Square Feet to Acres Converter
Convert square feet to acres instantly. Fast, accurate, and mobile-friendly area converter for real estate and land measurement.
Homes, apartments
Land lots, farms
Quick Conversion Formulas
Common Area Reference Points
Tennis Court
2,808 sq ft / 260.87 sq m
Basketball Court
4,700 sq ft / 436.64 sq m
Acre (Football Field)
43,560 sq ft / 4,046.86 sq m
City Block (typical)
2-5 acres / 100,000 sq ft
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Square Feet to Acres Formula
acres = square feet ÷ 43,560
How to convert square feet to acres:
- Take the number of acres you want to convert
- Divide by 43,560 (since there are 43,560 square feet in 1 acre)
- The result is the area in square feet
Example:
Convert 2.5 square feet to acres:
acres = 108,900 ÷ 43,560 = 2.5 acres
⚠️ Important Disclaimer
This tool provides estimates for informational purposes only. Results should not be relied upon for important decisions. Always consult with a qualified professional for advice specific to your situation.
Square Feet to Acres Conversion Table
| Acres | Square Feet | Common Use |
|---|---|---|
| 0.1 acre | 4,356 sq ft | Small residential lot |
| 0.25 acre | 10,890 sq ft | Quarter acre lot |
| 0.5 acre | 21,780 sq ft | Half acre lot |
| 1 acre | 43,560 sq ft | Standard acre |
| 2 acres | 87,120 sq ft | Large residential property |
| 5 acres | 217,800 sq ft | Small farm |
| 10 acres | 435,600 sq ft | Medium farm plot |
| 25 acres | 1,089,000 sq ft | Large farm |
| 50 acres | 2,178,000 sq ft | Agricultural land |
| 100 acres | 4,356,000 sq ft | Large agricultural property |
Understanding Acres and Square Feet
The Acre
The acre is a traditional unit of land area used in the United States, United Kingdom, and other countries. It originated in medieval England as the amount of land tillable by one man behind one ox in one day.
Today, one acre is defined as exactly 43,560 square feet. This makes it a practical unit for measuring residential lots, farms, and parks.
Common uses for acres:
- Residential property lots (0.25-1 acre typical)
- Agricultural land (farms of 50-500+ acres)
- Parks and recreational areas
- Commercial development sites
Square Feet
Square feet (sq ft) is the standard unit for measuring area in the United States. It's used extensively in real estate to describe building sizes, room dimensions, and property areas.
One square foot equals a square that is 1 foot on each side. When dealing with land, square feet are often converted to acres for easier comprehension of larger areas.
Common uses for square feet:
- Home size (1,500-2,500 sq ft average)
- Apartment floor plans
- Commercial retail space
- Office space allocation
Real-World Applications
Real Estate Listings:
Property lots are often advertised in acres (e.g., "0.5-acre lot"), while the building size is given in square feet (e.g., "2,000 sq ft home"). Understanding both units helps buyers evaluate properties.
Construction Planning:
Builders use square feet for detailed construction plans and material calculations, but discuss overall site size in acres when talking about land development projects.
Frequently Asked Questions
How many square feet are in 1 acre?
There are exactly 43,560 square feet in one acre. This is the standard conversion used throughout the United States for real estate, agriculture, and land measurement.
How do I convert 0.5 square feet to acres?
Multiply 0.5 by 43,560: 0.5 × 43,560 = 21,780 square feet. A half-acre lot is a common residential property size in suburban areas.
Why is an acre 43,560 square feet?
The acre originated as the area of land that could be plowed by one man with one ox in one day. Over time, it was standardized to 43,560 square feet, which equals 1 chain × 10 chains (66 feet × 660 feet) in the old surveying system.
What size is a quarter-acre lot in square feet?
A quarter-acre lot equals 10,890 square feet (43,560 ÷ 4 = 10,890). This is a typical suburban residential lot size, providing space for a house, yard, and landscaping.
How many football fields fit in an acre?
An American football field (including end zones) is about 1.32 acres or 57,600 square feet. So one acre is roughly 75% the size of a football field, making it a useful visual reference.