If you've ever found yourself staring at a size chart online and wondering what is an outseam measurement, you're definitely not alone. It's one of those tailoring terms that sounds way more technical than it actually is, but once you get the hang of it, your clothes are going to fit a whole lot better. Basically, while the inseam gets all the glory in the world of denim and trousers, the outseam is the secret weapon for getting that perfect silhouette.
Where the outseam actually starts and ends
So, let's break it down simply. The outseam is the total length of the outside of your pants. If you're wearing a pair of jeans right now, just run your hand down the outer side of your leg—that's the seam we're talking about. It starts right at the very top of the waistband and goes all the way down to the bottom of the leg opening, also known as the hem.
Unlike other measurements that focus on your body's "cracks and crevices," the outseam is really about the garment's total vertical footprint. It tells you how much fabric is going to be hanging from your waist to your ankles. This is super important because it accounts for the "rise" of the pants. If you're buying high-waisted trousers, that outseam is going to be a lot longer than it would be on a pair of low-rise hip-huggers, even if your legs haven't grown an inch.
The big difference between inseam and outseam
This is where most people get tripped up. We're so used to looking for that second number on a pair of Levi's—you know, the 32x30 or 34x32—and that second number is almost always the inseam. The inseam measures from the crotch point down to the ankle. It's strictly about the length of your leg.
But the outseam is different because it includes the "rise" (the distance from the crotch to the waistband). If you only ever look at the inseam, you might end up with pants that hit your shoes at the right spot but sit way too high or too low on your waist for your liking. By knowing what is an outseam measurement and how it relates to you, you can figure out exactly where the waistband is going to land on your torso while still making sure you aren't tripping over your cuffs.
Think of it like this: the inseam is for the "inside" of your leg, and the outseam is for the "outside" of the entire garment. If you're tall with a long torso, you might need a longer outseam even if your legs are average length, just so the pants actually reach your waist comfortably.
How to measure your outseam at home
You don't need to head to a professional tailor just to figure this out. You can do it yourself in about two minutes. You'll just need a soft measuring tape—the flexible fabric or plastic kind, not the stiff metal one from the toolbox that's gonna poke you.
Measuring on your body
If you want to measure your actual body to see what your "ideal" outseam is, it's best to stand up straight. It's actually way easier if you have a friend help you out because leaning over to see the numbers can mess up the measurement.
- Stand naturally with your feet about shoulder-width apart.
- Decide where you want your pants to sit. If you love high-waisted styles, start the tape at your natural waist (the narrowest part of your torso). If you're a fan of the classic mid-rise, start at your hip bone.
- Drop the tape measure down the side of your leg all the way to the floor, or to the point where you want the pants to end.
- That number right there? That's your outseam.
Measuring a pair of pants you already own
An even easier way is to find a pair of pants you already love. Maybe you have that one pair of chinos that hits your shoes exactly right.
- Lay the pants flat on a hard surface like a table or the floor. Make sure they're smoothed out so there aren't any wrinkles or bunches.
- Run your tape measure along the outer seam (the one on the side of the leg).
- Start from the very top of the waistband and follow the seam all the way down to the bottom of the leg.
- Don't pull the fabric too tight; just let it lay naturally.
This is usually the most accurate way to shop online because you can compare the "flat measurements" provided by a brand to the measurements of something you already know fits you like a glove.
Why the outseam matters for your personal style
Beyond just "fitting," the outseam plays a huge role in how you actually look. It defines your proportions. For example, if you have a shorter outseam, your legs might look shorter, which is sometimes the goal with a cropped, trendy look. On the flip side, a longer outseam on high-waisted pants can make your legs look like they go on for miles.
When you're looking at things like "the break"—which is that little fold of fabric that happens when your pants hit your shoes—the outseam is the measurement that controls it. If you want a "full break" (lots of fabric bunching at the shoe for a traditional look), you'll want a longer outseam. If you want a "no break" look (very clean, modern, and straight), you need to be really precise with that outseam number so the pants end exactly where your shoes begin.
Dealing with different rises and fabrics
One thing to keep in mind is that what is an outseam measurement for one pair of pants might not work for another if the fabric is different. For instance, if you're buying heavy raw denim, the fabric is stiff and won't drape as much. It might "sit" higher on your shoes, so you might actually want a slightly longer outseam to compensate for the wrinkles that form behind the knees (called "honeycombs" in the denim world).
Dress pants, however, are usually made of thinner wool or polyester blends. They drape straight down. If the outseam is even a half-inch too long, they're going to look baggy and sloppy. This is why when you get a suit tailored, the tailor spends so much time pinning the outside of the leg. They're essentially adjusting the outseam to make sure the silhouette is crisp.
Also, don't forget the waistband width. Some leggings or yoga pants have a four-inch-wide waistband. Since the outseam starts at the very top, that wide band is included in the number. If you're used to a thin waistband on jeans, the outseam number on those leggings might look suspiciously high, but it's just because of that extra fabric at the top.
A few final tips for the perfect fit
Shopping online is great, but it's also a bit of a gamble. Most brands will list the inseam, but the better ones—especially higher-end or "slow fashion" brands—will give you the full outseam measurement in their size charts. If you see it listed, use it! It's way more reliable than just the inseam alone.
If you find a pair of pants you absolutely adore but the outseam is way too long, don't sweat it. Hemming pants is the easiest and cheapest alteration a tailor can do. You can usually get it done for ten or fifteen bucks. However, if the outseam is too short, you're usually out of luck. There's rarely enough extra fabric hidden in the hem to let them down more than half an inch. So, if you're between sizes, always go longer. You can always take fabric away, but you can't magically make it appear.
At the end of the day, understanding what is an outseam measurement is just about taking the guesswork out of your wardrobe. Once you know your number, you can stop crossing your fingers every time a package arrives in the mail and start feeling confident that your new pants are actually going to fit the way you want them to. It's a small detail, sure, but it's the kind of thing that makes a massive difference in how you feel when you walk out the door.