How to Measure Kids' Feet and Find the Right Shoe Size

You blink and their toes are already crunching against the front of their sneakers. Getting the size right is about more than avoiding trips; snug shoes can affect how a young foot develops.

Kids’ feet also move fast. In the first few years they can grow up to two shoe sizes a year, so a pair that fits today can pinch by next month.

These charts convert US, UK, and EU kids’ sizes and pair each with a foot length in inches and centimeters. Below them are three simple ways to measure at home and know exactly when to size up.

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Baby Shoe Size Chart (0 to 12 Months)

U.S.	Euro	U.K.	Inches	CM
0.5	16	0	3.25 inches	8.3 centimeters
1	16	0.5	3.5 inches	8.9 centimeters
1.5	17	1	3.625 inches	9.2 centimeters
2	17	1	3.75 inches	9.5 centimeters
2.5	18	1.5	4 inches	10.2 centimeters
3	18	2	4.125 inches	10.5 centimeters
3.5	19	2.5	4.25 inches	10.8 centimeters
4	19	3	4.5 inches	11.4 centimeters
4.5	20	3.5	4.625 inches	11.7 centimeters
5	20	4	4.75 inches	12.1 centimeters

Toddler Shoe Size Chart (1 to 5 Years)

U.S.	Euro	U.K.	Inches	CM
5.5	21	4.5	5 inches	12.7 centimeters
6	22	5	5.125 inches	13 centimeters
6.5	22	5.5	5.25 inches	13.3 centimeters
7	23	6	5.5 inches	14 centimeters
7.5	23	6.5	5.625 inches	14.3 centimeters
8	24	7	5.75 inches	14.6 centimeters
8.5	25	7.5	6 inches	15.2 centimeters
9	25	8	6.125 inches	15.6 centimeters
9.5	26	8.5	6.25 inches	15.9 centimeters
10	27	9	6.5 inches	16.5 centimeters
10.5	27	9.5	6.625 inches	16.8 centimeters
11	28	10	6.75 inches	17.1 centimeters
11.5	29	10.5	7 inches	17.8 centimeters
12	30	11	7.125 inches	18.1 centimeters

Kids Shoe Size Chart (6 to 10 Years)

U.S.	Euro	U.K.	Inches	CM
12.5	30	11.5	7.25 inches	18.4 centimeters
13	31	12	7.5 inches	19.1 centimeters
13.5	31	12.5	7.625 inches	19.4 centimeters
1	32	13	7.75 inches	19.7 centimeters
1.5	33	14	8 inches	20.3 centimeters
2	33	1	8.125 inches	20.6 centimeters
2.5	34	1.5	8.25 inches	21 centimeters
3	34	2	8.5 inches	21.6 centimeters
3.5	35	2.5	8.625 inches	21.9 centimeters
4	36	3	8.75 inches	22.2 centimeters
4.5	36	3.5	9 inches	22.9 centimeters
5	37	4	9.125 inches	23.2 centimeters
5.5	37	4.5	9.25 inches	23.5 centimeters
6	38	5	9.5 inches	24.1 centimeters
6.5	38	5.5	9.625 inches	24.4 centimeters
7	39	6	9.75 inches	24.8 centimeters

How Do You Measure Your Child’s Feet?

Trace the foot on paper, measure from the back of the heel to the tip of the longest toe, and match that number to the charts above. You do not need a professional fitting every time your child hits a growth spurt. Here are three reliable methods to get the right number at home.

1. Tracing Method

Tracing is a classic method that requires zero special equipment. It is best done in the afternoon when feet are slightly swollen from the day’s activity.

Gather these supplies:

• Paper: A blank sheet larger than their foot.
• Writing tool: A pen or marker.
• Measuring tool: A ruler or tape measure.
• Flat surface: A hard floor (avoid carpet).

Follow these steps:

• Trace the outline: Place the paper on a hard floor. Have your child stand on it with their back straight. Trace around the foot, keeping the pen upright and perpendicular to the paper to avoid adding or subtracting size.
• Measure the length: Step off the paper. Use your ruler to measure the distance from the very back of the heel to the tip of the longest toe. Write this down.
• Measure the width: Measure the widest part of the footprint, which is usually across the ball of the foot.
• Find the size: Compare your length and width measurements to the charts above to determine the correct size.

2. Printable Guide

Many brands like Stride Rite provide printable sizing charts. These are convenient, but you must ensure your printer settings are correct.

Here is what you need:

• The guide: Download a sizing chart (like this one).
• Tape: To secure the paper to the floor.
• Wall: A flat vertical surface.
• Credit card: Often used to verify the scale of the print.

How to do it:

• Check the scale: Before measuring, place a credit card or ruler against the scale check box on the paper. If it doesn’t match perfectly, reprint at 100% scale.
• Align the paper: Tape the paper to the floor so the curved heel line is flush against a wall.
• Measure length: Have your child stand on the paper with their heel against the wall. Mark the line that touches the tip of their longest toe.
• Check width: most printable guides have a “width bar.” Align the foot properly and mark the width to see if your child needs wide or extra-wide shoes.

