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Guides Suit Size Chart & Size Calculator
Need to find your suit jacket and pant sizes without a measuring tape? Our men’s suit size chart is a good place to start.
Last updated: January 6, 2025Copy Link
Using a men's suit size chart won't always result in a perfect fit. It can, but remember: we're not baking, we're cooking. There are variables, and finding your suit sizes is a nuanced business that a single chart cannot accomplish.
Still, the suit size chart you'll find below does a good job of getting you in the neighborhood. We also developed a suit jacket size chart specifically for finding the right jacket length, and our own suit size calculator—the most accurate way to find your suit sizes without actually trying the thing on. Let's get your fit together.
Table of Contents
Suit Size Chart vs. Common Sizes
Suit Size Chart by Measurements
Suit Size Chart vs. Common Sizes
Most of us know casual clothing sizes like small, medium, and large. Converting your casual clothing sizes using a suit size chart is a quick and dirty way to estimate your dress shirt neck and sleeve length, suit jacket chest, and waist sizes for suit pants or tuxedo. The chart below will help you estimate suit sizes.
You'll also need to know your suit jacket length size (the length of the body and arms of your jacket) to buy or rent a suit. Below, find your height range to estimate your correct jacket length.
If you're like these very tall people, you might take issue with this suit jacket size chart for jacket length—it "only" sizes people up to a lofty 7’2”. Those who lack the altitude of sequoiadendron giganteum should have no trouble finding the right jacket length below—one that fits well, and doesn’t make its wearer look like a toddler.
These size charts assume you have the average, standard build, but people have a variety of body shapes and body types. That’s why suit size charts—even this one—are best used for finding a ballpark number for your suit sizes. They're foolproof, but less likely to deliver a perfect fit than a suit size calculator that considers a variety of inputs.
For even more sizing accuracy, try our suit size calculator when you [shop our suits and tuxedos](/content/collections/all-tailoring "Shop all tailor suits and tuxedos at The Black Tux"/index.html).
Suit Size Chart by Measurements
If you're familiar with [how to measure for a suit](/content/blogs/guides/theblacktux.com/blogs/guides/how-to-measure-for-a-suit "How to Measure for a Suit on The Black Tux Blog"/index.html), use a detailed suit size chart by exact measurements instead. The two charts below will help you find your jacket and pants sizes.
How to Read Suit Sizes
Need help understanding any of the letters or numbers on the suit size charts above? Congrats! You are exactly where this mixed-up universe wanted you to be. Let’s break it down by size.
Jacket Chest
Suit and tuxedo jackets are sized in numbers, typically between 34 and 52, plus a letter or two. These numbers relate to the chest size of the jacket (but not your exact chest measurement), and are typically offered in even sizes.
Jacket Length
Jackets come in short (S), regular (R), and long (L) lengths, with some brands offering extra short (XS) and extra long (XL) lengths, too. These lengths usually correspond to your height, though if your arms or torso are longer or shorter than "the average," you may need to make adjustments—ideally to the sleeves, which are easier to tailor.
Pants Sizes
The first number on the pants label is the waist size, while the second is the length (AKA the inseam). Suit pants won’t always list a length—suit pants are often hemmed to length nirvana anyway—but you’ll always have a waist size on the tag. Waist sizes tend to come in even sizing (32, 34, 36, etc.), and if a suit pants inseam is offered, it’ll probably come in even sizes, too.
Casual Clothing vs. Formal Wear
Casual clothing tends to stretch more in places where a suit would not, like the waist. That means your suit pants, which have less give, will likely need to be a larger size than your favorite pair of denim.
But while your waist size number might seem higher than usual, the length number is likely to be a lower (and shorter) number than your jeans. Why? The fabrics used for suit pants don’t bunch up as easily as casual fabrics, so they fit longer. Keeping that pant length in check is important for a modern fit.
Brand-to-Brand Size Differences
Sizing from brand to brand can vary—think +/- a size or length. Don’t let this stop you from shopping a variety of suit brands, but keep it in mind if you do your shopping online—ordering the tag size may not equate to an identical fit.
That’s often why a suit size calculator (like the one we developed) could provide a sizing recommendation that differs from what you might expect.
Suit Size Calculator
The word “calculator” makes me think of too many buttons (looking at you, pre-renaissance Steve Harvey). But a real suit size calculator does exist, has relatively few buttons, and works better than a suit size chart. Ours does, at least.
We ask you simple questions that you probably already know the answers to: height, weight, age, body shape, and shoe size. If you have a particular fit preference (slim, classic, etc.) or know any of your formalwear sizes (your dress shirt or pant size, for example), we’ll use that info, too. If not, that’s fine. Then, using the sizing data gathered from hundreds of thousands of customers, our suit size calculator provides the most probable sizes for your perfect fit.
Try our suit size calculator when you [shop our suits and tuxedos](/content/collections/all-tailoring "Shop all tailor suits and tuxedos at The Black Tux"/index.html).
Try On a Suit for Free
Our calculator is more reliable than any suit size chart, but sometimes you just want to try the damn thing on in the flesh and fabric. That’s why we have over 30 showroom locations across the country where you can choose your look and dial in the fit.
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