House Square Footage Calculator
Use this calculator to estimate the total square footage of your house or individual rooms. Simply enter the length and width of each area in feet, and the calculator will provide the square footage for each section and the overall total.
Understanding House Square Footage
Square footage is a fundamental measurement in real estate, representing the total area of a property's living space. It's calculated by multiplying the length by the width of each room or area and then summing these individual measurements to get a total.
Why is Square Footage Important?
- Buying and Selling: It's a primary factor in determining a home's value and price per square foot.
- Renovations and Remodeling: Contractors use square footage to estimate material costs (flooring, paint, drywall) and labor.
- Property Taxes: Local tax authorities often base property assessments, in part, on the total square footage.
- Space Planning: Helps you understand how much furniture can fit or how spacious a home truly is.
How to Measure Accurately
- Clear the Area: Move furniture away from walls to get precise measurements.
- Measure Wall-to-Wall: Use a tape measure to find the length and width of each room from one wall to the opposite wall.
- Irregular Shapes: For L-shaped rooms or other irregular layouts, break the room down into simpler rectangles, calculate the square footage of each section, and then add them together.
- Include Closets and Hallways: These are typically considered part of the living space and should be included in your total.
- Exclude Non-Living Areas: Garages, unfinished basements, attics, and outdoor spaces (like patios or decks) are generally not included in the heated/cooled square footage calculation.
- Multi-Story Homes: Measure each floor separately and then sum them up for the total house square footage.
Using the Calculator
Our House Square Footage Calculator simplifies this process. Enter the length and width for each specified room or area. If you have more rooms, you can combine smaller, similar areas into the "Other Area" field or simply add up the results from multiple calculations. The calculator will instantly provide the square footage for each entry and a grand total for your entire house.
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"; function calculateRoomSqFt(length, width, roomName) { if (isNaN(length) || isNaN(width) || length < 0 || width < 0) { return { sqft: 0, error: roomName + ": Invalid length or width. Please enter positive numbers." }; } var sqft = length * width; totalSqFt += sqft; return { sqft: sqft, error: null }; } var livingRoom = calculateRoomSqFt(livingRoomLength, livingRoomWidth, "Living Room"); var kitchen = calculateRoomSqFt(kitchenLength, kitchenWidth, "Kitchen"); var bedroom1 = calculateRoomSqFt(bedroom1Length, bedroom1Width, "Bedroom 1"); var bedroom2 = calculateRoomSqFt(bedroom2Length, bedroom2Width, "Bedroom 2"); var bathroom1 = calculateRoomSqFt(bathroom1Length, bathroom1Width, "Bathroom 1"); var otherArea = calculateRoomSqFt(otherAreaLength, otherAreaWidth, "Other Area"); var hasError = false; if (livingRoom.error) { outputHtml += "" + livingRoom.error + ""; hasError = true; } if (kitchen.error) { outputHtml += "" + kitchen.error + ""; hasError = true; } if (bedroom1.error) { outputHtml += "" + bedroom1.error + ""; hasError = true; } if (bedroom2.error) { outputHtml += "" + bedroom2.error + ""; hasError = true; } if (bathroom1.error) { outputHtml += "" + bathroom1.error + ""; hasError = true; } if (otherArea.error) { outputHtml += "" + otherArea.error + ""; hasError = true; } if (hasError) { resultDiv.innerHTML = outputHtml; return; } outputHtml += "Living Room: " + livingRoom.sqft.toFixed(2) + " sq ft"; outputHtml += "Kitchen: " + kitchen.sqft.toFixed(2) + " sq ft"; outputHtml += "Bedroom 1: " + bedroom1.sqft.toFixed(2) + " sq ft"; outputHtml += "Bedroom 2: " + bedroom2.sqft.toFixed(2) + " sq ft"; outputHtml += "Bathroom 1: " + bathroom1.sqft.toFixed(2) + " sq ft"; outputHtml += "Other Area: " + otherArea.sqft.toFixed(2) + " sq ft"; outputHtml += ""; outputHtml += "Total House Square Footage: " + totalSqFt.toFixed(2) + " sq ft"; resultDiv.innerHTML = outputHtml; }