# UnitMath Examples

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If you are looking at UnitMath for the first time start here.

The following examples show how UnitMath can be used in different applications. The best way to learn UnitMath is to download a copy and try the following for yourself.

### Rain on Football Field TOP

This example will help you understand the use of units and precision in UnitMath.

Find the amount of water on an U.S. football field ( 160 ft * 100 yards ), given that there is about an inch of rain on the field.

In UnitMath enter and evaluate:
100 yards * 160 ft * 1.0 inch as gallons ~ ( 28,426. to 31,418. ) gallons
100 yards * 160 ft * 1.0 inch * gram/cc as tons ~ ( 119. to 125. to 131. ) tons

### Notes

• volume = length ( 100 yards ) * width (160 ft) * height ( 1.0 inch )
• mass = Volume * density (gram/cc)
• UnitMath equations include units and precision, and are easy to enter . "100 yard * 160 ft * 1.0 inch as gallons"
• UnitMath results show the correct range in your units. "~ ( 28,426. to 31,418. ) gallons" The "~" indicates that the answer has a range or can't be displayed exactly.
• UnitMath is unit independent so the water's density could be any of the following ( g/cc, 8.3 lb / gal, kg / liter, 62.4 lb / cu ft, oz / fluid_oz, lb/pt, ... ).

For an international soccer field, find the amount of water.

(110 to 120) yards * (70 to 80) yards * 1.0 inch as gallons ~ ( 41,040 to 56,553. ) gallons
(110 to 120) yards * (70 to 80) yards * 1.0 inch * g/cc as tons ~ ( 171. to 236. ) tons

• A generic international soccor field is between (110 to 120) yards long and (70 to 80) yards wide. Naturally you could get more precise dimensions, and therefore results for a specific field.
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