Yarmulka Size Guide

Find the right fit by brand, shape, and actual measurement—not by the size number alone. The chart below is for iKippah yarmulkas sold by Judaica Square. Other brands may fit differently.

How the sizes work

Every iKippah size is simply a measurement across the top—that is all the number stands for. The sizes are not tied to age, and there is no separate “adult” or “children’s” range; the same size can suit anyone, depending on your head and how much coverage you like. Measure the part of your head the yarmulka should sit on, then match it to the charts below.

iKippah dome sizes

Dome sizes use a numbered label. The number itself is not an inch measurement.

Measurements are approximate. Size availability varies by product.

iKippah flat sizes

Flat styles are labeled directly in centimeters. The flat-to-dome comparison is approximate because the shapes sit differently.

A flat label such as Flat 18 refers to an approximate centimeter measurement; it is not the same naming system as a numbered dome size.

Material can change the fit

The measurements are approximate and taken from cotton yarmulkas. Other fabrics can sit a little differently—linen in particular tends to run larger, so it is worth going a size down.

How to measure

1. Start with a kippah that already fits, when possible. Use a soft measuring tape across the top from one edge to the opposite edge without stretching the material.
2. Match the shape and material. A flat kippah, dome kippah, cotton kippah, and linen kippah can sit differently even when their measurements are close.
3. Compare the measurement—not just the size label. Do not measure around the full head circumference, and do not assume that one brand’s Size 4 matches another brand’s Size 4.

No well-fitting kippah to measure? Use a soft tape across the part of the head the kippah should cover, then contact Judaica Square for help before ordering if the result falls between sizes.

Frequently asked questions

Does iKippah Size 4 mean four inches?

No—the number is just a label, not a measurement. An iKippah Size 4 is about 21 cm, or 8.3 inches, across the top.

Which size should I get?

There is no single right size for a given person; it comes down to your own head and the coverage you like. Measure the spot the yarmulka should cover—or one that already fits you well—and line it up with the charts above.

Do different materials fit the same?

Not exactly. The measurements are based on cotton, so other fabrics can run slightly different. Linen tends to run larger, so it is usually best to go a size down.