# inch (International) to millimetre conversion

Conversion number between inch (International) [in] and millimetre [mm] is 25.4. This means, that inch (International) is bigger unit than millimetre.

### Contents [show][hide]

Switch to reverse conversion:
from millimetre to inch (International) conversion

### Enter the number in inch (International):

Decimal Fraction Exponential Expression
 [in]
eg.: 10.12345 or 1.123e5

Result in millimetre

?
 precision 0 1 2 3 4 5 6 7 8 9 [info] Decimal: Exponential:

### Calculation process of conversion value

• 1 inch (International) = (exactly) (0.0254) / (0.001) = 25.4 millimetre
• 1 millimetre = (exactly) (0.001) / (0.0254) = 0.039370078740157 inch (International)
• ? inch (International) × (0.0254  ("m"/"inch (International)")) / (0.001  ("m"/"millimetre")) = ? millimetre

### High precision conversion

If conversion between inch (International) to metre and metre to millimetre is exactly definied, high precision conversion from inch (International) to millimetre is enabled.

Decimal places: (0-800)

inch (International)
Result in millimetre:
?

### inch (International) to millimetre conversion chart

 Start value: [inch (International)] Step size [inch (International)] How many lines? (max 100)

visual:
inch (International)millimetre
00
10254
20508
30762
401016
501270
601524
701778
802032
902286
1002540
1102794
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## Multiple conversion

Enter numbers in inch (International) and click convert button.
One number per line.

Converted numbers in millimetre:
Click to select all

## Details about inch (International) and millimetre units:

Convert Inch (International) to other unit:

### inch (International)

Definition of inch (International) unit: ≡ 2.54 cm ≡  1⁄36 yd ≡  1⁄12 ft .

Convert Millimetre to other unit:

### millimetre

Definition of millimetre unit: =1x10-3 m.

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