# Square Footage Calculator

> Calculate area for repeated rectangular spaces in square feet, yards, and acres.

Page: https://askcalculators.com/calculator/square-footage-calculator/
Definition: https://askcalculators.com/calculator/square-footage-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/square-footage-calculator/schema.json
Version: 1.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/square-footage-calculator/?length=12&width=10&quantity=1

## Inputs
- length: Length; type=number; required; default=12; min=0
- width: Width; type=number; required; default=10; min=0
- quantity: Number of equal areas; type=number; required; default=1; min=1; max=1000000

## Outputs
- totalSquareFeet: Total square feet; format=number; primary
- singleArea: Area each; format=number
- squareYards: Square yards; format=number
- acres: Acres; format=number

## Formula
Total square feet = length × width × quantity

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.