In case you’ve never gotten along with millimeters, or in case you need to do some conversions and never got along with algebra, this page contains easy conversions back and forth between inches and millimeters.
Conversions without a calculatorIf you have the inches, and need to know the millimeters:In order of increasing size…
If you have the millimeters, and need to know the inches:
|
Calculator Conversions |
If you have inches, and want to know how many millimeters:
If you have millimeters (or centimeters), and you want inches:
If you are trying to figure out how many 6mm beads you need for a 20″ necklace, you can use this decimal value directly. From Example 2 above, you know that a 6mm bead = .2362 inches. If, however, you want fractions of an inch (1/16, 1/4, 1/2), rather than a decimal, try this:
For jewelry purposes, I don’t recommend rounding to larger fractions, such as 1/4, or even 1/8 inch. If you are not making jewelry, or your needs are not very exact, then you can round to a larger fraction such as 1/4. To round to the nearest 1/4 of an inch, simply replace all the 16’s in Step 2’s examples with 4’s. |
Miscellaneous Numbers for Conversions |
To Convert…
|