Kien Weil Company. A prominent manufacturer of high-quality gas-powered airsofts.

Kine Well Company, Ltd. Manufacturer of airsoft guns, specialising mainly in gas powered models.

Karaoke World Champions, the world finals for karaoke in Finland.

KWC calculates the bit count required to represent a specified number of combinations. It additionally calculates key width in platform bytes , actual number of combinations covered by that many bits, and the difference and ratio of requested and actual coverage.