Convert any size, instantly.
Clothes, shoes, rings and every everyday unit, between UK, US, EU and more. Free, fast and no sign-up.
Recently used
Clothing, rings & accessories
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Women's Clothing Size ConverterConvert women's dress, top and trouser sizes between UK, US, EU, French,…
🤵Men's Suit & Jacket Size ConverterConvert men's suit and jacket sizes between UK/US chest sizes, European,…
👔Men's Shirt Size ConverterConvert men's shirt collar sizes between inches (UK/US), centimetres (EU) and…
👖Men's Trouser & Jeans Size ConverterConvert men's trouser and jeans waist sizes between inches, centimetres,…
🧒Children's Clothing Size ConverterConvert children's clothing sizes between UK age ranges, European height…
🎩Hat Size ConverterConvert hat sizes between head circumference in centimetres (EU), inches, US…
💍Ring Size ConverterConvert ring sizes between UK letter sizes, US numbers, European (ISO) sizes,…
📏Bra Size Calculator & ConverterWork out your bra size from two measurements, then convert it between UK, US,…
Shoes
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Women's Shoe Size ConverterConvert women's shoe sizes between UK, US, European, Japanese and Australian…
👞Men's Shoe Size ConverterConvert men's shoe and trainer sizes between UK, US, European, Japanese and…
👟Children's Shoe Size ConverterConvert children's and baby shoe sizes between UK, US and European sizes,…
Units & measurements
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Length ConverterConvert length and distance between millimetres, centimetres, metres,…
🧍Height Converter: cm to Feet and InchesConvert your height from centimetres to feet and inches, or from feet and…
⚖️Weight ConverterConvert weight and mass between kilograms, grams, pounds, ounces, stone,…
🏋️Kg to Stone and Pounds ConverterConvert your weight between kilograms and stone and pounds, the way UK scales…
🌾Area & Land ConverterConvert land and floor area between acres, hectares, square metres, square…
💧Volume & Liquid ConverterConvert liquid volume between litres, millilitres, UK and US gallons, pints,…
🌡️Temperature ConverterConvert temperatures between Celsius, Fahrenheit and Kelvin for weather,…
🚗Speed ConverterConvert speed between kilometres per hour, miles per hour, knots, metres per…
⛽Fuel Economy ConverterConvert fuel consumption between UK mpg, US mpg, litres per 100 km and…
🛞Pressure ConverterConvert pressure between bar, PSI, kilopascals, millibar (hPa), atmospheres,…
⚡Energy ConverterConvert energy between calories, kilocalories, kilojoules, joules,…
🔋Power ConverterConvert power between horsepower, metric horsepower (PS), kilowatts, watts…
💾Data Storage ConverterConvert data sizes between bits, bytes, kilobytes, megabytes, gigabytes,…
⏱️Time ConverterConvert time between milliseconds, seconds, minutes, hours, days, weeks,…
Reference charts
My Sizes
Why ConvertAnySize?
Shopping from another country, following an American recipe, reading a French property listing or checking a child's size before a birthday: conversions come up every day. ConvertAnySize puts them all in one quick, clean place. Every converter works both ways as you type, every size chart shows the full table, and My Sizes remembers your own sizes on this device so they're ready next time you shop.
Unit conversions use exact international definitions. Clothing and shoe sizes follow the standard conversions most retailers use; brands do vary, so we always show the full chart and your measurements too.