This length unit converter dynamically calculates a value you enter in **inches (in)** and converts it to its equivalent value in **centimeters (cm)**.

## Convert inches to other units of length:

- inches to nanometers
- inches to micrometers
- inches to millimeters
**inches to centimeters (inches to cm)**- inches to decimeters
**inches to meters**- inches to kilometers
**inches to feet**(and to**feet & inches**)- inches to yards
- inches to miles
- inches to nautical miles

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## How many inches (in) are in 1 centimeter (cm)? What is the formula for how to convert inches to centimeters (in to cm)?

**1 inch (in) = 2.54 centimeters (cm)**

So we can say that there is 2.54 centimeters in 1 inch.

This means that the multiplication conversion factor to convert a quantity expressed in an inch unit of measurement to an equivalent quantity expressed in a centimeter unit of measurement is 2.54.

Inversely (or reciprocally),

**1 centimeter (cm) = 0.39370078740157 inch (in)**

So we can say that there is 0.39370078740157 inch in 1 centimeter.

This means that the division conversion factor to convert a quantity expressed in an inch unit of measurement to an equivalent quantity expressed in a centimeter unit of measurement is 0.39370078740157.

Knowing this inverse mathematical relationship between the two conversion factors and their reciprocal operations, we can derive two formulas to calculate and convert a quantity of length expressed in inches to an equivalent quantity of length expressed in centimeters (in to cm). Both formulas will yield the same result. The formulas are:

cm = in × 2.54→ This is the formula based on the multiplication conversion factor.

and

cm = in ÷ 0.39370078740157→ This is the formula based on the division conversion factor.

#### A note on the inches to centimeters formula based on the division conversion factor:

For everyday manual calculations where a high degree of precision is not required, it is acceptable to use the approximation:

**in ≈ cm ÷ 0.4**

Using a division factor of 0.4 provides a rough estimation that is suitable for quick calculations for converting inches to centimeters.

On the other hand, if a precise conversion is necessary, such as in scientific or engineering applications, it is recommended to use the more accurate multiplication factor of 0.39370078740157 to minimize rounding errors and ensure greater accuracy in the conversion from inches to centimeters.

For example, if you have a length of 75 inches that you want to convert to centimeters, you would use either of the two formulas as follows:

cm = 75 in × 2.54 = 190.5 cm

cm = 75 in ÷ 0.39370078740157 = 190.5 cm

So, the result is the same using either formula, which is 190.5 centimeters.

## Inches to centimeters (in to cm) conversion chart

To save you time and effort spent on having to perform manual calculations or look up conversion formulas every time a conversion from inches to centimeters is needed, here is a inches-to-centimeters conversion chart for your quick and easy reference. This conversion chart (or conversion table) shows common measurement values of length in inches and their equivalent measurement values in centimeters. These equivalent measurement values may be rounded off to 1 or 2 decimal places when it is mathematically expedient for everyday applications.

