Conversion Factors
For readers who wish to convert measurements from the metric system of units to the inch-pound system, the conversion factors are listed below.
| Multiply |
By |
To obtain |
|
|
|
|
Length |
|
millimeter |
0.039 |
inch |
centimeter |
0.394 |
inch |
meter |
3.281 |
foot |
kilometer |
0.621 |
mile |
|
|
|
|
Area |
|
square kilometer |
0.386 |
square mile |
|
|
|
|
Volume |
|
liter |
0.264 |
gallon |
cubic meter |
1.308 |
cubic yard |
A simple rule of thumb for approximate conversions: 1 inch equals about 25 millimeters, or about 2.5 centimeters; 1 yard equals about 1 meter; 1 quart equals about 1 liter.
Table of Contents
| Maintained by J.M. Watson | https://pubs.usgs.gov/circ/c1075/conversion.html | Last updated 9.11.97 |
