Height required for an area to be considered living space
7 feet (in at least half of the space) or 6 feet and 4 inches under beams/obstructions
Area
The surface size of a 2D object
Price per square foot
Home’s sale price / area
Acreage
Property size (sq ft) / 43,560 sq ft
Hectares
Property size (acres) / 2.47 acres
Front Foot
The linear portion that abuts a street, river, etc.
Perimeter
The added length of each side
Area of a square
Side x Side
Area of a rectangle
Length x Width
Area of a triangle
(0.5 x Base) x Height
Circle
360 degrees
Semi-Circle
180 degrees
1 Degree
60 Minutes
1 Minute
60 Seconds
1 cubic ft
(12 in x 12 in x 12 in) = 1,728 cubic inches
1 cubic yard
(3 ft x 3 ft x 3 ft) = 27 cubic ft
Volume
The space taken up by an object in 3D
Cube or rectangular volume
Length x Width x Height
1 board foot
Volume = 12 x 12 x 1 = 144 cubic in
Triangular volume
½ (Length x Width x Height)
Area of a Circle
Pi x Radius squared
Volume of a Circle
Area x Height
A Cone’s Volume
Area of the base x Height x ⅓
