Why did (and why do) people use measurements in fractions of an inch?

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As the title says really, I can work with many different measurements (full inches, feet, yards, metres, mm etc ) but I’ve always struggle when it comes to imperial measurements of fractions of an inch. Why did people use this measurement because to me it seems a crazy way to measure something!

In: Engineering

9 Answers

Anonymous 0 Comments

A centimeter is just 1/100th of a meter. 38 centimeters is 38 hundredths of a meter.

In the Imperial system the inch is the smallest common unit of length, so anything smaller than that is a fraction of an inch.

Simple fractions like quarters or eighths of an inch are most common, but you’ll see people doing fine work in hundredths too.

Quarters and eights became so common because they’re just divisions of 2. You can eyeball them with decent accuracy.

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