1. Measure each room
Measure length and width of every interior room in feet. Note alcoves, closets, and bump-outs separately.
What is house square footage?
House square footage is the total interior floor area of a home measured in square feet. Add the area of every rectangular room together. A 2,000 sq ft (185.8 m²) home is the U.S. median for new construction.
Getting started
How to Calculate House Square Footage
To calculate house square footage, measure the length and width of every room in feet. Multiply length × width for each room and sum the results. Exclude unfinished basements, garages, and outdoor patios from real estate square footage.
2. Sum all room areas
Multiply length × width for each room. Add all room totals to get house square footage.
3. Use for listings or budgets
Use house area for real estate listings, HVAC sizing, insurance valuation, and whole-home material estimates.
Quick reference
Reference
1 acre = 43,560 square feet
1 square yard = 9 square feet
1 square meter = 10.764 square feet
1 square inch = 0.00064516 square feet
Material pricing
Calculate Cost of Materials
House square footage drives the cost of whole-home renovations. Multiply total area by the price per unit of any material covering the entire home.
There are 2 steps to calculate material cost:
- Enter the price per square foot for flooring, paint, or insulation that covers the full house area.
- The Square Foot Calculator multiplies your house area by the unit price to give the total material cost.
Whole-home flooring averages $6,000-30,000 for a 1,500 sq ft home. Whole-home painting averages $2,000-6,000.
Calculating the Square Footage of a House or Property
Measure the length and width of every rectangular room inside the building. Calculate the area for each room, then add the totals together. Exclude unfinished basements and garages from standard real estate square footage. A house with a 250 sq ft living room, 180 sq ft kitchen, 200 sq ft bedroom, and 50 sq ft bathroom has a total area of 680 square feet.
For rooms with alcoves or closets, measure each rectangular section separately and add the areas. The Square Foot Calculator supports quantity input so you can calculate multiple rooms of the same size at once.
FAQ
Frequently Asked Questions
How do I calculate the total square footage of a house?
Measure each room's length and width in feet, multiply to get each room's area, then add all room areas together. Include hallways, closets, and all finished living spaces.
What rooms are included in house square footage?
All finished, heated living spaces are included: bedrooms, bathrooms, kitchen, living room, dining room, hallways, and closets. Garages, unfinished basements, and outdoor areas are typically excluded.
How many square feet is the average house?
The average US house is approximately 2,300 square feet. Sizes vary widely by region, with urban homes typically smaller and suburban homes larger.
Does house square footage include the garage?
No, garage space is not typically included in standard house square footage. Real estate listings count only finished, climate-controlled living areas.
How do I measure a multi-story house?
Measure each floor separately and add the totals together. The ground floor and upper floors each contribute to total square footage. Finished attics count; unfinished attics do not.
Why is house square footage important?
House square footage determines property value, HVAC requirements, material needs for renovations, and insurance costs. Accurate measurements help with real estate listings, home improvement budgets, and utility planning.
参考文献
さらなる読み物と参考文献
信頼できる外部ソースとこのサイトの関連セクション。外部リンクはWikipediaや政府機関の権威ある参考文献を開きます。
権威ある外部参考文献
- WIKIHouse — Wikipedia
- WIKIFloor area — Wikipedia
- WIKISquare foot — Wikipedia
- GOVU.S. Census Bureau: Housing