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How many mm in 20 inches?

Updated: 8/10/2023
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Wiki User

12y ago

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ok well a inch is twelve centimeters right and ten centimeters is a millaleter so 1.8 mm in 20 inches i think i just did it in my head but that's what i think plus im better in metric.

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12y ago
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12y ago

1 inch is approximately 25.4 mm, so 29 and 1/2 inches will have

25.4 x (29 and 1/2) mm

= 25.4 x 59/2 mm

= 12.7 x 59 mm

= 749.3 mm

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