How to measure a t-shirt?
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How to measure a T-shirt to choose the right size
Choosing a T-shirt isn't just about the size displayed on a label.
It's about the cut, the drape, the comfort.
And above all, about accurate measurements.
At Bleu mon Jules, we believe in pieces that last.
And for a T-shirt to stay with you for a long time, it needs to fit you really well.
Here's how to measure a T-shirt simply, at home, in a few minutes.
Necessary equipment
Before starting, nothing complicated.
• Your favorite T-shirt, the one that fits just right
• A tape measure (dressmaker's tape measure), or a flat ruler if not available
• A flat, rigid surface: table or floor
Step 1: properly prepare the T-shirt
Lay your T-shirt flat.
Smooth the fabric with your hands to remove wrinkles.
Important:
Do not pull on the fabric.
A stretched T-shirt always skews measurements.
Step 2: the 3 key T-shirt measurements
1. Chest width
This is the most important measurement for comfort.
Where to measure:
Place the tape measure horizontally, just below the armholes, from one armpit seam to the other.
Good to know:
In size guides, this measurement is often called flat width.
If a website indicates a chest circumference, simply multiply your measurement by two.
2. Total length
This determines how the T-shirt drapes on the body.
Where to measure:
From the highest point of the shoulder, at the collar junction, down to the bottom of the T-shirt (the hem).
This measurement avoids unpleasant surprises after washing.
3. Shoulder width
Essential for a balanced cut.
Where to measure:
From one shoulder seam to the other, in a straight line across the upper back.
A well-adjusted shoulder width prevents a dropped-shoulder effect or, conversely, one that's too tight.
Summary table of T-shirt measurements
| Measurement | How to do it | Why it's useful |
|---|---|---|
| Width | Armpit to armpit | Ensures the T-shirt doesn't constrict the chest |
| Length | Shoulder to hem | Avoids a too-short effect after washing |
| Shoulders | Seam to seam | Determines whether the cut is fitted or oversized |
Bleu mon Jules pro tips
Never measure a worn T-shirt
Movements and fabric tension always distort the result.
Anticipate cotton
A 100% cotton T-shirt may shrink slightly.
Allow a margin of 1 to 2 cm, especially in length.
Always compare with the size guide
Report your measurements on the online store's guide before ordering.
Did you know?
A quality T-shirt often has reinforced shoulder seams.
This is what allows the cut to remain stable over time, wash after wash.
Measure well, choose better
Measuring a T-shirt means taking the time to choose a piece that will stay with you for a long time.
A good drape.
Just the right comfort.
And that feeling you never want to let go of.
If you wish, we can help you interpret a precise size guide with your measurements.
Bleu always starts with a good fit.
