Shoe Size Finder — Foot Length to Shoe Size

Measure your foot from heel to longest toe, enter the length, and get your US, UK, EU and Japan shoe sizes.

Foot length (heel to longest toe)

Japan (cm)

Sizes vary by brand by up to half a size. Need a ruler? Print a free ruler.

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Shoe size finder

How to measure your foot for shoe size

Shoe sizes are based on foot length. Measure in the evening, when feet are largest, wearing the socks you'll wear with the shoes. Measure both feet and use the longer one.

How to use it

Put a sheet of paper against a wall and stand on it with your heel touching the wall.
Mark the tip of your longest toe, keeping the pen upright, or ask someone to mark it.
Measure from the edge of the paper to the mark and enter the length above.

Good to know

Each whole US or UK size is 1/3 inch (8.5 mm) of foot length; each EU size is 2/3 cm.
For the same foot, US women's sizes are about 1 size larger than men's (some brands use 1½).
Japan sizes are your foot length in centimeters.
EU sizes measure the shoe's last, about 2 cm longer than the foot: EU ≈ 1.5 × (foot length in cm + 2).
Brands differ by up to half a size, so check the brand's own chart when you can.

Men's shoe size chart

US	UK	EU	Japan (cm)	Foot (in)	Foot (cm)
6	5	38½	23.5	9.33	23.7
6½	5½	39	24	9.5	24.1
7	6	40	24.5	9.67	24.6
7½	6½	40½	25	9.83	25
8	7	41	25.5	10	25.4
8½	7½	41½	26	10.17	25.8
9	8	42½	26	10.33	26.2
9½	8½	43	26.5	10.5	26.7
10	9	43½	27	10.67	27.1
10½	9½	44½	27.5	10.83	27.5
11	10	45	28	11	27.9
11½	10½	45½	28.5	11.17	28.4
12	11	46	29	11.33	28.8
12½	11½	47	29	11.5	29.2
13	12	47½	29.5	11.67	29.6
13½	12½	48	30	11.83	30.1
14	13	48½	30.5	12	30.5
14½	13½	49½	31	12.17	30.9
15	14	50	31.5	12.33	31.3

Women's shoe size chart

US	UK	EU	Japan (cm)	Foot (in)	Foot (cm)
4	2	35	21	8.33	21.2
4½	2½	35½	21.5	8.5	21.6
5	3	36	22	8.67	22
5½	3½	36½	22.5	8.83	22.4
6	4	37½	23	9	22.9
6½	4½	38	23.5	9.17	23.3
7	5	38½	23.5	9.33	23.7
7½	5½	39	24	9.5	24.1
8	6	40	24.5	9.67	24.6
8½	6½	40½	25	9.83	25
9	7	41	25.5	10	25.4
9½	7½	41½	26	10.17	25.8
10	8	42½	26	10.33	26.2
10½	8½	43	26.5	10.5	26.7
11	9	43½	27	10.67	27.1
11½	9½	44½	27.5	10.83	27.5
12	10	45	28	11	27.9
12½	10½	45½	28.5	11.17	28.4
13	11	46	29	11.33	28.8

Kids' shoe size chart

US	UK	EU	Japan (cm)	Foot (in)	Foot (cm)
4C	3½	20½	11.5	4.58	11.6
4½C	4	21	12	4.75	12.1
5C	4½	21½	12.5	4.92	12.5
5½C	5	22½	13	5.08	12.9
6C	5½	23	13.5	5.25	13.3
6½C	6	23½	14	5.42	13.8
7C	6½	24½	14	5.58	14.2
7½C	7	25	14.5	5.75	14.6
8C	7½	25½	15	5.92	15
8½C	8	26	15.5	6.08	15.5
9C	8½	27	16	6.25	15.9
9½C	9	27½	16.5	6.42	16.3
10C	9½	28	16.5	6.58	16.7
10½C	10	28½	17	6.75	17.1
11C	10½	29½	17.5	6.92	17.6
11½C	11	30	18	7.08	18
12C	11½	30½	18.5	7.25	18.4
12½C	12	31½	19	7.42	18.8
13C	12½	32	19.5	7.58	19.3
13½C	13	32½	19.5	7.75	19.7
1Y	13½	33	20	7.92	20.1
1½Y	1	34	20.5	8.08	20.5
2Y	1½	34½	21	8.25	21
2½Y	2	35	21.5	8.42	21.4
3Y	2½	35½	22	8.58	21.8
3½Y	3	36½	22	8.75	22.2
4Y	3½	37	22.5	8.92	22.6
4½Y	4	37½	23	9.08	23.1
5Y	4½	38	23.5	9.25	23.5
5½Y	5	39	24	9.42	23.9
6Y	5½	39½	24.5	9.58	24.3
6½Y	6	40	25	9.75	24.8
7Y	6½	41	25	9.92	25.2

