curling stone weight

A standard curling stone weighs between 38 and 44 pounds (about 17.24–19.96 kg), with most competition stones around 42 pounds (about 19.1 kg).

Regulations say the stone (including the handle) must not be lighter than 38 lb or heavier than 44 lb, and that range is used at all major events, including the Olympics. Many clubs and broadcasters describe 42 lb as the typical “default” weight you’ll see on the ice.