How to measure shoulder width: across the back, bone to bone

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How to measure, step by step

Wear a thin top with no shoulder pads, or none. Stand straight, arms hanging relaxed, shoulders neither pulled back nor hunched.
Find the shoulder points: press along the top of each shoulder from the neck outwards until you feel the bony tip where the shoulder turns into the arm. That is where a set-in sleeve seam sits.
With a helper, run a soft tape across the back from one shoulder point to the other, following the slight curve of the upper back. Read to the half centimetre.
Alone, use a garment that fits well at the shoulder: lay a shirt, blouse or kurta flat, face down, and measure straight across the back from sleeve seam to sleeve seam. A drop-shoulder garment will not do.
Alone without a garment: hold a length of string across your back with the ends at the shoulder points, mark it, and measure the string against a ruler. Rougher, but within a centimetre with care.
Measure the single shoulder as well: from the side of the neck at the base to the shoulder point. Blouses and jackets use it.
Take the back width and the chest width at the same time, since they are drafted together.

The companion measurements

Use a soft tape over thin clothing. Give body measurements only; the tailor adds ease for the style you choose.

Single shoulder (shoulder length): from the base of the neck at the side to the shoulder point. Blouse and jacket shoulders are drafted from it.
Back width: across the back between the armpit creases, arms slightly forward. Gives reaching room in a fitted blouse or jacket.
Chest width (front): across the front between the armpit creases. Shirts and jackets use both widths.
Neck: around the base of the neck where a collar sits, plus a finger of room. Shirts, bandhgala and Nehru jacket collars need it.
Front shoulder width: shoulder point to shoulder point across the front. Usually 1 to 2 cm less than the back width on the same person; some tailors ask for it.

Shoulder width chart

Size	Women	Men
XS	35 to 36 cm (13.8 to 14.2 in)
S	37 to 38 cm (14.6 to 15 in)	42 to 43 cm (16.5 to 17 in)
M	39 to 40 cm (15.4 to 15.7 in)	44 to 45 cm (17.3 to 17.7 in)
L	41 to 42 cm (16.1 to 16.5 in)	46 to 47 cm (18.1 to 18.5 in)
XL	43 to 44 cm (16.9 to 17.3 in)	48 to 50 cm (18.9 to 19.7 in)
XXL	45 to 46 cm (17.7 to 18.1 in)	51 to 53 cm (20 to 20.9 in)

Body measurements across the back, bone to bone, for a set-in sleeve. Tailors add about 0.5 to 1 cm; drop-shoulder styles are cut wider by design.

Why it matters

The shoulder is the hanger a garment hangs from. If the shoulder width is right, a blouse, kurta, shirt or sherwani falls correctly even when the girths are slightly off; if it is wrong, nothing else can save it. Tailors call it the one measurement they will not guess from a size.

Shoulder width also fixes the sleeve. A sleeve length measured from the shoulder point is only meaningful if the seam will sit at that point, which the shoulder width guarantees. Drop-shoulder styles change both numbers at once, so say which style you want.

Ready-made sizes assume a shoulder that matches the chest. Many people carry broad shoulders on a slim frame or the reverse, which is exactly the body a size chart fails and a tailor fits.

Mistakes that ruin the fit

Measuring across the front only, which reads 1 to 2 cm narrower than the back.
Including part of the arm by measuring beyond the bony shoulder point.
Hunching or pulling the shoulders back while being measured.
Measuring over a padded jacket or a garment with dropped shoulders.
Confusing single shoulder (neck to shoulder point) with shoulder width (point to point).
Rounding to the nearest inch; the shoulder seam shows the difference.

Or skip the tape entirely

Scan yourself with your phone camera on Silai: about 2 minutes, free, no tape and no second person. You get every measurement on this page, and you can see your own sheet right now, no account needed.

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Common questions

How do I measure shoulder width by myself?

Lay a well-fitting shirt or blouse flat, face down, and measure straight across the back between the two sleeve seams. It is the only accurate solo method, because the shoulder points are on your back. A string across the back, marked and measured, is the fallback.

Is shoulder width measured across the front or the back?

Across the back, shoulder point to shoulder point, following the slight curve. The front reads 1 to 2 cm narrower on the same person; if a tailor asks for both, they are drafting a fitted jacket.

What is a normal shoulder width?

About 37 to 42 cm for most women and 44 to 48 cm for most men, but the spread is wide and unrelated to height. Measure rather than estimate; it is the measurement a tailor will refuse to guess.

Does shoulder width change sleeve length?

Yes. Sleeve length is measured from the shoulder point, so a seam cut wider or narrower than your shoulder shifts where the cuff falls. Give both numbers together, and name the style if you want a dropped shoulder.

Do I need shoulder width for a saree blouse?

Yes, along with the single shoulder (neck to shoulder point) and the armhole. Blouse shoulders are narrow and fitted, and a blouse cut 1 cm too wide slides off the shoulder all evening.

Can the phone scan measure shoulder width?

Yes. Shoulder width is one of the 21 measurements the Silai scan reads, and one where the camera usually beats a solo tape, because it sees the whole back at once.

More body measurement guides

Body measurement chart: what size am I? · How to measure your bust or chest · How to measure your waist · How to measure your hips · How to measure your inseam and trouser length · How to measure sleeve length and arm length

Measuring for a garment? Saree blouse measurements · Kurta size chart, sizing and measurements · Lehenga measurements · Salwar kameez measurements · Gown and anarkali measurements · What measurements does a tailor need?