Are Japanese shoe sizes measured in centimetres?

Usually, yes. As of August 2026, an adult shoe marked 25.0 in Japan normally means a nominal 25.0 cm size. That number is more useful than guessing from US, UK, or EU labels, but it is still a size label rather than a guarantee of inside length. Toe shape, width, socks, and the maker's last can change the fit.

What is a US women's size 8 in Japan?

Use about 25 cm as a starting point, not a guaranteed match. Conversion systems differ, and some charts place a US women's 8 closer to 24.5 cm. Measure both feet, check the shop's own chart, and try 24.5 and 25.0 if available. The larger foot and the actual toe room should decide.

Do Japanese clothes run small?

Sometimes, but the label alone cannot answer this. As of August 2026, one Japanese M can have different chest, waist, rise, sleeve, and body lengths from another. Cuts designed for local ranges may feel shorter or narrower, while international chains may use global sizing. Compare your body measurements with the exact product chart.

Can I try clothes on in Japanese stores?

Usually, when the shop has a fitting room. Ask staff before entering and follow the room limit. Shoes normally stay outside a clothing fitting room. Some stores provide a face cover for pull-over tops to protect them from makeup. Underwear, swimwear, discounted goods, and sealed items may not be returnable, so ask before buying.

Can I return the wrong size after leaving Japan?

Do not assume so. As of August 2026, return rules are set by each retailer, and tax-free purchases can have additional handling requirements. Keep the receipt, tags, packaging, and payment card, and ask about exchanges before paying. A store may reject worn, altered, opened, or sale items even when the size is wrong.

Japanese Clothing and Shoe Sizes: Conversion Tables for Shoppers

What number should I start with for shoes?

Japanese adult shoe labels usually start with centimetres. If you already know that your longer foot is about 25.0 cm, begin near a Japanese 25.0 rather than translating through several foreign systems. Measure while standing, wearing the socks you plan to use, because feet spread under weight and one foot is often slightly longer.

Use the table below only to choose the first pair to try. Conversion charts differ by a half size or more, especially between men’s and women’s US sizing.

Foot length / Japan label	US women’s starting range	US men’s starting range	UK starting range	EU starting range
22.5 cm	5.5–6	—	3.5–4	35–36
23.0 cm	6–6.5	—	4–4.5	36–37
23.5 cm	6.5–7	—	4.5–5	37
24.0 cm	7–7.5	6	5–5.5	38
24.5 cm	7.5–8	6.5	5.5–6	38–39
25.0 cm	8–8.5	7	6–6.5	39–40
25.5 cm	8.5–9	7.5	6.5–7	40
26.0 cm	9–9.5	8	7–7.5	41
26.5 cm	9.5–10	8.5	7.5–8	42
27.0 cm	10–10.5	9	8–8.5	42–43
28.0 cm	11–11.5	10	9–9.5	44

The correct check happens on your foot. Stand up, make sure your heel is seated, wiggle your toes, and walk several steps. A shoe can carry the right centimetre number and still pinch because it is narrow, shallow over the instep, or sharply tapered at the toe.

How do I measure my feet in a hotel room?

You need paper, a pen, a ruler or tape measure, and the socks you will wear with the shoes.

Put the paper against a wall on a hard floor.
Stand with your heel lightly touching the wall and your full weight on that foot.
Mark the end of the longest toe. It is not always the big toe.
Measure from the wall edge to the mark in centimetres.
Repeat for the other foot and use the longer measurement.
Measure late in the day if possible, when your feet are more likely to be at their larger everyday size.

Do not automatically add a fixed 1 cm to the result. The appropriate spare room depends on whether you are buying sandals, formal shoes, everyday trainers, or hiking footwear. Use your measurement to find the range, then judge the fitted shoe with the socks and movement you expect.

Fit problem in the shop	What it suggests	Better next move
Toes touch while standing	Too short or toe box too tapered	Try 0.5 cm longer or a rounder toe
Heel lifts badly	Too long, too wide, or wrong heel shape	Try the same length in a different width/cut
Sides press but toe room is fine	Width problem, not necessarily length	Ask for a wider fitting
Instep feels crushed	Shoe volume is too shallow	Try another cut or adjustable lacing

Some Japanese footwear displays width symbols alongside length. Treat them as a clue, not a universal conversion: the actual last and upper material still matter.

Does Japanese S, M, or L equal my usual size?

Not reliably. Clothing letter sizes are category labels, while the useful information is the product’s centimetre measurement chart. A top may list bust or chest, shoulder, sleeve, and garment length. Trousers may list waist, hip, rise, and inseam. Check whether the chart describes the wearer’s body or the finished garment; those are not the same number.

This table is a shopping method, not a universal conversion.

Item	Measure on your body	Also check on the product	Common surprise
T-shirt or shirt	Chest/bust	Shoulder, sleeve, garment length	Body or sleeves may feel short
Jacket	Chest/bust	Shoulder, sleeve, room for layers	Correct chest but tight upper arms
Trousers	Natural waist and hip	Rise and inseam	Waist fits but inseam is short
Skirt	Waist and hip	Finished length	Label fits but hem sits differently
One-piece dress	Bust, waist, hip	Shoulder and total length	One measurement fits while another does not

If a rack has only S, M, L, and XL, start one label above or below your normal size only as a quick experiment. The garment chart and fitting-room result outrank the letter. “Japanese sizes run small” is a useful warning to check, not a formula that always means “buy one size larger.”

What should I check before entering the fitting room?

Look for a sign saying 試着室 (shichakushitsu, fitting room), then show the items to staff. A simple request is:

Shichaku shite mo ii desu ka? — May I try this on?
Mou hitotsu ookii saizu wa arimasu ka? — Do you have one size larger?
Mou hitotsu chiisai saizu wa arimasu ka? — Do you have one size smaller?
Nijuu-go senchi wa arimasu ka? — Do you have 25 centimetres?

Remove outdoor shoes before stepping onto a raised fitting-room platform if the room is arranged that way. Keep makeup away from collars and use a face cover when provided. Return unwanted items to staff or the marked rail rather than replacing them on an uncertain rack.

For shoes, try both feet and walk only in the permitted area. Check the pair itself before paying: the box label, both shoe labels, colour, and left/right sizes should match.

How do tax-free and return rules affect size decisions?

A size exchange is a store policy, not an automatic right. As of August 2026, ask these questions before the cashier completes the sale:

Ask before paying	Why it matters
“Can I exchange the size?”	Some shops allow exchange but not refunds
“How many days do I have?”	The window may end before your trip does
“Must I use this branch?”	Another branch may not accept the return
“Are sale items final?”	Discounted or outlet goods often have stricter rules
“Does tax-free change the process?”	Passport and purchase records may need correction

Keep the receipt, tags, box, packaging, and the card used for payment until you are sure the item fits. Do not wear shoes outdoors or remove clothing tags before deciding. If you are using tax-free shopping, read the current passport and purchase rules in the tax-free shopping guide before checkout.

What is the fastest decision process in a busy shop?

Use four checks in this order:

Measure: foot length for shoes; chest, waist, hip, or inseam for the garment.
Translate only once: use the table to reach a likely Japanese centimetre or letter range.
Read the product chart: confirm the exact item rather than trusting a country-wide stereotype.
Try and ask about returns: movement, width, length, layers, receipt, and exchange deadline.

For shoes, centimetres give you the best starting point. For clothing, your measurements and the exact garment chart are the starting point. In both cases, the label gets you to the rack; the fit check makes the decision.