| millimeter | 1 mm | 2 mm | 3 mm | 4 mm | 5 mm | 6 mm | 7 mm | 8 mm | 9 mm | 10 mm | 11 mm | 12 mm | 13 mm | 14 mm | 15 mm | 16 mm | 17 mm | 18 mm | 19 mm | 20 mm | 21 mm | 22 mm | 23 mm | 24 mm | 25 mm | 26 mm | 27 mm | 28 mm | 29 mm | 30 mm | 31 mm | 32 mm | 33 mm | 34 mm | 35 mm | 36 mm | 37 mm | 38 mm | 39 mm | 40 mm | 41 mm | 42 mm | 43 mm | 44 mm | 45 mm | 46 mm | 47 mm | 48 mm | 49 mm | 50 mm | 51 mm | 52 mm | 53 mm | 54 mm | 55 mm | 56 mm | 57 mm | 58 mm | 59 mm | 60 mm | 61 mm | 62 mm | 63 mm | 64 mm | 65 mm | 66 mm | 67 mm | 68 mm | 69 mm | 70 mm | 71 mm | 72 mm | 73 mm | 74 mm | 75 mm | 76 mm | 77 mm | 78 mm | 79 mm | 80 mm | 81 mm | 82 mm | 83 mm | 84 mm | 85 mm | 86 mm | 87 mm | 88 mm | 89 mm | 90 mm | 91 mm | 92 mm | 93 mm | 94 mm | 95 mm | 96 mm | 97 mm | 98 mm | 99 mm | 100 mm |
| inch | 0.0393701 in | 0.0787402 in | 0.1181102 in | 0.1574803 in | 0.1968504 in | 0.2362205 in | 0.2755906 in | 0.3149606 in | 0.3543307 in | 0.3937008 in | 0.4330709 in | 0.4724409 in | 0.5118110 in | 0.5511811 in | 0.5905512 in | 0.6299213 in | 0.6692913 in | 0.7086614 in | 0.7480315 in | 0.7874016 in | 0.8267717 in | 0.8661417 in | 0.9055118 in | 0.9448819 in | 0.9842520 in | 1.0236220 in | 1.0629921 in | 1.1023622 in | 1.1417323 in | 1.1811024 in | 1.2204724 in | 1.2598425 in | 1.2992126 in | 1.3385827 in | 1.3779528 in | 1.4173228 in | 1.4566929 in | 1.4960630 in | 1.5354331 in | 1.5748031 in | 1.6141732 in | 1.6535433 in | 1.6929134 in | 1.7322835 in | 1.7716535 in | 1.8110236 in | 1.8503937 in | 1.8897638 in | 1.9291339 in | 1.9685039 in | 2.0078740 in | 2.0472441 in | 2.0866142 in | 2.1259843 in | 2.1653543 in | 2.2047244 in | 2.2440945 in | 2.2834646 in | 2.3228346 in | 2.3622047 in | 2.4015748 in | 2.4409449 in | 2.4803150 in | 2.5196850 in | 2.5590551 in | 2.5984252 in | 2.6377953 in | 2.6771654 in | 2.7165354 in | 2.7559055 in | 2.7952756 in | 2.8346457 in | 2.8740157 in | 2.9133858 in | 2.9527559 in | 2.9921260 in | 3.0314961 in | 3.0708661 in | 3.1102362 in | 3.1496063 in | 3.1889764 in | 3.2283465 in | 3.2677165 in | 3.3070866 in | 3.3464567 in | 3.3858268 in | 3.4251969 in | 3.4645669 in | 3.5039370 in | 3.5433071 in | 3.5826772 in | 3.6220472 in | 3.6614173 in | 3.7007874 in | 3.7401575 in | 3.7795276 in | 3.8188976 in | 3.8582677 in | 3.8976378 in | 3.9370079 in |
The millimetre (International spelling as used by the International Bureau of Weights and Measures; SI unit symbol mm) or millimeter (American spelling) is a unit of length in the metric system, equal to one thousandth of a metre, which is the SI base unit of length. Therefore there are thousand millimetres in a metre. There are ten millimetres in a centimetre.
| 1 millimeters ≡ 0.039370078740157 inches | 4 millimeters ≡ 0.15748031496063 inches |
| 1.5 millimeters ≡ 0.059055118110236 inches | 4.5 millimeters ≡ 0.17716535433071 inches |
| 2 millimeters ≡ 0.078740157480315 inches | 5 millimeters ≡ 0.19685039370079 inches |
| 2.5 millimeters ≡ 0.098425196850394 inches | 5.5 millimeters ≡ 0.21653543307087 inches |
| 3 millimeters ≡ 0.11811023622047 inches | 6 millimeters ≡ 0.23622047244094 inches |
The inch (abbreviation: in or ″) is a unit of length in the (British) imperial and United States customary systems of measurement now formally equal to 1⁄36 yard but usually understood as 1⁄12 of a foot. Derived from the Roman uncia ("twelfth"), inch is also sometimes used to translate related units in other measurement systems, usually understood as deriving from the width of the human thumb.
| 1 inches ≡ 25.4 millimeters | 4 inches ≡ 101.6 millimeters |
| 1.5 inches ≡ 38.1 millimeters | 4.5 inches ≡ 114.3 millimeters |
| 2 inches ≡ 50.8 millimeters | 5 inches ≡ 127 millimeters |
| 2.5 inches ≡ 63.5 millimeters | 5.5 inches ≡ 139.7 millimeters |
| 3 inches ≡ 76.2 millimeters | 6 inches ≡ 152.4 millimeters |
| 1 millimeters ≡ 0.0393701 inches |
| 1 inches ≡ 25.4 millimeters |