God Wars II uses imperial units to measure lengths and distances. This was partly done because it seemed more appropriate than metric for a non-modern setting, but also because one foot was considered a nicer unit than one metre when it comes to measuring the reach of a weapon (particularly a melee weapon).
The smallest unit of measurement is a foot, which is approximately 30 cm. 3 feet make a yard, which is slightly under 1 metre. 22 yards (or 66 feet) make a chain, which is approximately 20 metres. 10 chains (or 220 yards/660 feet) make a furlong, which is approximately 200 metres. 8 furlongs (or 80 chains/ 1760 yards/5280 feet) make a mile, which is approximately 1.6 kilometres.