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An overview of the ISO 216 envelope size format standard, including definition of C series envelope sizes (C3, C4, C5 etc). The purpose of this site is to explain current international standard envelope sizes, covered by the ISO 216 Standard and to provide size charts to allow a quick lookup of sizes.

Liters to Gallons conversions and Gallons to Liters and converter tables for common conversions. These conversion tables are based offer a quick lookup to convert liters to gallons or you can use our quick convert utility.

Dates for UK bank holidays and public holidays including regional variations for England, Scotland, Wales and Northern Ireland. In the UK bank holidays are days when the banks and many other businesses are closed for the day. Included on the bank holidays site are the public holidays, Christmas Day and Good Friday, that have been traditionally respected as holidays.

Pounds (GBP) to Chinese Yuan (CNY) conversions and CNY to GBP and converter tables for common conversions.

Shoe Sizes Conversion For American, British, European, Australian, Japanese & Mondopoint Footwear. With shoe sizes being measured by different systems in various parts of the world, those living and working abroad can often need a quick converter when buying shoes.

Quick lookup for A & B paper sizes and C envelope sizes, with simple conversion between dimensions in mm and inches. Across the world, apart from in North America, paper is sold in standard sizes defined by ISO 216. The key feature of these standard sizes being that if you cut a sheet in half parallel to the shortest edge you will get the next size down.

Easy to use converter for celsius to fahrenheit temperature conversions and fahrenheit to, centigrade conversion also included.