# Square Footage Calculator

> Calculate area for repeated rectangular spaces in square feet, yards, and acres. Add editable USD material and labor prices and compare low, middle and high budget scenarios.

Page: https://askcalculators.com/us/square-footage/
Definition: https://askcalculators.com/us/square-footage/definition.json
JSON Schema: https://askcalculators.com/us/square-footage/schema.json
Version: 20.13.0
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/us/square-footage/?length=12&width=10&quantity=2&unitCost=4&laborCost=300&deliveryCost=50&costSpreadPercent=15

## Inputs
- unitSystem: Dimension units; type=select; optional; default=imperial; values=imperial|metric
- length: Length (ft / m); type=number; required; default=12; min=0
- width: Width (ft / m); type=number; required; default=10; min=0
- quantity: Number of equal areas; type=number; required; default=1; min=1; max=1000000
- unitCost: Material price (USD / square foot); type=money; optional; default=0; min=0
- laborCost: Total labor allowance (USD); type=money; optional; default=0; min=0
- deliveryCost: Delivery allowance (USD); type=money; optional; default=0; min=0
- costSpreadPercent: Low/high variation around entered subtotal (%); type=percent; optional; default=15; min=0; max=100

## Outputs
- totalSquareFeet: Total square feet; format=number; primary
- singleArea: Area each; format=number
- squareYards: Square yards; format=number
- acres: Acres; format=number
- squareMetres: Total area (m²); format=number
- materialCost: Material cost; format=currency
- laborCost: Labor allowance; format=currency
- deliveryCost: Delivery allowance; format=currency
- unitRate: Entered USD rate / square foot; format=currency
- estimatedTotal: Entered subtotal; format=currency
- costLow: Low budget scenario; format=currency
- costMid: Middle budget scenario; format=currency
- costHigh: High budget scenario; format=currency
- pricingStatus: Pricing status; format=text

## Formula
Total square feet = length × width × quantity; material = unrounded purchase quantity × entered unit price; middle = material + labor + delivery; low/high = middle × (1 ∓ variation/100)

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

Notice: Planning quantities and user-entered USD costs, not a contractor quote, structural design or code approval. Default prices are zero (unpriced); enter your supplier and labor quotes. New changes await independent review.