Previous Page...   Printer Version Science Constants - Drachm (Avoirdupois) Symbol: dr (avdp.) dr. (av.) Value: 1.771845195 × 10-3 kg 0.00390625 lb 0.0625 oz Category: - Units of Mass Description:   [ H O M E ] [ S C I E N C E ] [ M A T H S ] [ A S T R O N O M Y ] [ Download ] [ Shop ] [ Contact ] [ About ]