Irrigation in the Pacific Northwest

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

 

Length:
Width:
Rectangular Area:

 

Triangular Field Area

 

Base:
Height:
Triangular Area:

 

Circular Field Area

 

Radius:
Circle Portion:
Circular Area:

 

Trapezoidal Field Area

 

Length 1:
Length 2:
Width:
Trapezoidal Area:

 

 

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 (degrees)

 

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)

 

 

 

 

WSU Prosser - IAREC, 24106 N Bunn Rd, Prosser WA 99350-8694, 509-786-2226,