Sports Jersey Size Guide
Find your perfect jersey size across NFL, NBA, MLB, NHL, and soccer. Enter your chest measurement, select your fit preference, and see the recommended size for every major sports league instantly.
How Sports Jersey Size Guide Works
Find your perfect jersey size for NFL, NBA, MLB, NHL, and soccer. Enter your measurements and get the right size across all major sports leagues. Use the tool above to get your results instantly — everything runs in your browser with no data sent to any server.
How to Measure for a Sports Jersey
Getting the right jersey size starts with an accurate chest measurement. Use a flexible measuring tape and wrap it around the fullest part of your chest, just under your armpits. Keep the tape snug but not tight, and make sure it stays level all the way around your back. Stand naturally and breathe normally while measuring. Write down the number in inches or centimeters. If you are between two sizes, the fit preference toggle above helps you decide — choose "tight" for a game-day athletic look, "regular" for everyday wear, or "loose" for layering over hoodies and casual comfort. Women should measure across the fullest part of the bust, and youth sizing typically corresponds to age and chest measurements combined.
Authentic vs Replica vs Limited Jerseys
Sports jersey types differ in construction, fit, and price. Authentic jerseys are identical to what players wear on the field or court. They use vapor-knit or elite fabrics, feature stitched-on tackle twill numbers, and have a tailored athletic cut that runs slimmer than consumer sizes. Replica jerseys (also called "Game" jerseys in Nike's NFL line) are designed for fans. They use screen-printed numbers, looser relaxed-fit cuts, and breathable but standard polyester fabric. They are the most affordable option and the most popular. Limited jerseys sit between authentic and replica — they feature twill numbers like authentics but use a standard consumer fit like replicas. When choosing between types, remember that authentic jerseys tend to run one size smaller than replicas, so size up if you prefer an authentic with a relaxed feel. This guide provides sizing for the standard consumer (replica/limited) fit, which is what most fans purchase.
Sizing Tips for Each League
Each league has slightly different sizing conventions. NFL jerseys tend to run large because they are designed to accommodate shoulder pads underneath for on-field use, so fans often find their regular size comfortable even in a replica. NBA jerseys are sleeveless and designed for freedom of movement, so they have wider armholes and a boxier cut — if you want a closer fit, consider sizing down. MLB jerseys use a button-front design similar to dress shirts, so chest measurement is the primary factor. NHL jerseys are the roomiest of all because they are traditionally worn over hockey pads, making them ideal for layering. Soccer jerseys run the tightest of all major sports leagues because they are designed for aerobic performance with no equipment underneath — if you are used to American sizing, you may want to size up one for soccer kits. Weight, height, and personal preference all play a role, but chest circumference remains the single most reliable measurement for finding your size across all leagues.
Frequently Asked Questions
How do I measure my chest for a jersey?
Wrap a flexible measuring tape around the fullest part of your chest, just under your armpits. Keep the tape level and snug but not tight. Stand naturally and breathe normally. Record the measurement in inches or centimeters.
Do NFL jerseys run big or small?
NFL replica and game jerseys tend to run true to size or slightly large, since they were originally designed to fit over shoulder pads. Most fans find their standard size comfortable. Authentic Nike Vapor jerseys run slimmer and tighter.
What is the difference between authentic and replica jerseys?
Authentic jerseys match the on-field product with stitched tackle twill numbers, premium vapor-knit fabric, and a tailored athletic cut. Replica jerseys use screen-printed numbers, standard polyester, and a relaxed consumer fit at a lower price point.
Should I size up for a soccer jersey?
Yes, if you are used to American sportswear sizing. Soccer jerseys are designed for athletic performance with a slimmer European cut. Most Americans find sizing up one from their usual size gives a more comfortable fit.
Are NHL jerseys the same size as NFL jerseys?
NHL and NFL jerseys use similar size ranges (S through 2XL with the same chest measurements), but NHL jerseys tend to have a boxier, roomier cut because they are designed to be worn over hockey pads. An NHL medium will feel looser than an NFL medium.
Can I use this guide for women and youth sizes?
Yes. Select Women or Youth from the gender dropdown to see size charts tailored to those fits. Women sizes account for a different chest-to-waist ratio, and youth sizes correspond to smaller chest measurements typical of children and teens.