How do you measure the diameter of a coin?

Question

i.e. How can you make sure that what you're measuring is the diameter and not a cord? I was thinking that if i use a micrometer then i can find the parallel sides of the coin hence i would be measuring the diameter, but are there more 'solid' methods?

Thanks in advance!

John Alden · Accepted Answer

Calipers, and digital or dial versions are much handier the vernier types. A micrometer would also work fine.

http://vernier-caliper.com/

lunchtime_browser · Answer

The traditional way would be using vernier calipers.

How do you measure the diameter of a coin?

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