Inch to Kilometer Conversion Calculator: Free Online Tool
Convert inches to kilometers with our free online length converter.
Inch to Kilometer Calculator
How to Use the Calculator:
- Enter the value you want to convert in the 'From' field (Inch).
- The converted value in Kilometer will appear automatically in the 'To' field.
- Use the dropdown menus to select different units within the Length category.
- Click the swap button (⇌) to reverse the conversion direction.
How to Convert Inch to Kilometer
Converting Inch to Kilometer involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Inch = 2.5400e-5 kilometersExample Calculation:
Convert 10 inches: 10 × 2.5400e-5 = 0.000254 kilometers
Disclaimer: For Reference Only
These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.
Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.
What is a Inch and a Kilometer?
The inch is a unit of length in the British imperial and United States customary systems of measurement. It is defined as exactly 1/12 of a foot or 2.54 centimeters.
The kilometer is a unit of length in the metric system equal to one thousand meters (1,000 m). It is commonly used to measure geographic distances.
Note: The Inch is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Kilometer belongs to the metric (SI) system.
History of the Inch and Kilometer
The inch has ancient origins, historically related to the width of a thumb or the length of three barleycorns laid end-to-end. Its definition was standardized internationally in 1959 based on the metric system (1 inch = 2.54 cm exactly).
Derived directly from the meter, the kilometer was established as part of the metric system in the late 18th century to provide a larger, convenient unit for measuring longer distances, such as those between cities or the lengths of roads.
Common Uses for inches and kilometers
Explore the typical applications for both Inch (imperial/US) and Kilometer (metric) to understand their common contexts.
Common Uses for inches
- Everyday US Measurements: Everyday measurements in the US (e.g., height, paper size, screen sizes).
- US Construction: Construction and carpentry in the US.
- Apparel Sizing: Clothing sizes (e.g., waist size, inseam).
- US Meteorology: Measuring rainfall in the US.
- Engineering Components: Component sizes in some engineering fields.
Common Uses for kilometers
- Geography & Travel: Measuring distances between geographical locations (cities, countries).
- Transportation: Road signs indicating distances and speed limits (km/h) in metric countries.
- Mapping: Measuring the length of roads, rivers, or coastlines.
- Athletics: Athletic events like long-distance running (e.g., 5k, 10k, marathon).
- Logistics: Calculating travel times and fuel efficiency.
Frequently Asked Questions
Questions About Inch (in)
How many inches are in a foot?
There are exactly 12 inches (in) in 1 foot (ft).
How many centimeters are in an inch?
There are exactly 2.54 centimeters (cm) in 1 inch (in).
Where is the inch primarily used?
The inch is the standard unit for many everyday length measurements in the United States. It is also used to some extent in Canada and the UK, though metric is more common officially.
About Kilometer (km)
How many meters are in a kilometer?
There are exactly 1,000 meters (m) in 1 kilometer (km).
What does 'kilo' mean in kilometer?
The prefix 'kilo' denotes one thousand (1,000).
Is a kilometer longer or shorter than a mile?
A kilometer is shorter than a mile. One mile is approximately 1.609 kilometers.
Conversion Table: Inch to Kilometer
| Inch (in) | Kilometer (km) |
|---|---|
| 1 | 0 |
| 5 | 0 |
| 10 | 0 |
| 25 | 0.001 |
| 50 | 0.001 |
| 100 | 0.003 |
| 500 | 0.013 |
| 1,000 | 0.025 |
All Length Conversions
Other Units from Length
- Meter (m)
- Hectometer (hm)
- Decimeter (dm)
- Centimeter (cm)
- Millimeter (mm)
- Foot (ft)
- Yard (yd)
- Mile (mi)
- Nautical Mile (NM)
- Micrometer (μm)
- Nanometer (nm)
- Light Year (ly)
- Astronomical Unit (AU)
- Parsec (pc)
- Angstrom (Å)
- Point (Typography) (pt)
- Mil/Thou (mil)
- Fathom (fath)
- Furlong (fur)
- Link (Gunter's) (li)
- Pace (pace)
- Span (span)
- Digit (digit)
- Cable Length (cb)
- Ell (ell)
- Finger (finger)
- Roman Mile (m.p.)
- Stadion (stadion)
- Chi (Chinese) (chi)
- Shaku (Japanese) (shaku)
- Li (Chinese) (li)
- Toise (toise)
- Bolt (bolt)
- Rope (rope)
- Smoot (smoot)
- Sajene (sajene)
- Ken (ken)
- Wa (wa)
- Vara (vara)
- Aln (aln)
- Cubit (Royal/Egyptian) (cubit)
- Versta (versta)
- Arpent (arpent)
- Ri (Japanese) (ri)
- Klafter (klafter)
- Yojana (yojana)
- Skein (skein)