Conversion of Units in Physics

Before we get into the Conversion of Units in Physics, we first need to define the scope this page covers. Already, we know this is the Formula Handbook. Hence, by framework, we only should focus on formulas and constants under the topic. But what formulas qualify for units conversions? Let's take a crash course on Physical Quantities.

A physical quantity is a property of a material or system that can be quantified by measurement or calculation. There are various types depending on the criteria used for classification.

If we are considering how the quantity was derived, we get Base/Fundamental quantities and Derived quantities.

If we rather consider whether the direction in which the quantity is measured matters or not, then we can separate them into Scalar quantities, Vector quantities and Tensor quantities.

Physical quantities has two components.

1. Numerical value: This is the number that tells how much of the quantity is present or measured.
2. Unit of measurement: A standard used for expressing the quantity.

Coming back to the scope, a particular physical quantity can be expressed in more than one unit. To avoid confusion, there exist ways to convert from one unit of the quantity to another unit of the same quantity just so comparison can be made. This is the area the page wants to explore: the various units for physical quantities in Physics and how to convert between units.