How do I measure my head for a wig?

Short Answer

You'll need three measurements: circumference, front to nape, and ear to ear. Knowing your numbers helps you choose a wig that actually fits your lifestyle and comfort needs.

You'll need a soft measuring tape and three key measurements: circumference, front to nape, and ear to ear. Most wigs fit heads between 21-23 inches in circumference, but knowing your exact measurements helps you find the most comfortable fit—especially if you're at either end of that range.

If you've never measured your head before, it might feel a little awkward at first. That's completely normal. You're learning a new skill, and like anything new, it takes a minute to figure out what you're doing. But once you have your numbers, the entire wig buying process becomes so much clearer.

Why measuring your head matters when you're choosing a wig

Wig caps are designed to fit a range of head sizes, but not all caps are created equal. Some brands run small. Some run large. Some have more stretch than others.

When you know your measurements, you're not guessing. You're making an informed decision. That means fewer returns, less frustration, and a better chance that your first wig feels right from the start.

It also helps you understand which cap construction will work best for your lifestyle. If you're between sizes, or if your head shape is longer or wider than average, knowing that upfront saves time and disappointment later.

What you'll need to measure your head for a wig

You don't need anything fancy. A soft fabric measuring tape—the kind used for sewing—is ideal. If you don't have one, you can use a piece of string and then measure it against a ruler.

Find a mirror so you can see what you're doing, especially for the back measurements. If someone can help you, even better. But plenty of women do this solo, and it works just fine.

Pull your hair back or flatten it as much as possible. You want to measure your actual head, not your hair.

The three measurements you need

Circumference: This is the most important measurement. Wrap the tape around your head where the wig will sit—starting at your hairline in the front, going behind your ears, across the nape of your neck, and back to the front. Keep the tape snug but not tight. This number tells you your base size.

Front to nape: Start at your hairline in the center of your forehead. Run the tape over the top of your head, down to the nape of your neck where your hairline ends. This measurement helps you understand the length of the cap from front to back.

Ear to ear across the top: Place the tape at your hairline just above one ear. Bring it over the top of your head to the hairline above your other ear. This shows the width of your head and helps determine how the wig will sit side to side.

Write these numbers down. Take a photo of them on your phone. You'll reference them more than once as you explore your options in any wig shopping journey.

How to use your measurements when shopping for wigs

Most wigs come in standard sizes: petite, average, and large. Average typically fits circumferences of 21.5 to 22.5 inches. Petite is under 21.5 inches. Large is over 22.5 inches.

But here's what many wig buying guides don't tell you: cap construction matters just as much as size. A wig with adjustable straps can accommodate a wider range. A wig with a stretchy cap might feel more forgiving if you're between sizes.

If your measurements put you right at the edge of a size range, consider your lifestyle. Do you want a snug, secure fit for active days? Or do you prioritize all-day comfort and breathability? There's no wrong answer—just your answer.

When you're reading product descriptions, look for sizing charts. Compare your numbers to the brand's specs. And if a wig offers adjustable features—straps, combs, elastic bands—that's extra flexibility built in.

What if your measurements don't match the standard sizes?

Some women have heads that are smaller, larger, or shaped differently than the "average" range. If that's you, you're not alone—and you're not out of options.

Many wigs have built-in adjustment mechanisms that let you tighten or loosen the fit by an inch or more. Some brands specialize in petite or large cap sizes. And if you're working with a wig that's slightly too big, accessories like wig grips or foam inserts can help.

If your head is longer front to back but narrower side to side—or vice versa—you might need to try a couple of styles to see what works. This is part of the learning curve, and it doesn't mean anything is wrong with you or the wig. It just means you're getting to know your own fit.

This is also where community wisdom becomes invaluable. Other women who share your measurements can tell you which brands or styles worked for them.

How to think about fit as part of your decision

Measuring your head is a practical step, but it's also an emotional one. It's one of the first moments where this whole process starts to feel real.

You might feel uncertain. You might wonder if you're doing it right. You might feel a little vulnerable sitting there with a tape measure, learning something you never thought you'd need to know.

That's all okay. You're not just measuring your head—you're preparing yourself to make a confident choice. And confidence doesn't come from getting it perfect the first time. It comes from knowing you have the information you need to move forward.

These numbers are tools. They help you filter options, ask better questions, and feel more in control of a process that can otherwise feel overwhelming. That's the value of taking the time to do this step right.

You're building confidence, one measurement at a time

Learning how to measure your head for a wig is one of those small, quiet acts of self-advocacy. It's you taking charge of your own comfort and clarity. And that matters more than you might realize right now.

You don't have to be an expert. You just have to start. And once you do, the rest of the wig shopping process becomes a little less mysterious and a lot more manageable.

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Frequently Asked Questions

What measurements do I need to find my wig size?

You need three measurements: circumference (around your head), front to nape (over the top), and ear to ear across the top. Circumference is the most important for determining your size.

What's the average head size for wigs?

Most wigs are designed for a 21.5 to 22.5 inch circumference, which is considered average. Petite is under 21.5 inches, and large is over 22.5 inches.

Can I wear a wig if my measurements are between sizes?

Yes. Look for wigs with adjustable straps or stretchy cap construction. Many wigs can accommodate a range of sizes, and accessories like wig grips can help fine-tune the fit.