Collar Sizes in Centimetres: Why Vaughan Shoppers Keep Buying the Wrong White Shirt

Last updated: September 29, 2026

How to convert collar size centimetres to inches in Vaughan comes down to one exact rule: divide the centimetre figure by 2.54, so a 41 cm collar is 16.14 inches and wears as a 16. Most wrong white shirts are not wrong because the maths is hard. They are wrong because the shopper rounded in the wrong direction, or measured their neck instead of a shirt they already own.

Converting Collar Size Centimetres to Inches, the Vaughan Way

Converting a collar size from centimetres to inches uses the legal definition of the inch in Canada: 2.54 centimetres, exactly. Divide, then round to the nearest half inch, because dress shirt collars are almost always sold in half-inch steps.

If you're a Vaughan professional who has a shirt with a centimetre label in one drawer and an inch label in another, this table is for you. Keep it on your phone.

These figures are straight arithmetic. Labels differ. A brand may call a 40 a 15.75 or round it either way, which is exactly why HADUR prints the inch size beside each centimetre size on its size guide rather than leaving you to guess.

Neighbourhood Facts: Vaughan and Thornhill

Vaughan and Thornhill sit just north of Toronto, and a few plain facts shape how men here buy a white dress shirt.

Why Vaughan Is Different

Vaughan shoppers face a collar sizing problem that a man in a purely inch-sized market simply doesn't. Canada went metric decades ago, but a great deal of menswear sold here still speaks in inches. The result is a wardrobe that mixes both.

In our experience, the men we see around Thornhill and Vaughan often own shirts bought in several places: a department store, a trip abroad, a gift, an online order. One label says 41. Another says 16. They assume those match. Close, but not quite.

Then there's the calendar. A white shirt in York Region works hard across a single year: under a wool overcoat when the January wind cuts across an open parking lot, then alone on a sticky July afternoon at an outdoor wedding reception. A collar that felt fine in winter, with a loose tie and a scarf, can feel tight when the air is heavy and the top button is done up for a ceremony.

The occasions matter too. Men across the Greater Toronto Area wear white shirts for the office, for worship, for weddings, for interviews. Several of those call for a buttoned collar and a tie for hours at a time. That is where a quarter inch stops being theoretical.

Common Problems We See Here

Collar sizing mistakes among GTA shoppers tend to fall into four patterns. None of them is exotic. All of them are avoidable.

1. Treating 40 cm as a 16

A 40 cm collar is 15.75 inches. It sits dead centre between two half sizes. The man who wears a 16 and orders a 40 may find it a touch snug once the button is closed; the man who wears a 15.5 may find it roomy. Neither label lied. The rounding did.

2. Measuring the neck instead of the shirt

A tape around your own neck gives a body measurement. A shirt collar is a garment measurement, and it is meant to be a little larger so you can breathe and fit a finger inside. The HADUR size guide lists measurements taken on the shirt laid flat, so compare like with like: shirt to shirt.

3. Buying for the collar and forgetting the chest

The collar is only one of four numbers. The HADUR size guide also lists chest, back length and sleeve. A perfect 16 collar on a shirt that pulls across the chest is still the wrong shirt. It happens more than people admit.

4. Sizing up to be safe

Sizing up feels cautious. It isn't. A collar that is too large gapes under a tie knot, and a refined spread collar, like the one on both HADUR shirts, shows that gap more than a narrow point collar would, because the collar points sit open and frame the knot.

Honestly, the pattern that surprised us most is how rarely the problem is the customer's neck. It is almost always the label they compared against.

How We Approach This Area

HADUR approaches collar sizing in Vaughan, Thornhill and the wider GTA with a simple habit: start with a shirt the customer already likes. Not a tape around the neck. Not a guess from memory. A shirt.

For the online shopper across Canada and the United States, the method below takes a few minutes and a soft tape measure. For the man near Thornhill, the showroom in Thornhill is open by appointment, where you can hold both shirts side by side.

Camicia or Raffinato for a GTA year

HADUR makes two white shirts, each $40, each with a refined spread collar and a non-iron finish. The Camicia is 100% bamboo, described on its page as breathable and moisture-wicking. The Raffinato is cotton with stretch, made to move with you and hold a crisp line.

Neither one is the universal winner. The Camicia suits the man thinking about a humid summer ceremony or a long day in a warm office. The Raffinato suits the man who reaches, drives, gestures and wants the shirt to look sharp at the end of it. Size both the same way: shirt laid flat, centimetres first, inch size beside it.

For a first order, keep the tags on until you have tried the collar buttoned, with a tie, for a few minutes in front of a mirror. Unworn and in new condition is what makes an exchange possible. For delivery costs to Vaughan or anywhere else, see the shipping policy at checkout, or read the full shipping and returns details.

Care keeps the size you chose

A well-chosen collar deserves careful washing. Wash cold on a gentle cycle, skip bleach and fabric softener, hang the shirt while damp, and use a cool iron if you want extra polish. The non-iron finish on both HADUR shirts helps, but a hanger and a little patience do the rest. That's it.

Our Take After Years of Fitting White Shirts

Knowing how to convert collar size centimetres to inches matters less than people think. The arithmetic is fixed: 2.54, every time. What customers overweigh is the label on an old shirt. What actually matters is the measurement of a shirt that fits.

We would tell a friend in Vaughan the same thing we tell anyone who calls: stop converting in your head. Measure the shirt you love, flat on the kitchen table, and match centimetres to centimetres. The inch size beside it on our guide is there for reassurance, not for guessing.

And one quieter opinion. A white shirt with a spread collar is unforgiving of a gap at the neck, and forgiving of almost everything else. Get the collar right and the rest of the outfit, whether for work, worship or a wedding, tends to follow.

FAQ: Collar Sizes for Vaughan and Thornhill Shoppers

How do I convert a collar size from centimetres to inches if I shop in Vaughan?

Converting a collar size from centimetres to inches means dividing by 2.54, the exact definition of an inch in Canada. A 41 cm collar is 16.14 inches and a 39 cm collar is 15.35 inches. HADUR lists the inch size beside every centimetre size, so Vaughan shoppers can skip the maths.

Is a 40 cm collar a 15.5 or a 16?

A 40 cm collar works out to 15.75 inches, exactly between a 15.5 and a 16. The best way to choose is to measure a shirt you already own, laid flat, and compare it against the HADUR size guide. Shoppers near Thornhill can also compare in person at the showroom by appointment.

Can I try HADUR shirts in person in Thornhill before buying?

HADUR's Thornhill showroom is open by appointment only. Book by calling +1 (647) 490-1901 or emailing hadurclothing@gmail.com, and bring a shirt that fits you well for comparison.

What if I order the wrong collar size online from Vaughan or elsewhere in the GTA?

HADUR accepts returns and exchanges within 30 days on unworn shirts in new condition, whether you ordered from Vaughan, elsewhere in the GTA, or anywhere in Canada or the United States. The customer pays return shipping. Try the collar buttoned with the tags on before deciding.

Sources

1. Legal definition of the inch as 2.54 centimetres in Canada - Weights and Measures Act, Justice Laws Website (Government of Canada)
2. The international inch defined as exactly 2.54 cm - National Institute of Standards and Technology
3. Vaughan as a city in York Region - The Regional Municipality of York
4. HADUR shirts, prices, size guide, showroom and returns details - HADUR official website

• A Customer Asked: "How Do I Measure a Shirt I Already Own?", The Full HADUR Answer
• A Customer Asked: "What's the Difference Between the Camicia and the Raffinato?", Bamboo vs Cotton Stretch, Ex