You've found the suit. You love the color. And then you hit the size chart — and freeze. Sound familiar? You're not alone. Sizing anxiety is the #1 reason men hesitate to buy a suit online. But here's the thing: measuring for a suit is a lot simpler than it looks. You don't need a tailor, a fitting room, or any special equipment. All you need is a soft measuring tape, a friend to help, and about five minutes. This guide walks you through every measurement you need to order your Grooms Club suit with total confidence — so when it arrives, it fits like it was made for you. What You'll Need Before You Start A soft fabric measuring tape (not a hardware store tape measure) A friend to help — measuring yourself leads to inaccurate numbers A well-fitting t-shirt and your normal trousers or pants A notepad to write down your numbers That's it. No appointment. No special tools. Let's get into it. The 6 Measurements That Matter for a Suit 1. Chest What it is: The fullest part of your chest, measured across your shoulder blades and around your pecs. How to measure: Stand up straight with your arms relaxed at your sides. Have your partner wrap the measuring tape around the widest part of your chest — directly across your nipple line. Keep one finger between the tape and your body so it's snug but not tight. Note the number in inches. Why it matters: Your chest measurement is the primary number used to determine your suit jacket size. Most suit sizing (38R, 40R, 42R, etc.) is based directly on your chest measurement. Pro tip: Measure twice. Your chest measurement alone determines your jacket size — it's the most important number in your mens suit sizing profile. 2. Waist What it is: The narrowest point of your torso, typically about an inch above your belly button. How to measure: Wrap the tape around your natural waist — not where you wear your pants, but where your torso naturally narrows. Keep the tape level and snug without squeezing. This is your waist measurement. Why it matters: Your waist measurement determines your trouser size. At Grooms Club, our suits feature a stretch waistband designed to accommodate natural variation, so you're not locked into a rigid number — but it's still good to know where you're starting. 3. Hip / Seat What it is: The fullest part of your seat, typically 7–9 inches below your natural waist. How to measure: Stand with your feet together and measure around the fullest part of your seat. Keep the tape level and parallel to the floor. Why it matters: This measurement ensures your trousers have enough room through the seat and thighs. It's especially important if your hip-to-waist ratio is larger than average. 4. Inseam What it is: The distance from your crotch to the floor (or your preferred trouser break). How to measure: Wear your normal shoes. Stand straight and have your partner measure from your crotch seam down to the bottom of your ankle bone — or to wherever you prefer your trousers to fall. Most men prefer a slight break at the top of the shoe. Why it matters: Inseam length determines how your trousers will fall. Too long and they bunch; too short and you're showing too much sock. Getting this right is key to a polished finish. 5. Shoulder Width What it is: The distance across the back, from the edge of one shoulder to the edge of the other. How to measure: Have your partner place the tape at the outermost point of one shoulder (where the shoulder meets the arm), run it straight across your upper back, and end at the same point on the other side. Why it matters: Shoulder fit is one of the hardest things to alter in a suit jacket. If the shoulder seam doesn't sit right at the end of your shoulder, the entire jacket will look off. This measurement is especially useful if you're between sizes. 6. Sleeve Length What it is: The distance from your shoulder seam to your wrist. How to measure: With your arm slightly bent (natural relaxed position), measure from the top of your shoulder down to just past your wrist bone. About a quarter inch to half inch of shirt cuff should show below the jacket sleeve when you're wearing a dress shirt underneath. Why it matters: Sleeve length gives the suit that clean, finished look. Short sleeves feel sloppy; too long hides your hands. Understanding Suit Sizing: Regular, Short, and Long Once you have your chest measurement, you'll also need to choose a fit length. Here's a quick breakdown: Short (S): Best for men 5'5" and under Regular (R): Best for men 5'6" to 5'10" — the most common fit Long (L): Best for men 5'11" and above For example, if your chest measures 40 inches and you're 5'9", you'd look for a 40 Regular. How to Measure for a Tuxedo vs. a Suit Good news: if you're wondering how to measure for a tuxedo, the process is identical. Chest, waist, hip, inseam, shoulder, sleeve — same six measurements, same method. The only difference is the jacket lapel style and whether you're pairing it with a cummerbund or vest. At Grooms Club, our tuxedos and suits use the same size chart, so once you've got your numbers, shopping either is seamless. What If You're Between Sizes? It happens. You might have a 40-inch chest with a 36-inch waist — which can put you between options on a standard chart. Here's how to handle it: For the jacket: Size to your chest measurement. Jacket waist suppression can be adjusted more easily than shoulder width. For the trousers: Size to your larger measurement (usually hip or waist) and note that our stretch waistband gives you built-in flexibility. Trouser length can be hemmed if needed. When in doubt, use our Fit Finder — it takes your measurements and recommends a specific size from our catalog, taking the guesswork out entirely. Grooms Club Sizing: Built to Fit Without a Tailor Here's what makes ordering a Grooms Club suit different from any other online suit purchase: Our suits are engineered with 4-way stretch fabric and a stretch waistband specifically to reduce the need for alterations. That means even if your measurements fall between standard sizes, the suit moves with your body — no tight spots across the back, no pulling at the shoulder, no bunching at the knee. Most of our customers report wearing their suits straight out of the box with zero alterations needed. That's by design. And if you're not 100% satisfied with the fit? Our 30-day money-back guarantee has you covered. Group Orders: How to Get Measurements from Your Whole Wedding Party Coordinating 6 groomsmen across 3 states sounds like a logistical nightmare — but it doesn't have to be. Here's what we recommend: Send each groomsman this measurement guide (or the link to this post) Have each guy note his chest, waist, and inseam Create your event in our group event dashboard and invite your groomsmen Each groomsman enters his measurements and checks out independently — on his own time, from wherever he is You don't have to chase anyone down or coordinate a group shopping trip. The dashboard handles reminders, tracks who's ordered, and keeps everyone on the same look. It's the easiest part of wedding planning you'll experience. Quick Reference: Suit Measurement Guide Measurement Where To Measure What It Determines Chest Fullest part of chest, around shoulder blades Jacket size (38, 40, 42, etc.) Waist Natural waist, 1" above belly button Trouser waist size Hip/Seat Fullest part of seat Trouser seat fit Inseam Crotch to ankle (or desired break) Trouser length Shoulder Width Shoulder edge to shoulder edge Jacket shoulder fit Sleeve Length Shoulder seam to wrist Jacket sleeve length Common Suit Measurement Mistakes (and How to Avoid Them) Measuring yourself: It's nearly impossible to get an accurate chest or shoulder measurement solo. Grab a friend — it takes less than 5 minutes and makes a huge difference. Using the wrong tape: A hardware-store tape measure is rigid and won't follow your body's curves. A soft fabric measuring tape is essential. Measuring over a thick shirt or jacket: Measure over a fitted t-shirt or dress shirt. Bulky layers add fake inches to your numbers. Rounding down: When in doubt, round up. A jacket that's slightly larger can be adjusted; one that's too small can't. Only measuring your chest: Don't skip waist, hip, and inseam. These numbers are just as important — especially if your proportions don't fit the standard template. Ready to Order? Now that you've got your numbers, you're ready for the easiest part. Browse our full collection of wedding suits and tuxedos — in navy, charcoal, light blue, tan, black, grey, and more — all built to fit, own, and wear again. Shop Wedding Suits → Not sure which style is right for your wedding? Check out our guide on How to Choose the Right Suit Color for Your Wedding for color pairing tips by season, venue, and theme.