Inches to Millimeters Calculator
Inches to MM Reference Table
| Inches | Millimeters (mm) | Centimeters (cm) | Feet |
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About the Inches to Millimetres Converter
The Conversion Formula
1 inch = 25.4 mm exactly. To convert inches to millimeters, multiply by 25.4. This is the internationally standardised conversion.
Common Uses
- DIY and woodworking measurements
- Drill bit and bolt sizes
- Screen and display sizes (TV and monitor sizes are given in inches)
- Converting imperial ruler measurements to metric
Related Conversions
1 inch = 25.4 mm = 2.54 cm = 0.0254 m. Fractions of an inch (like 3/8") can also be converted — 3/8" = 9.525 mm.
Common Use Cases
- DIY and woodworking — converting imperial measurements to metric
- Choosing the right drill bit or bolt size
- Converting screen or TV sizes from inches to mm
- Craft and sewing projects mixing imperial and metric patterns
Latest Results
0.5 in = 12.7 mm
1 in = 25.4 mm
1.5 in = 38.1 mm
2 in = 50.8 mm
2.5 in = 63.5 mm
3 in = 76.2 mm
3.5 in = 88.9 mm
4 in = 101.6 mm
4.5 in = 114.3 mm
5 in = 127 mm
5.5 in = 139.7 mm
6 in = 152.4 mm
6.5 in = 165.1 mm
7 in = 177.8 mm
7.5 in = 190.5 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
22 in = 558.8 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
30 in = 762 mm
32 in = 812.8 mm
33 in = 838.2 mm
34 in = 863.6 mm
36 in = 914.4 mm
38 in = 965.2 mm
40 in = 1,016 mm
42 in = 1,066.8 mm
44 in = 1,117.6 mm
48 in = 1,219.2 mm
50 in = 1,270 mm
54 in = 1,371.6 mm
60 in = 1,524 mm
66 in = 1,676.4 mm
72 in = 1,828.8 mm
80 in = 2,032 mm
90 in = 2,286 mm
100 in = 2,540 mm
120 in = 3,048 mm
150 in = 3,810 mm
200 in = 5,080 mm