How to Buy a Designer Belt in the Right Size

A belt size is not your trouser size, and buying one as though it were is the most common way to end up with a belt that does not fasten.

The sizes we carry

Leather belts are listed exactly as you will see them on the product page — 90 cm / 36 Inches.

Belt size Suits a trouser waist of roughly
70 cm / 28 Inches 26 in
75 cm / 30 Inches 28 in
80 cm / 32 Inches 30 in
85 cm / 34 Inches 32 in
90 cm / 36 Inches 34 in
95 cm / 38 Inches 36 in
100 cm / 40 Inches 38 in
105 cm / 42 Inches 40 in
110 cm / 44 Inches 42 in
115 cm / 46 Inches 44 in
120 cm / 47 Inches 45 in

How the number is measured

A designer belt is measured from the buckle's prong to the middle hole — not to the end of the leather, and not along the whole strap. The middle hole is the one it is designed to sit on, which leaves you two holes of adjustment in each direction.

That is why the belt number is about two inches larger than the trouser it suits: the belt has to travel around the waistband, not sit against the body.

The simple way to get it right

Take a belt you already own and wear comfortably. Measure from the prong to the hole you actually use. That measurement is your belt size, in the same units. It is more reliable than any calculation from your waist, because it already accounts for where you wear your trousers.

If you have no belt to measure, take your trouser waist and add 5 cm — about two inches.

A note on dress belts

A fine dress belt worn with tailoring sits higher on the waist than a casual belt worn with jeans, and it will measure smaller for the same person. If you are buying both, measure both.

Cummerbunds and fabric waist belts

These are not sized in centimetres. They use the Italian clothing scale — IT46, IT48, IT50 — so take your usual Italian size rather than a belt measurement.