Field Area
Each area calculator determines the area of rectangular, triangular, circular and trapezoidal fields. Learn more about the units used on this page.
Rectangular Field Area
![](../../../Images/Rectangular-Field.gif)
Triangular Field Area
![](../../../Images/Triangular-Field.gif)
Circular Field Area
![](../../../Images/Circular-Field.gif)
Trapezoidal Field Area
![](../../../Images/Trapezoidal-Field.gif)
The Equations
These Calculators use the following formulas to determine the field area.
Rectangular Field Area
Where:
= Area of the field (sq. ft)
= Length of the field (ft)
= Width of the field (ft)
Triangular Field Area
Where:
= Area of the field (sq. ft)
= Length of the Base of the field (ft)
= Distance from the base to the top of the field at a 90° from the base (ft)
Circular Field Area
Where:
= Area of the field (sq. ft)
= 3.14159
= Radius of the field (ft)
= Portion of the circle (as degrees, %, or a decimal)
Trapezoidal Field Area
Where:
= Area of the field (sq. ft)
= Length of one side of the field (ft)
= Length of the side Parallel to
(ft)
= Width of the field, or distance between
and
(ft)