The known weight units in the world of the Witcher are:

Items in The Witcher 3 all have explicit weight statistics which factor into the total amount that Geralt can carry. Some common weights are listed below:

Alchemy ingredients 0 Tw3 icon weight.svg
Crafting components 0 Tw3 icon weight.svg
Books 0 Tw3 icon weight.svg
Food and drink 0 Tw3 icon weight.svg
Keys 0.01 Tw3 icon weight.svg
Quest items 0.01 Tw3 icon weight.svg

All other items have individual weights, and especially chest armor can be on the heavy side.

Items in The Witcher 2 all have explicit weight statistics which factor into the total amount that Geralt can carry. Some common weights are listed below:

Books Tw2 icon weight.svg 0
Quest items Tw2 icon weight.svg 0
Crafting diagrams Tw2 icon weight.svg 0.1
Potions Tw2 icon weight.svg 0.2
Oils Tw2 icon weight.svg 0.2
Bombs Tw2 icon weight.svg 0.5
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