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Both millimeters and inches serve different purposes and are used in different contexts. Conversion between the two can be done by knowing the conversion factor of 25.4 millimeters in one inch or dividing millimeters by 25.4 to obtain the equivalent in inches.
There are 25.4 millimeters in one inch, which means that one inch is approximately 25.4 times larger than one millimeter.
Millimeters
Millimeters are a smaller unit, commonly used for precise measurements. They are often used in fields such as engineering, manufacturing, and scientific research. For example, the diameter of small objects or the thickness of materials can be measured in millimeters.
Inches
Inches, on the other hand, are a larger unit, commonly used in everyday situations, particularly in countries that follow the imperial system. Inches are often used to measure length, width, or height of objects, such as the size of a television screen or the length of a piece of furniture.
How to convert mm to inches
1mm = (1/25.4)″ = 0.03937007874″
Distance d in inches (″) is equal to the distance d in millimeters (mm) divided by 25.4 i.e.,
d(″) = d(mm) / 25.4
Example- Convert 1200 mm to inches
Ans. d(″) = 1200mm / 25.4 = 47.244″
Example- Convert 40 mm to inches
Ans. To convert 40 mm to inches, you use the conversion factor where 1 inch equals 25.4 millimeters. Therefore, 40 millimeters is approximately 1.578 inches.
Also Check
Millimeters to inches conversion table
| Millimeters (mm) | Inches (“) (decimal) |
Inches (“) (fraction) |
| 0.01 mm | 0.0004 ″ | 0 ″ |
| 0.1 mm | 0.0039 ″ | 0 ″ |
| 1 mm | 0.0394 ″ | 3/64 ″ |
| 2 mm | 0.0787 ″ | 5/64 ″ |
| 3 mm | 0.1181 ″ | 1/8 ″ |
| 4 mm | 0.1575 ″ | 5/32 ″ |
| 5 mm | 0.1969 ″ | 13/64 ″ |
| 6 mm | 0.2362 ″ | 15/64 ″ |
| 7 mm | 0.2756 ″ | 9/32 ″ |
| 8 mm | 0.3150 ″ | 5/16 ″ |
| 9 mm | 0.3543 ″ | 23/64 ″ |
| 10 mm | 0.3937 ″ | 25/64 ″ |
| 20 mm | 0.7874 ″ | 25/32 ″ |
| 30 mm | 1.1811 ″ | 1 3/16 ″ |
| 40 mm | 1.5784 ″ | 1 37/64 ″ |
| 50 mm | 1.9685 ″ | 1 31/32 ″ |
| 60 mm | 2.3622 ″ | 2 23/64 ″ |
| 70 mm | 2.7559 ″ | 2 3/4 ″ |
| 80 mm | 3.1496 ″ | 3 5/32 ″ |
| 90 mm | 3.5433 ″ | 3 35/64 ″ |
| 100 mm | 3.9370 ″ | 3 15/16 ″ |
Frequently Asked Questions on mm to inches
How many inches is a mm?
There are approximately 0.03937 inches in 1 millimeter (mm).
What is 1 inch equal to in Mm?
1 inch is equal to 25.4 millimeters (mm).
एमएम में 1 इंच बराबर कितना होता है?
एक इंच में लगभग 25.4 मिमीमीटर (mm) होते हैं।
How many Mm is 1 ⁄ 4 inch?
1/4 inch is equal to approximately 6.35 millimeters (mm).
1 इंच 25 मिमी है?
नहीं, 1 इंच 25 मिमीमीटर नहीं है। सही मान 1 इंच = 25.4 मिमीमीटर (mm) है।
12 मिमी एक इंच है?
नहीं, 12 मिमीमीटर (mm) एक इंच नहीं है। सही मान 12 मिमीमीटर (mm) = 0.4724 इंच होते हैं।
Convert 1/4 inch to mm
To convert 1/4 inch to millimeters (mm), you multiply 1/4 by 25.4: 1/4 inch x 25.4 mm/inch = 6.35 mm. Therefore, 1/4 inch is equal to 6.35 millimeters.
