Length units calculator & converter tool
Conversions Table
Equivalent of 20 Inch: |
507.99972568015 Millimeter |
50.799972568015 Centimeter |
0.50799972568015 Meter |
0.00050799972568015 Kilometer |
1.6667470999566 Foot |
0.0003156562975456 Mile |
0.55575169989408 Yard |
0.00027431985186728 Nautical Mile |
Inch / Mile Units Definition
Inch
The inch (symbol: ″ (double prime) or po in French-speaking Canada) is a unit of length dating back to the Middle Ages.Its dimensional value has varied over time, across regions and across countries.Since 1959, following an English compromise, the English inch — also called the “international technical inch” — has been exactly 2.54 cm, or one twelfth of a foot or one thirty-sixth (1⁄36) of a yard. For historical reasons, other definitions of the inch are still in force in certain areas.
Mile
Mile was a Roman route measurement, which was worth a thousand paces (1,481.5 m).International unit of measurement for distances in air or sea navigation corresponding to the distance between two points on Earth with the same longitude and whose latitudes differ by one minute. (The mile is conventionally worth 1,852 m, except in Commonwealth countries, where it is worth 1,853.18 m.) [It is also called a nautical mile or nautical mile.]In Canada, an old unit of measurement for distances, equivalent to the British mile (approximately 1,609 m).