In addition to the traditional definition in terms of pounds, the tod has historically also been considered to be ​1⁄13 of a sack, ​1⁄26 of a sarpler, or ​1⁄9 of a wey.
ポンドの伝統的な定義に加えて、トードは歴史的に1⁄13sack、1⁄26sarpler、1⁄9weyと考えられている。