Free tools and open data

Free tools from Kobonat Arab built on real data with clear sources and dates.

• Unified size chart
  Nike, adidas and PUMA in cm from official charts.
• Cosmetics expiry after opening (PAO)
  PAO symbol, best-before and batch codes.
• Shoe size converter
  Convert shoe sizes between EU, US, UK and cm, or enter your foot length to find your size, from Nike's…
• Ring size converter
  Enter the inside diameter or circumference in mm, or your size in any system, to get the US, UK, EU (ISO) and…