Whey (unit) Whey is a unit of weight for butter and cheese.[1][2] DefinitionWhey (Essex) is exactly equal to 236 pounds (107 kg).[1] Conversion1 Whey (Essex) ≡ 59/56 Barrel[1] 1 Whey (Essex) ≡ 236 pounds[1] 1 Whey (Essex) ≡ 107.04779932 kg See alsoWey (unit)References ^ a b c d Cardarelli, François (2003). Encyclopaedia of Scientific Units, Weights and Measures. London: Springer. p. 46. ISBN 978-1-4471-1122-1. ^ "فرهنگ اوزان و مقادير علمي و عملي بين المللي" (PDF). Retrieved 19 May 2019.