Add/Subtract Miles, Kilometers, Furlongs, Yards, Feet, Inches
12 inches === 1 foot
3 feet === 1 yard
220 yards === 1 furlong
5 furlongs === 1 kilometer
1.6 kilometers === 1 mile
The decimal measuring system uses 100 to advance from centimeters to Meters and 1,000 to advance to Kilometers.
The process of adding and subtracting lengths uses a multibase system of 12, 3, 220, 5 and 1.6 to move from inches through miles.
To do a calculation follow the following steps :
 Select Add or Subtract to add or subtract components.
 Input the number of components to add or subtract.
 Decide the form in which you want your results.
 Then press 'Add/Subtract Component'.
Multiply/Divide Time


CLICK HERE if you have any ideas of calculators you would like to see added, or improvements to existing ones made. Please report errors observed.

