Key Takeaway
How to measure belt size, in one line: it's the length from the fold at the buckle to the hole you use — not the tag in your jeans and not tip-to-tip. Measure a belt you already wear, or run a tape through your belt loops, and round up. If all you have is a pant size, add two inches. Our crocodile belts list the waist range each size fits, so match that range to your tape, not to your trousers.
The pants you're wearing are probably lying to you. When Esquire put a tape measure on men's trousers in 2010, a pair of Old Navy pants labeled 36 measured 41 inches, Dockers' 36 came in at 39.5, and Haggar and Gap were selling 39-inch waists as 36. Which is the first reason "just buy your pant size" is how men end up with a belt that doesn't fit.
Here's how to measure belt size properly. A belt's size is the distance from the point where the strap wraps the buckle to the hole you fasten it on — the industry convention is the middle of five holes — and it's usually about two inches bigger than your pant size because the belt sits outside the pants. Below: the three ways to measure (best first), a belt size chart in inches and centimetres, how width and tail length work, and how our own crocodile belts are labelled so you can pick the right one without guessing.
Belt Size vs Pant Size — Here's the Gap
Almost every belt maker tells you the same thing in slightly different numbers. Belts.com says to add two inches to your pant size — and, in capitals, not to order your pant size. B.D. Jeffries, who make alligator and crocodile belts (two skins that look alike but aren't), put it as "a man who wears a 32 pant will need a 34 belt." Stetson recommends two to three inches bigger than your usual pants size, and a couple of bespoke makers go to a full three.
Two things create that gap. The belt wraps around the outside of the waistband, so it travels a slightly bigger circle than the pants do. And the number on the pants is marketing as much as measurement — the Esquire test CBS reported found the gap ranged from zero to five inches depending on the brand. So "plus two" is a decent average and a poor rule. If you can measure, measure.
How to Measure Belt Size: Three Ways, Best First
Measure a belt you already wear
Lay it flat. Run the tape from the fold where the leather wraps the buckle bar to the hole you actually use — not to the middle hole of that old belt, and never to the tip. Bullhide Belts' instruction is the clearest we've seen: "measure it from where the buckle attaches to the leather (the fold) to the hole most used... round up if you measure odd." If you get 37, order a 38. That number is your belt size.
Run a tape through your belt loops
Put on the pants you'll wear the belt with, thread a soft tape through every loop and pull it as snug as you'd wear the belt. That reading already includes the waistband, so it's a belt measurement, not a body one. Between sizes? Round up — Belts.com and most makers say the same, because a belt that's an inch long still has a hole; a belt that's an inch short has nothing.
Pant size plus two — the fallback
Only if you have no tape and no belt. Take the waist size you wear most, add two, and round to the nearest even number. It's the method the vanity-sizing problem hits hardest, so if the belt is a gift and you can't measure, pick the larger of the two sizes you're debating.
What the Number on a Belt Actually Means
The cleanest written standard we found is Johnston & Murphy's product specification: "The size of the belt is measured from the point where the buckle is attached to the center of the third size hole," with "five size holes spaced 25.4mm (1") apart." A size 36, in other words, puts 36 inches between the buckle fold and the middle hole, and gives you 34 to 38 across the five holes. Chadwick, a British bespoke maker, explains why the middle hole is the target: it leaves "adjustment either way if ever needed."
It isn't universal. Some brands — MORJAS, for one — measure from the end of the buckle rather than the leather fold, which adds the hardware to the number, and not every belt has five holes an inch apart. So when a brand publishes its own measuring diagram, that diagram beats any general rule — including this article.
Belt Size Chart: Pant Size to Belt Size to Centimetres
The left column is the fallback (pant size plus two). The right columns are what a belt of that size measures in metric and the continental size it normally corresponds to, using Crockett & Jones's inch-to-centimetre table. The trap to avoid: a 34-inch belt is roughly EU 85, but a man in 34 pants usually needs a 36 belt — EU 90.
| Pant size (in) | Belt size (in) | Belt length (cm) | Continental size |
|---|---|---|---|
| 30 | 32 | 81 | 80 |
| 32 | 34 | 86 | 85 |
| 34 | 36 | 91 | 90 |
| 36 | 38 | 97 | 95 |
| 38 | 40 | 102 | 100 |
| 40 | 42 | 107 | 105 |
| 42 | 44 | 112 | 110 |
| 44 | 46 | 117 | 115 |
💡 Pro tip: A belt measured through the loops at 34 inches is a size 34 belt — the plus-two only applies when you're converting a pant tag. People mix the two and land one size off in either direction.
