Yards and inches are both units of length, but they measure different distances. Yards are like the big kahunas, perfect for measuring larger things like your garden or house length. Inches, on the other hand, are little helpers, ideal for tackling smaller projects like book-length, table-length, and smaller objects.

Yards and inches are both units used to measure length or distance but differ significantly in scale:

Yard: Yard is a larger unit of the imperial system mostly commonly used in the United States and the United Kingdom. It can be used where bigger distances or dimensions are performed like fields of sports, construction work, or fabric length.
Inch: An inch is measured in a smaller unit in comparison to the yard we have talked about. Inches are employed commonly as soon as the level of detail that has to be measured can considerably influence the result, in other words when significant differences in the shape and dimensions matter, such as in products, furniture, graphic design, or circuit boards.
The primary difference between these units is their size: Here we can quickly note that 1 yard is equal to 36 inches, and, therefore, using inches as the unit of measurement is pertinent to make absolutely fine measurements.