Guide

Three ways to calibrate

Auto-detect your device

The ruler recognizes about 130 phones, tablets, laptops and monitors, including iPhones, Galaxy phones, Pixels and MacBooks.

Instant±1%

Enter your screen size

Enter your screen's diagonal size (for example, 15.6" for a laptop), and the ruler works out the scale from your screen resolution.

Manual±2%

Calibrate with a bank card

Hold any bank card against the outline on screen and move the slider until they match. Bank cards are the same size everywhere: 85.60 × 53.98 mm.

Most Accurate±0.5%

Accuracy

How accurate is the ruler?

How accurate the ruler is depends on how well it knows your screen's pixel density, meaning how many pixels fit in an inch. There are three ways to set it, from most to least accurate:

Bank card (±0.5%): Bank and credit cards are made to one worldwide size, 85.60 × 53.98 mm (ISO/IEC 7810 ID-1). Because every card is exactly the same, matching one on screen gives the most accurate result.

Auto-detect (±1%): The ruler looks up your device's published screen size and resolution. Screens of the same model can differ very slightly, so this is a little less exact. It covers about 130 devices.

Screen size (±2%): You type in your screen size, and the ruler works out the rest from your resolution. Advertised sizes are rounded (a "15.6-inch" screen may really be 15.59 inches), so this is the least exact method. It's a good fallback when you don't have a card.

Reference Sizes

Real-life objects to check your measurements

Use these everyday objects to confirm the ruler is calibrated correctly.

Bank or credit card: 85.60 × 53.98 mm (3.37 × 2.13 in)

A4 paper: 210 × 297 mm (8.27 × 11.69 in)

US Letter paper: 8.5 × 11 in (215.9 × 279.4 mm)

US quarter: 24.26 mm (0.955 in) across

1 euro coin: 23.25 mm (0.915 in) across

AA battery: about 50.5 mm long and 14.5 mm wide

FAQ

Frequently asked questions

How do I find my shoe size from foot length?

Measure your foot from the back of the heel to the tip of the longest toe and enter it above. For US adult sizes, the standard formula is men's size ≈ 3 × foot length in inches − 22, and women's size ≈ 3 × foot length − 21.

What shoe size is a 10-inch foot?

A 10-inch (25.4 cm) foot is about a US men's 8, US women's 9, UK 7 and EU 41.

Should I measure my foot standing or sitting?

Standing, with your weight on the foot, because feet spread under load. Measure late in the day and use the longer foot.

What if I'm between two sizes?

Choose the larger size. For running and hiking shoes, many people go up another half size because feet swell during long activity.

What is a US men's 9 in EU and UK sizes?

A US men's 9 is about EU 42½ and UK 8, for a foot about 26.2 cm (10⅓ in) long. Nike labels it EU 42.5 and adidas EU 42⅔. See the chart below, or open any size for its Nike and adidas equivalents.

Why do Nike and adidas give different EU sizes for the same US size?

Each brand builds its own lasts and publishes its own chart, so the same US size can differ by half to one EU size between brands. When in doubt, go by your foot length in cm.

How do kids' shoe sizes work?

US kids' sizes run from 0C to 13½C for toddlers and little kids, then start again at 1Y to 7Y for big kids. Children's feet grow quickly, so measure every few months.