A Guide to Measurements and Fitting Your Suit


There is nothing worse than a suit that doesn’t fit properly. Sophistication, elegance and style don’t mean a thing if your suit doesn’t fit.

Finding your exact measurements can be time consuming and tricky, and too often that perfect fit is an elusive goal. Luckily for you, we’ve prepared a guide that’ll illustrate how and what to measure, so you’ll know how the ideal suit should look on your body.


There are a few different ways of getting measured — you can take body measurements (highly recommended), measure an existing garment to replicate the fit or visit an mPort mPod to have your body scanned.

When taking body measurements, we recommend getting a friend or family member to measure you to ensure accuracy. There are 14 measurements that need to be taken.

Body measurements

1. Neck

This measurement is essential for anyone ordering a shirt. This should be taken with just one finger between the tape measure and your skin. This is how your collar will feel when your shirt arrives, so if it feels slightly too tight, increase the measurement by 1 cm.

2. Shoulder

This is the most important measurement for jackets. If the shoulders of your jacket don’t fit, your suit will never look as if it were made for you.

This measurement needs to be taken in tandem with your sleeve measurement. We recommend taking both these measurements two or three times to ensure accuracy, measuring both arms in case of difference between arm length.

Shoulder measurement is taken from one shoulder bone to the other, along the top of the shoulders. There should not be any overhang. Mark where the measurement ends with your finger and then measure your sleeve length from that point.

3. Sleeve

Sleeve is measured from the marked point that is determined when measuring the shoulder. The sleeve measurement is taken to the wrist bone.

Traditionally shirt sleeves are 1 cm longer than jacket sleeves as a suit is determined to be a perfect fit when 1 cm of shirt sleeve is showing out the bottom of the suit jacket sleeve.

4. Bicep

This will determine the width of your sleeves. Bend your arm up at a right angle, but don’t flex your bicep or else your sleeve will be too baggy! Measure around the width of the upper arm with one finger underneath the tape measure.

5. Chest

This is to be taken around the fullest part of the chest. Raise your arms above shoulder height and have the tape measure wrapped under your arms, across your shoulder blades and then over the fullest part of the chest (usually at nipple height) and then relax your arms back down by your sides. The tape measure should be flush over your shoulder blades, and have one finger underneath the tape measure at the front.

6. Front

This will determine the length of your jacket. This is taken from the top of the shoulder, down to between the second and third knuckles on the thumb. For a shorter, more fashion forward length, measure to the second knuckle or for a more traditional length, measure to the 3rd knuckle.

7. Back

This will determine the back lenght of your jacket. This measurement is taken from the base of the neck down to the crease of the buttocks. This measurement will be either equal to, or at most, 3 cm shorter than the front length.

8. Stomach

Stomach measurement is taken at the fullest part of the stomach, the belly button. Make sure the measuring tape is parallel to the floor and even all the way around. Measure this with one finger underneath the measuring tape.

9. Waist

This is the measurement that will determine your pant waist. Measure around where you want your pants to sit, making sure the measuring tape is parallel to the floor and even all the way around.

10. Hip

This measurement is taken around the fullest part of your buttocks. Make sure the measuring tape is parallel to the floor and even all the way around. This measurement is taken with one finger underneath the measuring tape. The hip measurement is usually similar to the chest measurement, within around 10 cm, although each person is different so this is more of a guide than a solid rule.

11. Wrist

This is taken around the wrist bones. Measure flush around the wrist, and then add 1 cm onto the measurement.

12. Crotch

Start by widening your stance and then place the end of the tape measure on the waistband of your pants in the centre of your waist. The person measuring will feed the tape measure between your legs and then measure to the centre back of the waistband. Make sure the tape measure is not dangling down, or pulled too tight between your legs.

13. Thigh

This is the circumference of your thigh, taken where your thigh meets your crotch. Make sure the measuring tape is parallel to the floor and even all the way around. This measurement is taken with one finger underneath the measuring tape. Make sure to measure both legs as there may be a difference between your thighs.

14. Trouser

This is the length of your trousers. Take this measurement with bare feet. Start with the measuring tape at where the waistband of your pants will be. Measure down the side of the leg to the floor. This is your trouser length.

Postural profile

How a suit fits is not just about the measurements. How you stand, sit and the shape of your body can also impact how your suit will fit when it arrives. While height, weight and your postural profile may not seem anywhere near as important as the actual measurements that are taken, not selecting the correct options for your body or putting in incorrect height or weight can be the difference between a perfectly fitting suit and something that looks like it was made for someone else. Your height and weight can help us identify where potential measurement errors may have occurred so that we can attempt to get these rectified before your order is made. The postural selections (chest shape, stomach shape, posture and shoulder shape) all work in tandem with your body measurements to ensure that your suit is completely fitted to your body.

The fit

Now that you have your measurements taken, the hard part is done however there is one final, important choice to make before you can place your order — the fit. This tells the tailors how you like your suit to look on your body. The default fit is Slim — tapered pants and jacket cut to the waist, it is European in style and flattering. Prefer straight cut pants and a jacket cut slightly to the waist? Choose Regular fit. Like your pants dramatically tapered to the ankle and your jacket very tapered in at the waist? Choose Super Slim. If you’re not sure of what fit to go with, get in contact with us and we can help you out!

Replicating garments

Do you already own a garment you love the fit of? We can replicate it! Select “Match my Garment” in the ‘My Sizing’ section to enter the measurements of your existing garment. Follow the instructional photographs, making sure that the fabric is flat and smooth, and enter the corresponding measurement.

Not confident in your measuring skills or don’t own a tape measure? No worries. Just send the item you want replicated to us and we can measure it for you, and then return your garment. Mail your items to: InStitchu, Suite 209, 350 George St, Sydney, 2000.


Want to try something completely different? Visit an mPort mPod body scanner at one of their 19 locations in Australia and 2 locations in the US for a full body scan. Just log into your InStitchu account and link with your mPort account to have your suits tailored to your body scan.