Hair Length Calculator

Hair Extension and Wig Length Chart by Height

Choose your height and a length from 10 to 34 inches, and the silhouette adjusts to your proportions. It works as a hair extension length chart or a wig length chart because the starting point differs: on a wig the measurement begins at the crown, and on hair extensions it begins at the weft around ear level, so the same number reaches lower on an extension. Landmarks from chin to knee help you picture the result.

How Long Is 20 Inch Hair on Me?

It depends on your height and your texture. Straight hair keeps its full stated length, but body wave hangs about 90% of that, deep wave about 80%, and curly about 78%. Coily and kinky-curly curl patterns shrink the most at roughly 72%. So 20 inches of curly hair hangs about 15.6 inches once it springs back. Long curly extensions need a bigger number on the label to match a shorter straight piece. Enter your height and see where 18 inch or 20 inch hair falls on you.

Can I Get Hair Extensions for Volume and Not Length?

Yes. Pick a length close to your own natural hair and the added density thickens what you already have without changing where your ends sit. Clip-in hair extensions work well for this because they layer fullness into a section you want to build up. Our volume guide walks through each method for adding thickness with extensions and what to expect.

Do Longer Lengths Need More Bundles?

They do. As hair gets longer, the same weight of sew-in hair extensions covers less area, so longer installs look thin if you stay with the same bundle count. Our Bundle Calculator tells you the right number for your chosen length. Results from both tools are approximate because bodies vary, and styling changes how hair falls.