Unit Conversions

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Chapter 5 Unit Conversions

Unit Conversions

Suppose you’ve just measured the length of a wyvern’s wingspan in meters, but your potion recipe calls for inches. Fear not. All you need is to cast a unit conversion spell.

Unit conversions let you pass between unit realms, preserving both the quantity and the dimension it belongs to.

To convert a unit, you multiply it by a cleverly chosen form of one: a conversion factor which is a ratio that equals the value of one. These enchanted ratios are built from equal quantities written in different units, like $1 \text{ inch} = 2.54 \text{ cm}\text{.}$ Use them wisely, and you can reshape any unit into the a different unit your quest requires.

With this skill in your spellbook, you’ll never be caught off guard when moving between units.

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