To calculate the area of a rectangle in Excel, you need to multiply the length with height. That being said, use this formula: =<cell with length>*<cell with height>.

To calculate the area of a rectangle, you multiply the length by the width. 5cm × 8cm = 40cm² Remember, area is measured in square units, such as square centimetres (cm²) and square metres (m²).

Select the data set for which you wish to calculate area under a curve. Click the "Chart Elements" button in the upper right of the chart. This looks like a large plus sign.

Runoff Calculator Page 2: Curve Number. Now that you have determined the type of soils on your property, it is time to determine its Curve Number.. The Curve Number is an empirical value created by ...