Inch Converter
Created by: tinycalcs.com/en
Number of supported units: 46
Last update: 2026
The Inch Converter supports 46 different length units. This makes it possible to convert between inches [in], metric, Anglo-American, nautical, astronomical, and other length units as desired. All length measurements are converted in real time and displayed with up to 20 decimal places, ensuring sufficient accuracy.
Conversion of inches
In order to convert inches [in] into another unit of length, a conversion value is required. This value can be determined using a conversion table. However, the table is relatively large, confusing, and difficult for inexperienced users to understand. The tool below provides a solution to this problem by allowing the rounded conversion values for inches [in] to be queried directly from the conversion table.
Determine conversion factor
Conversion between inches and millimeters
A quick and precise conversion between inches [in] and millimeters [mm] is straightforward and requires only multiplication or division by 25.4. The conversion from inches [in] to millimeters [mm] is done by multiplying the value in inches [in] by 25.4. To reverse the conversion, divide the value in millimeters [mm] by 25.4 to obtain inches [in].
- Millimeters [mm] = inches [in] * 25.4
- Inches [in] = millimeters [mm] ÷ 25.4
Conversion between inches and centimeters
Conversions between inches [in] and centimeters [cm] are straightforward and can be performed with simple math. The required conversion factor is 2.54. To convert a value from inches [in] to centimeters [cm], multiply the number of inches [in] by 2.54. For values in centimeters [cm], divide by 2.54 to get the equivalent in inches [in].
- Centimeters [cm] = inches [in] * 2.54
- Inches [in] = centimeters [cm] ÷ 2.54
Conversion between inches and decimeters
You can easily convert between decimeters [dm] and inches [in] using the formulas provided below. For accurate results, it is important to follow the correct order of mathematical operations.
- Inches [in] = decimeters [dm] ÷ 0.254
- Decimeters [dm] = inches [in] * 0.254
Conversion between inches and meters
The fastest and easiest way to convert between meters [m] and inches [in] is to use the converter above. Manual conversions are also possible and can be done using the formulas provided below.
- Inches [in] = meters [m] ÷ 254 * 104
- Meters [m] = inches [in] * 254 ÷ 104
Conversion between inches and kilometers
The two formulas below provide an easy way to convert between kilometers [km] and inches [in]. To ensure precise conversion results, it is important to follow the correct order of math operations.
- Inches [in] = kilometers [km] ÷ 254 * 107
- Kilometers [km] = inches [in] * 254 ÷ 107
Inch
Decimal places
Metric units
American / British
Further units
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