| mil | 1 mil | 2 mil | 3 mil | 4 mil | 5 mil | 6 mil | 7 mil | 8 mil | 9 mil | 10 mil | 11 mil | 12 mil | 13 mil | 14 mil | 15 mil | 16 mil | 17 mil | 18 mil | 19 mil | 20 mil | 21 mil | 22 mil | 23 mil | 24 mil | 25 mil | 26 mil | 27 mil | 28 mil | 29 mil | 30 mil | 31 mil | 32 mil | 33 mil | 34 mil | 35 mil | 36 mil | 37 mil | 38 mil | 39 mil | 40 mil | 41 mil | 42 mil | 43 mil | 44 mil | 45 mil | 46 mil | 47 mil | 48 mil | 49 mil | 50 mil | 51 mil | 52 mil | 53 mil | 54 mil | 55 mil | 56 mil | 57 mil | 58 mil | 59 mil | 60 mil | 61 mil | 62 mil | 63 mil | 64 mil | 65 mil | 66 mil | 67 mil | 68 mil | 69 mil | 70 mil | 71 mil | 72 mil | 73 mil | 74 mil | 75 mil | 76 mil | 77 mil | 78 mil | 79 mil | 80 mil | 81 mil | 82 mil | 83 mil | 84 mil | 85 mil | 86 mil | 87 mil | 88 mil | 89 mil | 90 mil | 91 mil | 92 mil | 93 mil | 94 mil | 95 mil | 96 mil | 97 mil | 98 mil | 99 mil | 100 mil |
| inch | 0.001 in | 0.002 in | 0.003 in | 0.004 in | 0.005 in | 0.006 in | 0.007 in | 0.008 in | 0.009 in | 0.01 in | 0.011 in | 0.012 in | 0.013 in | 0.014 in | 0.015 in | 0.016 in | 0.017 in | 0.018 in | 0.019 in | 0.02 in | 0.021 in | 0.022 in | 0.023 in | 0.024 in | 0.025 in | 0.026 in | 0.027 in | 0.028 in | 0.029 in | 0.03 in | 0.031 in | 0.032 in | 0.033 in | 0.034 in | 0.035 in | 0.036 in | 0.037 in | 0.038 in | 0.039 in | 0.04 in | 0.041 in | 0.042 in | 0.043 in | 0.044 in | 0.045 in | 0.046 in | 0.047 in | 0.048 in | 0.049 in | 0.05 in | 0.051 in | 0.052 in | 0.053 in | 0.054 in | 0.055 in | 0.056 in | 0.057 in | 0.058 in | 0.059 in | 0.06 in | 0.061 in | 0.062 in | 0.063 in | 0.064 in | 0.065 in | 0.066 in | 0.067 in | 0.068 in | 0.069 in | 0.07 in | 0.071 in | 0.072 in | 0.073 in | 0.074 in | 0.075 in | 0.076 in | 0.077 in | 0.078 in | 0.079 in | 0.08 in | 0.081 in | 0.082 in | 0.083 in | 0.084 in | 0.085 in | 0.086 in | 0.087 in | 0.088 in | 0.089 in | 0.09 in | 0.091 in | 0.092 in | 0.093 in | 0.094 in | 0.095 in | 0.096 in | 0.097 in | 0.098 in | 0.099 in | 0.1 in |
A thousandth of an inch is a derived unit of length in an inch-based system of units. Equal to 0.001 inches, it is normally referred to as a thou /ˈθaʊ/, a thousandth, or (particularly in the United States) a mil.
| 1 mils ≡ 0.001 inches | 4 mils ≡ 0.004 inches |
| 1.5 mils ≡ 0.0015 inches | 4.5 mils ≡ 0.0045 inches |
| 2 mils ≡ 0.002 inches | 5 mils ≡ 0.005 inches |
| 2.5 mils ≡ 0.0025 inches | 5.5 mils ≡ 0.0055 inches |
| 3 mils ≡ 0.003 inches | 6 mils ≡ 0.006 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 ≡ 1000 mils | 4 inches ≡ 4000 mils |
| 1.5 inches ≡ 1500 mils | 4.5 inches ≡ 4500 mils |
| 2 inches ≡ 2000 mils | 5 inches ≡ 5000 mils |
| 2.5 inches ≡ 2500 mils | 5.5 inches ≡ 5500 mils |
| 3 inches ≡ 3000 mils | 6 inches ≡ 6000 mils |
| 1 mils ≡ 0.001 inches |
| 1 inches ≡ 1 000 mils |