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There are 25.4 millimetres in one inch. Therefore, rounded to three significant figures, 20 millimetres is equal to 20/25.4 = 0.787 inches.

Direct Conversion Formula 20 mm*

1 in

25.4 mm

=

0.7874015748 in
To convert from mm to inches, you need to divide by 25.4.

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9y ago

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