3. Use a Shoe Size Gauge

If you buy shoes online frequently, investing in a Brannock device or a simple plastic foot gauge can save time.

Here is the process:

• Position the device: Place the gauge on a flat surface. Open the slider all the way.
• Place the foot: Have your child place their heel firmly in the heel cup. Ensure they are standing with weight distributed evenly.
• Slide to measure: Move the slider until it lightly touches the longest toe. Read the size indicated.
• Check width: If the device has a width slider, slide it to the side of the foot to determine the letter width (e.g., M for Medium, W for Wide).

How Often Should You Measure Your Kid’s Feet?

Measure your child’s feet about every two months until age 4, then every four to six months after that. A prospective study of 112 children found feet outgrow a shoe size about every 2 to 3 months between 12 and 30 months of age, then every 4 months up to age 4 ⁽¹⁾. The American Academy of Pediatrics suggests checking the fit about once a month while a toddler is walking, since a first pair of shoes rarely lasts more than 2 or 3 months ⁽²⁾.

After their fourth birthday, growth slows to roughly one size a year, so checking every four to six months is usually enough. Still pay attention to complaints about foot pain or tripping, which can flag a sudden growth spurt between checks.

What Should You Do When Your Child Is Between Sizes?

If your child falls between sizes, always size up. Feet rarely measure exactly to a whole or half size.

A shoe that is slightly roomy allows for growth and movement. One study of 6-year-olds counted a shoe correctly fitted in length when it left 8 to 12 mm of space past the longest toe, which lands close to the thumb’s-width rule most parents already use. Footwear that is too snug can restrict development, cause blisters, and lead to ingrown toenails or foot deformities ⁽³⁾.

How Can You Tell When Your Child’s Shoes Are Too Small?

Red marks that linger, toes that stay curled after the shoes come off, and a new tripping habit are the clearest signs a pair has gotten too small. Kids rarely say a shoe hurts until it really pinches, so watch their feet and their walk instead of waiting for a complaint. Shoes that miss the mark are common: a 2022 study that measured 698 South African schoolchildren found 22% were wearing shoes too short for their feet and 98% were in shoes too narrow ⁽⁴⁾. After a pair comes off, look for these signs:

• Red marks or blisters: Redness across the top of the toes, or blisters on the heel or little toe, points to pressure from a shoe that is too tight.
• Curled or pressed toes: Toes that stay curled after the shoe is off, or press hard against the front, mean the foot has run out of length.
• A changed walk: Tripping, toe-walking, a new waddle, or suddenly refusing a favorite pair often traces back to a cramped fit.
• A failed thumb check: Less than a thumb’s width between the longest toe and the end of the shoe means it is time to size up.

Red marks that fade within a minute or two mean the shoes are just snug, but marks that linger or keep coming back are your cue to move up a size.

What Should You Look for When Buying Shoes by Age?

1. Tips for Babies (0-2 Years)

Babies do not need shoes until they start walking outdoors. In fact, barefoot is best for developing arch strength and coordination ⁽⁵⁾. Once they take those first steps, focus on protection and flexibility.

• Material matters: Choose soft leather, canvas, or cloth. Avoid stiff synthetics that do not breathe.
• The bend test: Take the shoe and try to fold it in half. It should bend easily. If it is stiff, it will hinder your new walker’s natural movement.
• Shop late: Feet swell throughout the day. Try shoes on in the afternoon to ensure they won’t be too tight by dinnertime.
• Check the heel: You should be able to slide your pinky finger between the heel of the shoe and your baby’s foot. If you can’t, it is too tight.

2. Tips for Toddlers (2-5 Years)

Toddlers run, jump, and crash into things. They need durability, but their feet are still developing cartilage and muscle.

• Bring the right socks: If they will wear the shoes with thick winter socks, bring a pair to the store. Measuring with thin liners can lead to a tight fit later.
• Skip the gimmicks: High heels, heavy clogs, or stiff cowboy boots might look cute, but they are tripping hazards. Stick to flat, grippy soles.
• Look for Velcro: Hook-and-loop closures foster independence. Toddlers love putting on their own shoes, and it saves you from tying laces ten times a day.
• Check the toe box: Toddler feet are often triangular, narrow at the heel and wide at the toes. Look for shoes with a rounded, wide toe box to prevent squishing.

3. Tips for Older Kids (6+ Years)

As kids get older, they care more about style, but fit is still king.

• Watch them walk: Have your child walk (and run) around the store. Watch for heel slippage or awkward gait changes.
• The thumb test: Press your thumb down sideways between the end of the shoe and their big toe. You should feel about a thumb’s width of space.
• Ask specific questions: Instead of “do these fit?”, ask “does your pinky toe touch the side?” or “does the heel rub when you jump?”.

Kids Shoe Sizes FAQs

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In Conclusion

Fitting kids’ shoes comes down to three habits. Size to the longer foot, leave about half an inch (roughly a thumb’s width) in front of the longest toe, and re-measure every two months until age 4, then every four to six months after that. When a foot lands between sizes, go up rather than down. And do not wait for a complaint: lingering red marks after a shoe comes off, curled toes, or new tripping in a favorite pair are your cue to measure again before you assume it still fits.