Race Bib Sizes: Which One Fits Your Race?
Picking a race bib size sounds simple until you start adding things to it. A race logo. A big, readable number. Two sponsors. An emergency contact on the back. Suddenly every inch counts.
Here's a quick guide to race bib sizes: what's standard, what each size is good for, and how to pick the right one for your race.
What size is a race bib?
Most race bibs in the US are about 7.5 inches wide by 5.75 inches tall. It's the standard size from several of the biggest bib printers. Sizes still vary by race: kids' runs often use smaller bibs, and events with lots of sponsors go bigger.
As one race timing company puts it, there isn't one universal race bib size. Here's how the common ones compare.
Common race bib sizes
| Size (width x height) | Where you'll see it |
|---|---|
| 7.5 x 5.75 inches | The US standard, listed by eMedia Group, RunVirt and VS Athletics |
| 7.48 x 5.87 inches | RACE RESULT's US size |
| 8.26 x 5.82 inches | A5, the common international size |
| 5.8 x 4.1 inches | A6, a small format RACE RESULT calls "tiny" |
Sizes for RACE RESULT come from its print data sheet.
The three race bib sizes we print
Compact, 6.5 x 4.75 inches. A good fit for kids' runs, fun runs and races where the design is simple. It still holds a clear number and a race name without overwhelming a small shirt.
Standard, 7.5 x 5.75 inches. The size most runners expect. It fits most 5Ks, 10Ks and half marathons, with room for a big number, your race logo and one or two sponsors.
Large, 8 x 6 inches. A little more room for several sponsor logos, runner names or five-digit numbers. Good for bigger events with more to show.
Every size is numbered in sequence, the back side prints free, and the minimum order is 25 bibs.
What goes on a race bib
- Race name and logo across the top, where photos catch it.
- The bib number, the biggest thing on the bib. It should read clearly from the finish line.
- Sponsor logos in a band of their own, so they don't crowd the number.
- Four pin holes in the corners so the bib stays flat.
- The back side for an emergency contact and medical notes. On our bibs, the back prints free.
How to pick the right race bib size
- Count your logos. One race logo and a sponsor or two fit a standard bib. A row of sponsors needs the large size.
- Count your digits. A 3-digit number fits anywhere. Five digits need more width to stay readable.
- Think about who's wearing it. Kids and smaller runners are better served by a compact bib.
- Leave room at the edges. Pin holes sit a little in from each corner, so keep text and logos away from the edges. RACE RESULT, for example, places holes about a third of an inch in from the edge.
- Use the back. An emergency contact on the back costs nothing extra with us.
Where to wear a race bib
Pin the bib on the front of your shirt, on your chest or stomach, where volunteers and photographers can see it. Use all four corners so it stays flat, and don't fold it or cover it with a jacket. If the race uses chip timing, follow the organizer's instructions, since the bib's position can matter to the timing setup.
Race bib size FAQs
What is the standard race bib size?
The standard race bib size in the US is about 7.5 inches wide by 5.75 inches tall. Several of the biggest bib printers list it as their main size. The international A5 size is a little wider, at about 8.26 x 5.82 inches.
What is a race bib?
A race bib is the numbered tag a runner pins to the front of their shirt. The number identifies each runner at check-in, on the course and at the finish. Most bibs also show the race name and sponsor logos, and many carry emergency information on the back.
Where should a race bib go?
Wear your race bib on the front of your shirt, on your chest or stomach, where it can be seen. Pin all four corners so it stays flat, and don't cover it with a jacket or fold it. For chip-timed races, follow the organizer's instructions on placement.
What size bib is best for a kids' race?
A compact bib works well for kids' runs and fun runs. Our compact size is 6.5 x 4.75 inches, which fits a small shirt and still holds a clear number and race name. Short numbers and a simple design keep it easy to read.
What goes on the back of a race bib?
Many races use the back of the bib for an emergency contact and medical notes, so help can reach a runner fast. Some add a course map or event details. On our race bibs, the back side prints free.
What race bib sizes do you print?
We print three sizes: compact (6.5 x 4.75 inches), standard (7.5 x 5.75 inches) and large (8 x 6 inches). Every bib is numbered in sequence, the back prints free, the minimum is 25, and most orders ship same or next business day.
Get a quote on race bibs
Not sure which size fits? Send us your bib count, number range, race date and any logos at info@waterproofmenu.com, or call (252) 449-4444, ext. 3. We'll help you pick the right size and put a quote together.
More on race bibs: Need Custom Race Bibs Fast? How Rush Orders Work and Waterproof Race Bibs That Survive Rain, Sweat, and Mud.
