Inches to mm (Convert Inches to Millimeters)

Enter the length in inches below to convert to millimeters, or mm to inches, fractional inch to mm

Inches to Millimeters Formula

Inches (in) to millimeters (mm) conversion formula is: Millimeters = Inches * 25.4

How to Covert Inches to mm?

Inches and millimeters are the units of measurement, but these two measurements are used in different systems. Inches are used in the imperial system, while millimeters are used in the metric system. We need to understand the relationship between inches and millimeters before we do the conversion, one inch is internationally accepted as being equivalent to 25.4 millimeters. So as we know, the conversion factor for inches to millimeters is 25.4. To convert any number of inches to millimeters, we simply multiply the conversion factor of 25.4 by the number of inches.

For example, here is 2 inches you want to convert these 2 inches to millimeters to make the measurement easier to understand. to get the answer multiply 2 inches with 25.4, so 2 inches is equal to 50.8 millimeters.

Convert 1 inches to Common Lengths

Units1 in =
Foot0.0833333 ft
Yard0.0277778 yd
Mile0.0000157828 mi
Millimeter25.4 mm
Centimeter2.54 cm
Meter0.0254 m
Kilometer0.0000254 km

What is Inch?

An inch (symbol: in or ″) is a unit of length in the British imperial and the United States customary systems of measurement.

What is Millimeter?

A millimeter (mm) is a small unit of Displacement (length/distance) in the metric system. equals to one thousandth of a meter. It's used throughout the world in the sciences and is the standard of measurement for science engineering, mathematics and technology.

Inches to Millimeters Conversion Table

Inches (in)Millimeters (mm)
1 in25.399999 mm
1.5 in38.099999 mm
2 in50.799999 mm
2.5 in63.499999 mm
3 in76.199999 mm
4 in101.599999 mm
5 in126.999999 mm
6 in152.399999 mm
7 in177.799999 mm
8 in203.199999 mm
9 in228.599999 mm
10 in253.999999 mm
11 in279.399999 mm
12 in304.799999 mm
13 in330.199999 mm
14 in355.599999 mm
15 in380.999999 mm
16 in406.399999 mm
17 in431.799999 mm
18 in457.199999 mm
19 in482.599999 mm
20 in507.999999 mm
25 in634.999999 mm
30 in761.999999 mm
35 in888.999999 mm
Inches (in)Millimeters (mm)
40 in1015.999999 mm
45 in1142.999999 mm
50 in1269.999999 mm
55 in1396.999999 mm
60 in1523.999999 mm
65 in1650.999999 mm
70 in1777.999999 mm
75 in1904.999999 mm
80 in2031.999999 mm
85 in2158.999999 mm
90 in2285.999999 mm
95 in2412.999999 mm
100 in2539.999999 mm
105 in2666.999999 mm
110 in2793.999999 mm
115 in2920.999999 mm
120 in3047.999999 mm
125 in3174.999999 mm
130 in3301.999999 mm
135 in3428.999999 mm
140 in3555.999999 mm
145 in3682.999999 mm
150 in3809.999999 mm
155 in3936.999999 mm
160 in4063.999999 mm
Inches (in)Millimeters (mm)
165 in4190.999999 mm
170 in4317.999999 mm
175 in4444.999999 mm
180 in4571.999999 mm
185 in4698.999999 mm
190 in4825.999999 mm
195 in4952.999999 mm
200 in5079.999999 mm
205 in5206.999999 mm
210 in5333.999999 mm
215 in5460.999999 mm
220 in5587.999999 mm
230 in5841.999999 mm
240 in6095.999999 mm
250 in6349.999999 mm
260 in6603.999999 mm
270 in6857.999999 mm
280 in7111.999999 mm
290 in7365.999999 mm
300 in7619.999999 mm
325 in8254.999999 mm
350 in8889.999999 mm
375 in9524.999999 mm
400 in10159.999999 mm
425 in10794.999999 mm
Inches (in)Millimeters (mm)
450 in11429.999999 mm
475 in12064.999999 mm
500 in12699.999999 mm
550 in13969.999999 mm
600 in15239.999999 mm
650 in16509.999999 mm
700 in17779.999999 mm
750 in19049.999999 mm
800 in20319.999999 mm
900 in22859.999999 mm
1000 in25399.999999 mm
1100 in27939.999999 mm
1200 in30479.999999 mm
1300 in33019.999999 mm
1400 in35559.999999 mm
1500 in38099.999999 mm
1600 in40639.999999 mm
1700 in43179.999999 mm
1800 in45719.999999 mm
1900 in48259.999999 mm
2000 in50799.999999 mm
2500 in63499.999999 mm
3000 in76199.999999 mm
4000 in101599.999999 mm
5000 in126999.999999 mm

FAQ Related to Inches to Millimeters

How many mm in an inch?

One inch is equal to 25.4 millimeters.

How many mm is 2.5 inches?

The answer to 2.5 inches to mm is 63.5 millimeters. There are 25.4 millimeters in one inch. So we multiply 2.5 inches by 25.4.

How many mm are in 5 inches?

According to the above calculation method, multiplying 5 by 25.4 gives the answer of 127 millimeters to convert 5 inches to mm.