Birthday Crown Size Chart: Head Measurements by Age

A crown that does not fit is a crown that does not get worn. Most of the disappointment with homemade crowns comes from a band that is slightly too tight or slightly too loose. The fix is a size chart based on head circumference, not on guesswork. This guide gives the chart used in Crown & Thimble · Felt Birthday Crown Pattern Kit and explains how to measure and adjust.
The chart
| Size | Typical age | Head circumference (cm) | Head circumference (in) |
|---|---|---|---|
| Baby | 0-2 | 44-48 | 17-19 |
| Kid | 3-8 | 49-53 | 19-21 |
| Teen/Adult | 9 and up | 54-58 | 21-23 |
Each of the three crown shapes, Classic Points, Scallop and Tiara Peak, comes in all three sizes. The sizes differ in more than band length: the height of the shapes and the width of the front panel are proportioned to the head, so a Baby crown is not simply a shrunken Adult crown.
How to measure a head
- Use a soft tape measure, the kind used for sewing. If you only have a rigid ruler, use a piece of string and then measure the string.
- Place the tape around the forehead, just above the eyebrows and the tops of the ears.
- Run it around the widest part at the back of the head.
- Keep the tape level all the way round. A tape that slopes will read too large.
- Hold it snug, not tight. Read the number where the tape meets itself.
Measure two or three times. A wriggling toddler is a challenge, so enlist help and be quick. If the child will not stay still, measure a favourite hat by laying it flat and doubling the width of the inside rim, or use the measurement from their last birthday plus about a centimetre.
What the age ranges mean
Age is only a rough guide. Head size varies between children of the same age by several centimetres, and also with hair thickness. The Baby range runs from newborn to two years; heads grow rapidly in the first year and slowly after that. The Kid range from three to eight is the widest span, and the adjustable band is what makes one size serve for so long. The Teen/Adult range covers the vast majority of older heads.
Between sizes
If the measurement falls between two sizes, or on the edge of one, go up. A larger crown can be tightened with the elastic, but a smaller crown cannot be loosened. At the edge of a range, the difference is small and the elastic absorbs it.
Understanding the adjustable band
The band is a length of flat elastic threaded through a casing at the back of the crown. Before you stitch the ends together, put the crown on the child's head, pull the elastic until the crown sits snugly, and mark the spot. Then take it off, stitch the ends together at the mark, and trim the extra. The crown can be re-adjusted later by unpicking a few stitches. The assembly guide illustrates the process.
A good fit means:
- The crown sits level, just above the eyebrows.
- It stays on when the child nods or turns her head.
- It does not leave a red line on the forehead.
- You can slide a finger under the band at the back.
Why the print scale matters
The size chart only works if the printed pieces are the right size. A print that is 5 percent too small turns a Kid crown into a Baby crown. That is why every pattern page includes a 2 in / 5 cm square and the kit includes a print check page. Measure it before you cut. If you need to learn more about printing correctly, see the guide to printing a pattern at actual size, or the printable template guide.
Planning ahead
If you plan to make the crown a few weeks before the party, add about half a centimetre to the measurement for growth in babies and toddlers, and rely on the elastic. For older children, the measurement is stable.
Remember that hair changes the answer. A child who wears a thick plait or a large bun on the day needs more room than one with short hair. Measure with the hairstyle in mind.
Quick answers by situation
- A first birthday photo: Baby size, Scallop or Classic Points. See the first birthday guide.
- A school-age child: Kid size, any shape. See the kids' pattern guide.
- A teenager or adult: Teen/Adult size, Tiara Peak for elegance. See the adult guide.
What the kit adds
The chart is the beginning. The kit gives you the pieces for each size at actual size, in A4 and US Letter, with the layer order for each theme and an illustrated guide for assembly. The felt, thread and elastic are not included.
In short
Measure the head, use the chart, choose the larger size when in doubt and let the elastic do the final fitting. The crown will sit properly, and the child will keep it on.
Making several crowns from one chart
If you are making crowns for a class or a family, print the chart on a card and measure each child once. Write the number beside the name, then choose the size for each. Children of the same age often fall into different sizes, so measure rather than assume. For a mixed group of ages, make all crowns in the same shape and colour family but in the right sizes, and the group photograph will look coordinated even though the crowns are different.
Keeping a record for next year
Write the measurement in your crown record along with the date. A child's head grows only a little between birthdays after the age of three, so next year you can compare the numbers and see whether she has moved up a size. The record also saves you from remeasuring a child who is not in the mood, and it makes a sweet detail in a keepsake box: a small card that says how big her head was at six.
A note on safety and comfort
Whatever the size, a crown should never sit so tightly that it leaves a mark, and the elastic should never be pulled to the point of discomfort. If the child complains, loosen it. The adjustable band is there to make the crown comfortable first and secure second. For very small children, supervise the crown and take it off before sleep.