How Our Crocodile Belts Are Sized (Prong vs Ratchet)
We label belts two ways, and the label tells you which buckle you're getting. Our prong-buckle belts list a size number with a narrow waist range — the brown crocodile belt, for example, runs from size 39 (waist 35"–37") to size 46 (waist 42"–44") in eight steps. The number is the strap length to the fit hole; the bracket is the through-the-loops measurement it suits. Match your tape to the bracket and ignore your pant tag entirely.
Our automatic-buckle belts have no holes. A toothed track runs along the back of the strap and the buckle clicks down it — ratchet makers like Nexbelt point out the track moves in "¼-inch micro-adjustments" where a holed belt jumps an inch at a time, and nothing stretches out of round because no hole is carrying the load. It's why the black crocodile ratchet belt lists wide brackets such as size 44 (waist 37"–42"), and why the 1¼-inch black backbone belt comes in a single length. The trade-off is permanent: a ratchet strap is cut to fit, and leather you've trimmed doesn't grow back, so if you're between brackets, take the longer one.
One exotic-leather habit to unlearn: don't buy tight and expect the belt to give. A specialist alligator maker we checked describes its belts as "minimal stretch — alligator is dense and structured," and crocodile is a similarly dense skin — so don't count on give. Buy the size the tape says. And if the bracket you ordered still isn't right, send it back unworn within 45 days under our return and exchange policy — please don't punch a sixth hole in a crocodile strap. If you're still deciding whether the skin is the real thing, our guide to spotting an authentic crocodile belt covers the tells.
Width, Tail Length and the Loop Test
Width is the second size, and people forget it. 1¼ inches (32 mm) is the dress width — one exotic-belt maker lists it flat-out as "dress/formal wear" — and 1½ inches (38 mm) is the casual standard that, as Arcade puts it, "fits most standard belt loops." Stetson's Western belts are 1½ inches too, so "Western means wide" is less true than it sounds. Our crocodile belts come in both: the dark brown ratchet belt is the 1¼-inch suit width, most of the prong belts are 1½. Before you order either, measure the loops on the trousers you'll wear it with — a 1½-inch strap through 1¼-inch dress loops is the most common mismatch we see.
Then the tail. Once fastened, the strap should run "2–4 inches past the buckle" and end between your first and second belt loop — that's from a 2025 belt-retailer style guide, and it matches what a middle-hole fit produces. A tail that reaches the third loop means the belt is too long; one that won't reach the first loop means you bought your pant size. The buckle itself is a separate decision, and our buckle types guide walks through prong, plate, trophy and biker styles.
Women's belts add a variable men's don't have: where it's worn. A belt at the natural waist and the same belt on the hips can be four inches apart, so measure at the height you'll actually wear it. Our women's crocodile belts use the same size-plus-bracket labels as the men's — the 1-inch pink crocodile belt runs 41 (waist 37"–39") to 45 (waist 41"–43") — so the same tape-through-the-loops method works, just at waist height or hip height depending on the outfit.
Still Not Sure What Size Belt to Get? Pick by Situation
- If you measured 37 through the loops — order 38 on a prong belt, or the bracket that contains 37 on one of ours. Odd numbers round up.
- If your weight moves through the year — the ratchet belt's quarter-inch track is the answer; a holed belt makes you live an inch apart.
- If it's going with a suit — 1¼ inch, dark, plain buckle. The 1½ casual width won't clear dress loops.
- If it's a gift and you can't ask — measure the belt they wear most, fold to used hole, while it's hanging in the closet. Takes ten seconds and beats every rule above.
- If you're torn between two sizes — the bigger one. A long tail is a style problem; a short one is a return.
The best-fitting belt isn't the one that matches the number in your jeans — it's the one whose middle hole matches a tape measure. Get that right and the rest is taste: width for the trousers, skin for the occasion, and a buckle that says whatever you want it to. Tape first, then browse the full belt collection with a number you trust.