Beauty & fashion calculators
6 free tools
Simple tools for the size questions that trip everyone up when shopping — what ring size you actually wear, how to read a bra measurement, and how a US 8 maps to a UK, EU, or Australian tag. Measure once, then let these charts do the translating.
Classify your body shape from your bust, waist, and hip measurements using the usual ratio rules.
Find your US band and cup size from your underbust and bust measurements in inches or centimeters.
Convert women's and men's clothing sizes across US, UK, EU, and international S/M/L labels.
Convert women's dress sizes between the US, UK, EU, and Australian sizing scales.
Turn your head circumference into a US fitted hat size and the matching S/M/L/XL label.
Turn a finger circumference or diameter in millimeters into matching US, UK, and EU ring sizes.
Frequently asked questions
Why do my sizes differ between brands?
There's no enforced standard for clothing, so every brand cuts and labels a bit differently. These calculators use widely published charts as a baseline, but the real fit always depends on the maker.
How should I measure at home?
Use a soft cloth tape measure, keep it level and snug without pulling tight, and measure over thin clothing or bare skin. For anything close-fitting, take the measurement twice and use the average.
Are these conversions exact?
They're standard chart conversions, so they get you to the right size to try. Treat the result as a strong starting point and confirm against the specific product's own size chart before buying.