Fashion & Sizing Tools

Free tools to help you find your perfect fit, convert sizes, and shop with confidence

Size Converter

Convert clothing sizes between US, UK, EU, Japan, and Australia. Instant conversion for tops, bottoms, dresses, and shoes.

Get your exact body measurements using just your phone camera. 99% accuracy in 30 seconds. Works for all body types.

Complete guide to finding your size and understanding fit

Articles on fit, sustainability, and fashion technology

Learn about slow fashion and sustainable clothing

Knot Fashion is making yoga pants cut to your body — one scan, one pattern, no size chart. Join the waitlist for founding access.

No spam — just Knot product updates when your batch is ready.