# Clothing Size Calculator & Converter > Convert clothing, bra, and shoe sizes across US, UK, EU, France, Italy, Japan, and Australia. Find your size from real body measurements, calculate bra band and cup, and switch between metric and imperial — free, in your browser. A single universal size tool. Pick your garment — women's, men's, or kids' clothing, bras, or shoes — and either convert a known size between US, UK, EU, FR/IT, JP, and AU systems, or enter your bust, waist, hip, chest, underbust, height, or foot length to get a recommended size. Bra mode computes the band and cup from your underbust and bust measurements and shows sister sizes; shoe mode converts US/UK/EU with centimetres and millimetres. Everything runs locally with metric/imperial toggles and copy-to-clipboard results. - **Live tool:** https://www.toolnova.org/fashion-tools/clothing-size-calculator - **Category:** Size Calculators (https://www.toolnova.org/fashion-tools) - **Price:** Free - **Requirements:** Runs in a modern web browser · No signup · No install ## What this tool does - Six size systems: US, UK, EU, France/Italy, Japan, and Australia - Women's, men's, and kids' clothing sizes from body measurements - Preferred-fit toggle (snug / regular / loose) that nudges the recommendation - Bra size calculator: band + cup from underbust and bust, with sister sizes - International bra conversion across US, UK, EU, FR, JP, and AU - Shoe size converter for women, men, and kids (US/UK/EU/cm/mm) - Reverse lookup with a valid-size picker for numeric and letter (XS–3XL) sizes - Metric (cm) and imperial (in) toggles with instant conversion - Copy any result, plus printable size tables with a one-tap Print button ## How to use Clothing Size Calculator & Converter 1. **Pick a mode** — Choose Women's, Men's, Kids', Bra, Shoe, or Converter. Each mode is tuned to that garment's real sizing rules rather than a generic formula. 2. **Enter measurements or a size** — For apparel and bras, type your body measurements (bust, waist, hip, underbust, bust, height). For the converter, type a size you already know in any region. 3. **Read every equivalent** — The tool shows the matching size in all systems at once — US, UK, EU, FR/IT, JP, AU — plus, for bras, your band, cup, and sister sizes. 4. **Copy or print** — Use copy-to-clipboard on any value, or open the printable size guide so you can take consistent measurements next time you shop. ## Common use cases - Ordering clothes from a US, UK, EU, or Asian store without guessing the size - Figuring out your bra band and cup from a tape measure - Converting shoe sizes between countries before buying abroad - Dressing kids by height and weight instead of age-only labels - Comparing two brands that use different size scales - Printing a personal size chart to shop faster and return less ## About ### Why clothing sizes are not universal A 'size 8' in the US, UK, EU, France, Italy, Japan, and Australia can mean six different bodies. The numbers are brand- and country-specific labels, not measurements, which is why the same person can be a US 8, UK 12, EU 40, and JP 11. This calculator treats measurements as the source of truth and maps them onto each region's scale, so you shop by centimetres and inches rather than by a number that means something different everywhere. ### How bra sizing actually works Bra size is two numbers: the band (the underbust, rounded to the nearest even number in most systems) and the cup (the difference between bust and underbust). Each extra 2.5 cm / 1 inch of difference moves up one cup letter. The converter also shows sister sizes — bands and cups that hold the same breast volume (for example 34B, 32C, and 36A) — so you can find a better fit when your usual band runs tight or loose. ### A printable size guide you can trust The most reliable size is the one measured on your body, not the one on a tag. Measure bust, waist, and hip for clothing; underbust and bust for bras; and foot length for shoes. Keep the reference table below handy: it lists the common conversions in one place so the next purchase is based on numbers, not hope. ## FAQ ### How do I convert a US clothing size to UK and EU? Women's US sizes run about 4 numbers below UK sizes (US 8 ≈ UK 12) and EU sizes are roughly US + 32 (US 8 ≈ EU 40). Men's US and UK are close (US 40 ≈ UK 40), while EU men's is about 10 higher. The converter shows all equivalents at once so you never have to memorise the offsets. ### How do I calculate my bra size? Measure your underbust (just below the breasts) and your bust (around the fullest part). Round the underbust to the nearest even number for the band. The cup is the difference: about 2.5 cm / 1 inch = A, 5 cm = B, 7.5 cm = C, 10 cm = D, and so on. This tool does the rounding and shows your band, cup, and sister sizes automatically. ### What is a sister size in bras? Sister sizes are bra combinations with the same cup volume but different bands — for example 34B, 32C, and 36A all hold a similar breast volume. If your usual band feels tight, try the sister size with a larger band and smaller cup; if it rides up, go smaller band, larger cup. ### How do shoe sizes convert between US, UK, and EU? For women, EU is roughly US + 31 (US 8 ≈ EU 39) and UK is about US − 2 (US 8 ≈ UK 6). For men, EU ≈ US + 33 and UK ≈ US − 1. Kids' scales differ again. The shoe converter handles women's, men's, and kids' sizes with centimetre and millimetre values so the result is exact, not approximate. ### How do I find my clothing size from measurements? Measure bust, waist, and hip in centimetres or inches, then match them to the regional size chart. Because brands vary, the measurement-based size is more reliable than the tag. The apparel modes return a recommended US/UK/EU size from your bust/waist/hip directly. ### Are Asian (JP) sizes smaller than US sizes? Generally yes. Japanese women's sizes often run one to two sizes smaller than US equivalents, and are given as centimetre-based numbers (e.g. JP 11 ≈ US 8). The converter accounts for these regional shifts so you don't order a size that fits differently than expected. ### Is this clothing size calculator free and private? Yes. All conversions and size calculations run entirely in your browser. Your measurements are never uploaded, stored, or shared — you can use it on any device without an account. --- ToolNova — free, privacy-first browser tools. Most tools process data locally on your device. See https://www.toolnova.org/llms.txt for the full directory.