inches (in) | centimeters (cm) |
---|---|

1 in | 2.54 cm |

2 in | 5.08 cm |

3 in | 7.62 cm |

4 in | 10.16 cm |

5 in | 12.70 cm |

6 in | 15.24 cm |

7 in | 17.78 cm |

8 in | 20.32 cm |

9 in | 22.86 cm |

10 in | 25.40 cm |

11 in | 27.94 cm |

12 in | 30.48 cm |

13 in | 33.02 cm |

14 in | 35.56 cm |

15 in | 38.10 cm |

16 in | 40.64 cm |

17 in | 43.18 cm |

18 in | 45.72 cm |

19 in | 48.26 cm |

20 in | 50.80 cm |

21 in | 53.34 cm |

22 in | 55.88 cm |

23 in | 58.42 cm |

24 in | 60.96 cm |

25 in | 63.50 cm |

26 in | 66.04 cm |

27 in | 68.58 cm |

28 in | 71.12 cm |

29 in | 73.66 cm |

30 in | 76.20 cm |

31 in | 78.74 cm |

32 in | 81.28 cm |

33 in | 83.82 cm |

34 in | 86.36 cm |

35 in | 88.90 cm |

36 in | 91.44 cm |

37 in | 93.98 cm |

38 in | 96.52 cm |

39 in | 99.06 cm |

40 in | 101.60 cm |

41 in | 104.14 cm |

42 in | 106.68 cm |

43 in | 109.22 cm |

44 in | 111.76 cm |

45 in | 114.30 cm |

46 in | 116.84 cm |

47 in | 119.38 cm |

48 in | 121.92 cm |

49 in | 124.46 cm |

50 in | 127.00 cm |

51 in | 129.54 cm |

52 in | 132.08 cm |

53 in | 134.62 cm |

54 in | 137.16 cm |

55 in | 139.70 cm |

56 in | 142.24 cm |

57 in | 144.78 cm |

58 in | 147.32 cm |

59 in | 149.86 cm |

60 in | 152.40 cm |

61 in | 154.94 cm |

62 in | 157.48 cm |

63 in | 160.02 cm |

64 in | 162.56 cm |

65 in | 165.10 cm |

66 in | 167.64 cm |

67 in | 170.18 cm |

68 in | 172.72 cm |

69 in | 175.26 cm |

70 in | 177.80 cm |

71 in | 180.34 cm |

72 in | 182.88 cm |

73 in | 185.42 cm |

74 in | 187.96 cm |

75 in | 190.50 cm |

76 in | 193.04 cm |

77 in | 195.58 cm |

78 in | 198.12 cm |

79 in | 200.66 cm |

80 in | 203.20 cm |

81 in | 205.74 cm |

82 in | 208.28 cm |

83 in | 210.82 cm |

84 in | 213.36 cm |

85 in | 215.90 cm |

86 in | 218.44 cm |

87 in | 220.98 cm |

88 in | 223.52 cm |

89 in | 226.06 cm |

90 in | 228.60 cm |

91 in | 231.14 cm |

92 in | 233.68 cm |

93 in | 236.22 cm |

94 in | 238.76 cm |

95 in | 241.30 cm |

96 in | 243.84 cm |

97 in | 246.38 cm |

98 in | 248.92 cm |

99 in | 251.46 cm |

100 in | 254.00 cm |

inches (in) | centimeters (cm) |
---|---|

101 in | 256.54 cm |

102 ft | 259.08 cm |

103 ft | 261.62 cm |

104 ft | 264.16 cm |

105 ft | 266.70 cm |

106 ft | 269.24 cm |

107 ft | 271.78 cm |

108 ft | 274.32 cm |

109 ft | 276.86 cm |

110 ft | 279.40 cm |

111 ft | 281.94 cm |

112 ft | 284.48 cm |

113 ft | 287.02 cm |

114 ft | 289.56 cm |

115 ft | 292.10 cm |

116 ft | 294.64 cm |

117 ft | 297.18 cm |

118 ft | 299.72 cm |

119 ft | 302.26 cm |

120 ft | 304.80 cm |

121 ft | 307.34 cm |

122 ft | 309.88 cm |

123 ft | 312.42 cm |

124 ft | 314.96 cm |

125 ft | 317.50 cm |

126 ft | 320.04 cm |

127 ft | 322.58 cm |

128 ft | 325.12 cm |

129 ft | 327.66 cm |

130 ft | 330.20 cm |

131 ft | 332.74 cm |

132 ft | 335.28 cm |

133 ft | 337.82 cm |

134 ft | 340.36 cm |

135 ft | 342.90 cm |

136 ft | 345.44 cm |

137 ft | 347.98 cm |

138 ft | 350.52 cm |

139 ft | 353.06 cm |

140 ft | 355.60 cm |

141 ft | 358.14 cm |

142 ft | 360.68 cm |

143 ft | 363.22 cm |

