Convert from Inches to Millimeters
Alternative name: Convert in to mm
You can use this converter to convert the length in Inches (in) to the equivalent length in Millimeters (mm).
The formula used in this length converter is listed below. There is also a Inches (in) to Millimeters (mm) conversion table for your convenience.
1000 Inches is the same as:
25400 MillimetersIf you want to convert this length the other way around, try this converter: Millimeters to Inches converter
Inches can also be converted to other units:
The conversion formula for Inches to Millimeters
We know that 1 inch is the same as 25.4 millimeter. This allows us to set up the following formula:
length(mm) = length(in) × 25.4
25.4 is the conversion constant you need to remember to do this conversion.
Example usage of the Inches to Millimeters formula
If you know the Inches (in) to Millimeters (mm) formula, then you can calculate the length like this.
The example converts 1000 in to the same length in millimeters.
25400 mm = 1000 in × 25.4
Conversion table for Inches to Millimeters
This conversion table is based on the formula used above.
You can generate a conversion table for any number range by entering a start and end number range below.
| Inch | Millimeter |
|---|---|
| 1 in | 25.4 mm |
| 2 in | 50.8 mm |
| 3 in | 76.2 mm |
| 4 in | 101.6 mm |
| 5 in | 127 mm |
| 6 in | 152.4 mm |
| 7 in | 177.8 mm |
| 8 in | 203.2 mm |
| 9 in | 228.6 mm |
| 10 in | 254 mm |
| 11 in | 279.4 mm |
| 12 in | 304.8 mm |
| 13 in | 330.2 mm |
| 14 in | 355.6 mm |
| 15 in | 381 mm |
| 16 in | 406.4 mm |
| 17 in | 431.8 mm |
| 18 in | 457.2 mm |
| 19 in | 482.6 mm |
| 20 in | 508 mm |
| 21 in | 533.4 mm |
| 22 in | 558.8 mm |
| 23 in | 584.2 mm |
| 24 in | 609.6 mm |
| 25 in | 635 mm |
| 26 in | 660.4 mm |
| 27 in | 685.8 mm |
| 28 in | 711.2 mm |
| 29 in | 736.6 mm |
| 30 in | 762 mm |
| 31 in | 787.4 mm |
| 32 in | 812.8 mm |
| 33 in | 838.2 mm |
| 34 in | 863.6 mm |
| 35 in | 889 mm |
| 36 in | 914.4 mm |
| 37 in | 939.8 mm |
| 38 in | 965.2 mm |
| 39 in | 990.6 mm |
| 40 in | 1016 mm |
| 41 in | 1041 mm |
| 42 in | 1067 mm |
| 43 in | 1092 mm |
| 44 in | 1118 mm |
| 45 in | 1143 mm |
| 46 in | 1168 mm |
| 47 in | 1194 mm |
| 48 in | 1219 mm |
| 49 in | 1245 mm |
| 50 in | 1270 mm |
If you want, you can also see all other related units of measure in this category by clicking here. The table is updated, but the start and end range of the conversion remains the same.
If you need more advanced control over the table, see here: advanced conversion table