Tools in This Collection
Clothing Size Chart
Convert between US, UK, EU, and Asian clothing sizes for men and women
Shoe Size Converter
Convert shoe sizes between US, UK, EU, and Japanese systems
Ring Size Calculator
Find your ring size from finger circumference in US, UK, and EU
Bra Size Calculator
Calculate bra size from band and bust measurements
Fabric Weight GSM Chart
Convert between GSM and oz/sq yd and understand fabric weight categories
Sandpaper Grit Converter
Convert between CAMI, FEPA, and JIS sandpaper grit systems
Guides & Articles
Clothing and Sizing Conversion Workflow
International clothing sizes are inconsistent by design — US size 8 dress = UK 12 = EU 38 = Japanese 36. Each country developed its own sizing system independently, and there's no universal standard even within a country (brands size differently). These tools map between the main systems, though always verify with a specific brand's size guide.
The Clothing Size Chart converts between US, UK, EU, and Asian sizing for both men and women across tops, bottoms, and dresses. For shoes, US Women's 8 = EU 39 = UK 6 = 25.5cm foot length. US Men's 9 = EU 42 = UK 8.5 = 27cm. The Shoe Size Converter handles US, UK, EU, and Japanese sizing with adult and children's conversions.
For jewelry, the Ring Size Calculator converts from finger circumference or diameter to US, UK, and EU ring sizes. US size 7 = EU 54 = UK N. Measure your finger with a strip of paper, measure the strip in millimeters, then convert. The Bra Size Calculator calculates band and cup size from bust and underbust measurements. See our guide to measuring bra size at home for the step-by-step process.
For fabric work, the Fabric Weight GSM Chart translates between grams per square meter (GSM) and ounces per square yard. Lightweight fabrics are under 150 GSM (chiffon, lining), medium weight is 150–300 GSM (cotton shirts, denim), and heavy weight is over 300 GSM (canvas, upholstery). The Sandpaper Grit Converter translates between CAMI (US), FEPA (EU/P-grade), and JIS (Japanese) sandpaper grading systems — useful when sourcing materials internationally.
Frequently Asked Questions
How do I convert US clothing sizes to European sizes?
For women's dresses and tops, add 28-30 to the US size to get EU: US 8 = EU 38, US 10 = EU 40, US 12 = EU 42. For men's shirts, EU chest sizes are in centimeters: US S (34-36 chest) = EU 44-46. For pants, EU waist sizes are in centimeters: US 32W = EU 82. The Clothing Size Chart handles all these conversions across categories.
How do I measure my ring size at home?
Cut a thin strip of paper, wrap it around the base of your finger (where a ring would sit), mark where it overlaps, and measure the length in millimeters. That's your finger circumference. Divide by 3.14 for diameter. US size 7 = 57.2mm circumference = 18.2mm diameter = EU 57 = UK N. The Ring Size Calculator converts from any of these measurements.
What does GSM mean for fabric weight?
GSM (grams per square meter) measures fabric density and weight. Lightweight fabrics (under 150 GSM) include chiffon and mesh — sheer and breathable. Medium weight (150-300 GSM) covers most cotton shirts, flannel, and light denim. Heavy weight (over 300 GSM) includes canvas, upholstery fabric, and heavy denim. The Fabric Weight GSM Chart converts to oz/sq yd and shows typical uses for each weight range.
Why do shoe sizes vary so much between US and EU?
US shoe sizes are based on barleycorns (1/3 inch increments) starting from a specific foot length. EU sizes are in Paris points (2/3 cm increments). The systems don't convert evenly, which is why conversions are approximate. US Women's 8 = EU 39, but EU 39 spans a range of foot lengths, so different brands labeled EU 39 may fit differently. Always check the brand's specific size chart.