What Size Belt Should I Buy?
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What Size Belt Should I Buy?
Men's Belt Size Guide Australia
Quick answer: what size belt do I need?
Choose a men's belt that is approximately 5 cm (2 inches) larger than your trouser waist size. If you wear size 34 jeans, a size 36 belt is your starting point. The most reliable method is to measure a belt you already own: lay it flat and measure from the fold where the leather meets the buckle to the hole you use most. That measurement is your belt size.
Browse our full range of men's belts at Stewart's Menswear - dress, casual and work styles, with Australia-wide shipping from our Mullumbimby store.
Why is belt size different from pants size?
Trouser sizes measure your actual waist. Belt sizes are built to wrap around your waist and through your belt loops, then fasten with a comfortable amount of give. That is why a belt carries a slightly bigger number than your pants.
When the belt size matches your pants size exactly, it often ends up fastening on the very first hole, which sits tight and looks bunched. Sizing up by 5 cm (2 inches) lets it settle into the middle hole, which is where a belt looks and feels its best.
The same logic applies all the way up and down the range: size 36 trousers, a 38 belt. Size 38 trousers, a 40 belt.
How to measure your belt size at home
There are two reliable methods, but you only need one.
Method 1: Measure a belt you already wear (most accurate)
- Choose a belt that currently fits you well.
- Lay it flat on a table and undo the buckle.
- Measure from the fold where the leather meets the buckle to the hole you use most often.
- That measurement (in centimetres or inches) is your belt size.
Method 2: Use your trouser waist size
If you do not have a belt handy, take your everyday trouser or jeans waist size and add approximately 5 cm (2 inches). That gives you a belt size that will fasten on the middle hole with room to adjust.
The middle-hole rule: how a belt should fit
Most men's belts come with five holes. The aim is to fasten comfortably on the middle hole, the third hole leaving two spare holes on each side.
That middle position gives you room in both directions: for a big lunch, a cooler morning with a jumper tucked in, or simply how your body sits on a given day. When you find yourself living on the very first or very last hole, the belt is telling you the next size up or down would fit you better.
Once fastened, the tail of the belt should reach the first belt loop on your trousers and tuck neatly through the keeper, the small loop near the buckle. A tail that lands around there looks tidy and stays put through the day.
Belt widths explained: dress, casual and work belts
Belt width matters as much as length, because it determines how formal or casual the belt reads.
- Dress belts (30–35 mm): Slim profile, smooth leather finish, neat buckle. These suit trousers, chinos and anything you wear to a wedding, a function or the office. Our Le Serge Australian Made Leather Belt is a standout dress option.
- Casual belts (35–40 mm): A little wider, often with more texture or a larger buckle. Your everyday jeans-and-a-shirt belt for weekends and around town. The Levi's Leather Belt and Rip Curl Cut Down Leather Belt both sit in this category.
A simple rule: match the belt's formality to your shoes. A polished dress shoe pairs with a slim dress belt; a casual boot or sneaker pairs with a wider casual belt.
Top Tip: For more formal dressing, match the leather colour of your belt to your shoes.
Belt sizing in centimetres vs inches in Australia
Australian belts are sold in both centimetres and inches, and some use S, M, L and XL sizing. Use the table below to find your size quickly.
| Inches | Centimetres (cm) | Size |
|---|---|---|
| 30" | 77 cm | S |
| 32" | 82 cm | M |
| 34" | 87 cm | L |
| 36" | 92 cm | XL |
| 38" | 97 cm | XXL |
| 40" | 102 cm | 3XL |
| 42" | 107 cm | 4XL |
| 44" | 112 cm | 5XL |
| 46" | 117 cm | 6XL |
If a label is unclear, we are happy to help you match it to your size either in store or via our online chat.
Buying a belt as a gift? Here is how to get his size right
Buying a belt for your husband, partner, dad or a mate is a practical gift that gets worn every day, and there is a simple way to land the size without spoiling the surprise.
The easiest way is to check the waist size on a pair of his jeans or work trousers and add about 5 cm (2 inches).
We are always happy to help gift buyers choose the right size and style, whether you visit us in Mullumbimby or get in touch online. You might also consider pairing a belt with a quality wallet from our men's wallets and bags range for a complete gift.
How Stewart's Menswear makes belt sizing easy
At Stewart's Menswear in Mullumbimby, we help you find the right belt size in person, with expert advice from people who know their stock. Gerard has been fitting customers in this store for more than forty five years so a quick conversation usually sorts the size, the width and the style in a few minutes.
For locals around Byron Shire, Brunswick Heads and Ocean Shores, free Click and Collect makes it easy to order online and pick up in store. For customers further afield, we offer Australia-wide shipping, with every order packed by real people in our Mullumbimby shop.
If you are dressing for the Northern Rivers climate (warm summers, mild winters) our guide on how to dress for Northern NSW's climate is worth a read alongside this one.
Shop all men's belts at Stewart's Menswear →
Frequently asked questions about men's belt sizing
What size belt should I buy if I wear size 34 jeans?
If you wear size 34 jeans, a size 36 belt is the right starting point. The extra 5 cm (2 inches) lets the belt fasten on the middle hole with room to adjust either way.
How do I measure my belt size at home?
Measure a belt you already wear. Lay it flat, then measure from the fold where the leather meets the buckle to the hole you use most often. That length (in centimetres or inches) is your belt size.
Is belt size the same as my pants size?
No. Belt size is usually about 5 cm (2 inches) larger than your pants size. Trouser sizes measure your waist; belt sizes allow for wrapping through belt loops and fastening with comfortable give.
What size belt should I buy as a gift if I do not know his size?
Take the waist size from his jeans and add 5 cm (2 inches). Stewart's Menswear is always happy to help gift buyers choose the right size and style.
How should a men's belt fit?
A men's belt fits well when it fastens comfortably on the middle hole (the third of five holes), with the tail reaching the first belt loop and tucking through the keeper loop near the buckle. This gives a tidy look and room to adjust through the day.
What is the difference between a dress belt and a casual belt?
A dress belt is slimmer (around 30 to 35 mm) with a smooth finish for trousers, chinos and formal occasions. A casual belt is a little wider (around 35 to 40 mm) with more texture for everyday jeans and weekend wear.
Do belts come in centimetres or inches in Australia?
Australian belts are sold in both centimetres and inches, and some use S/M/L/XL sizing. One inch equals approximately 2.5 cm, so a 36-inch belt is roughly 92 cm. If a label is unclear, we are happy to help you match it to your size.
Where can I buy men's belts near Byron Bay?
You can buy men's belts at Stewart's Menswear in Mullumbimby, a short trip from Byron Bay, Brunswick Heads and Ocean Shores. We stock dress, casual and work belts, offer friendly fitting advice in store, and ship Australia-wide for online orders. Browse our belts collection here.