# Length Conversion

### As **not** used by NASA*

* In 1999 NASA lost a Mars orbiter because Lockheed Martin used feet and inches while NASA used metric

**
Example 1: Input 1.5 miles at the top of the first column and study the results carefully to see how it works**

Example 2: Press Reset and then input 254 millimetres at the bottom of the last column (use mouse to point)

Example 3: Press Reset. In the second column input 7 miles, 803 yards, 1 foot and 1 inch (almost exactly 12 Kilometers)

Example 4: Press Reset. In the second column and enter 1 mile and 5280 yards. You will see it is 4 miles!

Example 5: Press Reset. Enter 1.5 miles in the second column!