Square Footage Calculator
Rectangle
A plain four-sided area — a room, a slab, a lawn.
Example
This is a sample result, not your calculation. Enter your own values to replace it.
Enter the length and width, then calculate the area.
Area =
—Square Feet
The same area in other units
- Square Inches
- —
- Square Yards
- —
- Square Meters
- —
- Acres
- —
Check your entries
Rectangle Border
The band around the inside edge of a rectangle — a walkway or a surround.
Example
This is a sample result, not your calculation. Enter your own values to replace it.
Enter the length and width and border width, then calculate the area.
Area =
—Square Feet
The same area in other units
- Square Inches
- —
- Square Yards
- —
- Square Meters
- —
- Acres
- —
Check your entries
Circle
A round area, measured across the middle.
Example
This is a sample result, not your calculation. Enter your own values to replace it.
Enter the diameter, then calculate the area.
Area =
—Square Feet
The same area in other units
- Square Inches
- —
- Square Yards
- —
- Square Meters
- —
- Acres
- —
Check your entries
Ring
The band around the inside edge of a circle.
Example
This is a sample result, not your calculation. Enter your own values to replace it.
Enter the outer diameter and border width, then calculate the area.
Area =
—Square Feet
The same area in other units
- Square Inches
- —
- Square Yards
- —
- Square Meters
- —
- Acres
- —
Check your entries
Triangle with Edge Lengths
Three sides measured, no angles needed.
Example
This is a sample result, not your calculation. Enter your own values to replace it.
Enter the edge 1 (a) and edge 2 (b) and edge 3 (c), then calculate the area.
Area =
—Square Feet
The same area in other units
- Square Inches
- —
- Square Yards
- —
- Square Meters
- —
- Acres
- —
Check your entries
Triangle with Base & Height
One side and the perpendicular height to it.
Example
This is a sample result, not your calculation. Enter your own values to replace it.
Enter the base and height, then calculate the area.
Area =
—Square Feet
The same area in other units
- Square Inches
- —
- Square Yards
- —
- Square Meters
- —
- Acres
- —
Check your entries
Trapezoid
Two parallel sides and the distance between them.
Example
This is a sample result, not your calculation. Enter your own values to replace it.
Enter the base 1 and base 2 and height, then calculate the area.
Area =
—Square Feet
The same area in other units
- Square Inches
- —
- Square Yards
- —
- Square Meters
- —
- Acres
- —
Check your entries
Sector
A wedge of a circle — a fan, a curved corner.
Example
This is a sample result, not your calculation. Enter your own values to replace it.
Enter the radius and angle, then calculate the area.
Area =
—Square Feet
The same area in other units
- Square Inches
- —
- Square Yards
- —
- Square Meters
- —
- Acres
- —
Check your entries
Parallelogram
A slanted rectangle — base times perpendicular height.
Example
This is a sample result, not your calculation. Enter your own values to replace it.
Enter the base and height, then calculate the area.
Area =
—Square Feet
The same area in other units
- Square Inches
- —
- Square Yards
- —
- Square Meters
- —
- Acres
- —
Check your entries