

10 Hip width

Hip width

Measure around the fullest part of your hips and buttocks.

11 Sleeve hole width

Sleeve hole width

Measure around the fullest part of the wrist. You need only measure one side.

13 neck circumference

Neck circumference

Measure around your neck at the height where your collar, if buttoned, would be. This measurement should be taken along the lower section of the neck, below your Adam’s apple and above your sternal notch. The tape should be comfortably touching the skin, with enough room so that you do not feel restricted.