How many inches are in 1 mm?
1mm = 0.03937008 inches. To convert mm to inches you should divide your figure by 25.4.
Use our calculator tool to convert quickly between millimeters/millimetres and inches (mm and in), or vice-versa, with results given as both decimal and fraction.
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Millimeters to inches conversion in fraction form
Our converter allows you to show results as fractions in 1/16, 1/32 and 1/64 inch for millimeter to inch conversions. It is important to note that when you choose this option, the converter will round (up or down) and give you a remainder figure (the difference between the fraction and the full result). For this reason, the fraction result will be slightly smaller or slightly larger.
How many mm in an inch?
1 inch = 25.4mm. To convert inches to millimeters multiply your figure by 25.4. The chart below shows some example conversions, rounded to a maximum of 4 decimal places. Should you wish to convert between centimeters and inches, give the cm to inches converter a try.
How many mm in an inch and a half?
1 1/2 inches = 38.1 mm. To make this calculation, we simply multiply: 25.4 × 1.5.
Millimeters and inches conversion charts
The chart below shows the conversion between millimeters and inches, rounded to a maximum of 4 decimal places (first table) and 3 decimal places (second table).
MM TO INCHES
INCHES TO MM
| Millimeters | Inches (decimal) | Inches (fraction approx) |
|---|
Note: fraction figures for inches are approximate.
How many inches are in 1 mm?
1mm = 0.03937008 inches.
My conversion tool can help you convert between millimeters and inches. Should you wish to convert between centimeters and inches, give the cm and inches converter a try. For any other units of height, you may wish to use the height calculator here.