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Length
Inches to Millimeters
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Formula
Multiply the length in inches by 25.4
5 in in other units
12.7
cm
127.0
mm
0.127
m
0.417
ft
Common conversions
| in |
mm |
|
0.5 in
|
12.7 mm
|
|
1 in
|
25.4 mm
|
|
2 in
|
50.8 mm
|
|
3 in
|
76.2 mm
|
|
5 in
|
127.0 mm
|
|
6 in
|
152.4 mm
|
|
10 in
|
254.0 mm
|
|
12 in
|
304.8 mm
|
|
24 in
|
609.6 mm
|
|
36 in
|
914.4 mm
|
Also: Millimeters to Inches
FAQ
How many millimeters in an inch?
1 inch equals exactly 25.4 millimeters.