144 ft | 365.76 cm |

145 ft | 368.30 cm |

146 ft | 370.84 cm |

147 ft | 373.38 cm |

148 ft | 375.92 cm |

149 ft | 378.46 cm |

150 ft | 381.00 cm |

151 ft | 383.54 cm |

152 ft | 386.08 cm |

153 ft | 388.62 cm |

154 ft | 391.16 cm |

155 ft | 393.70 cm |

156 ft | 396.24 cm |

157 ft | 398.78 cm |

158 ft | 401.32 cm |

159 ft | 403.86 cm |

160 ft | 406.40 cm |

161 ft | 408.94 cm |

162 ft | 411.48 cm |

163 ft | 414.02 cm |

164 ft | 416.56 cm |

165 ft | 419.10 cm |

166 ft | 421.64 cm |

167 ft | 424.18 cm |

168 ft | 426.72 cm |

169 ft | 429.26 cm |

170 ft | 431.80 cm |

171 ft | 434.34 cm |

172 ft | 436.88 cm |

173 ft | 439.42 cm |

174 ft | 441.96 cm |

175 ft | 444.50 cm |

176 ft | 447.04 cm |

177 ft | 449.58 cm |

178 ft | 452.12 cm |

179 ft | 454.66 cm |

180 ft | 457.20 cm |

181 ft | 459.74 cm |

182 ft | 462.28 cm |

183 ft | 464.82 cm |

184 ft | 467.36 cm |

185 ft | 469.90 cm |

186 ft | 472.44 cm |

187 ft | 474.98 cm |

188 ft | 477.52 cm |

189 ft | 480.06 cm |

190 ft | 482.60 cm |

191 ft | 485.14 cm |

192 ft | 487.68 cm |

193 ft | 490.22 cm |

194 ft | 492.76 cm |

195 ft | 495.30 cm |

196 ft | 497.84 cm |

197 ft | 500.38 cm |

198 ft | 502.92 cm |

199 ft | 505.46 cm |

200 ft | 508.00 cm |

## Conversion of 1 inch (in) to other units of length

Here is a reference list providing a conversion of 1 inch (in) to its equivalent values in various units of length, both metric and imperial:

- 1 inch (in) = 25,400,000 nanometers (nm)
- 1 inch (in) = 25,400 micrometers (µm)
- 1 inch (in) = 25.4 millimeters (mm)
- 1 inch (in) = 2.54 centimeters (cm)
- 1 inch (in) = 0.254 decimeter (dm)
- 1 inch (in) = 0.0254 meter (m)
- 1 inch (in) = 0.0000254 kilometer (km)
- 1 inch (in) = 0.083333333333333 feet (ft)
- 1 inch (in) = 0.027777777777778 yard (yd)
- 1 inch (in) = 0.000015782828282828 mile (mi)
- 1 inch (in) = 0.000013714902807775 nautical mile (nmi)

## What is an inch (in)?

Definition of inch: An inch is an imperial and US customary unit of length equal to 1/12 of a foot or 2.54 centimeters. It is often used in the United States and the United Kingdom, that follow these measurement systems for small measurements such as in construction and carpentry.

The abbreviation for inch is in. The single Unicode character ㏌ (U+33CC) represents the 2-character Latin abbreviation for inch. The Windows Alt code for this character ㏌ is Alt + 13260.

The informal symbol for inch is represented by a double prime (″) or double quote (“). For example, 12 inches can be written as 12″.

## What is a centimeter (cm)?

Definition of centimeter: A centimeter is a unit of length in the International System of Units (SI), commonly known as the metric system. It is equal to one hundredth of a meter (10^-2 m). It is often used for everyday measurements involving shorter distances than meters, such as human height.

The abbreviation for centimeter is cm. The single Unicode character ㎝ (U+339D) represents the 2-character Latin abbreviation for centimeter. The Windows Alt code for this character ㎝ is Alt + 13213.