13 By 15 Square Feet

To employ this calculator:

Measure out and record the dimensions of your room.
Select the room's shape, enter your measurements and click the "Summate" button to determine its expanse in square feet.
To calculate the expanse of multiple rooms, click "Add a new shape" to create a new calculator for every room or shape. Select the shape of the room, input its measurements, then click the "Calculate" button. Repeat as necessary. Your total square footage will update accordingly.

Above, we've included a multi-role square footage calculator so you tin measure your entire home or get the verbal measurements for materials for a projection, regardless of the shape of each room or space. Our calculator allows you to find the square footage of a unmarried room, or calculate the entire livable indoor space in your home.

Here are some reasons why you lot might desire to measure your habitation:

Renovation planning
Planning landscaping projects
Estimating the gross living area (GLA) for an appraisement

When it comes to your home, there are many reasons why it's important to know how to calculate square footage. If you're ownership or selling a dwelling house just you aren't ready to pay the price of hiring a home appraiser, our calculator and guide tin help you lot get the process started.

How To Measure Square Feet

Most home projects involving flooring require y'all to know the square footage of your space. Prior to hiring a local floor installation to redo your floors, measure the space that the professional volition be working with and ask for a material or labor projection quote.

To measure square footage, you'll need the following.

100-foot tape mensurate
Basic calculator
Pen or pencil
Notepad, printable measurement worksheet and/or a copy of your dwelling's floor plan

Footstep 1: Sketch and Divide Each Room into Shapes

Impress out our measurement worksheet, or make a re-create of your home'southward floor plan (if you need to measure out the unabridged space).
Sketch the shape of the room. If your room is an irregular shape, separate the room into simple shapes.

Square Footage Measurement Sheet Mockup

About rooms tin be broken downwards into rectangular shapes, and then information technology's piece of cake to summate the area. Notwithstanding, irregular spaces like circular dining rooms or triangular closets can evidence to be more than difficult. Our calculators in a higher place can help yous streamline these calculations.

diagram of how to measure a circle, square, triangle or trapezoid

Step 2: Measure the Room to Calculate Square Footage

Measure the length, width, or radius of the different shapes yous've sketched in inches. This helps yous avert adding fractions and compound numbers. Keep your measurements in their simplest class, and always round up to the nearest inch. Use a notepad or our printable sheet higher up to jot downwards the measurements in inches equally you measure each room of the firm.

Pace 3: Convert Inches To Feet and Summate Foursquare Footage

Split your measurements in inches past 12, which will convert your measurements into anxiety.
And then, apply our square footage reckoner to detect the area of your infinite'southward shape. If you've divided a room into multiple shapes, remember to add upwardly all of the shapes' areas to find the room'southward total surface area. Using our estimator's "Add together the new shape" button, you lot tin can easily input measurements for different shapes and summate total surface area.

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How To Calculate Square Footage of a House for Appraisal

For real estate advertisements and listings, most agents determine square footage past measuring the house'southward exterior dimensions. To calculate in this way, measure out corner-to-corner or end-to-end of your home outside. Then, take the exterior length and multiply by the width.

Real manor agents often measure out direct corner-to-corner to find the total area. They then deduct non-heated spaces and add heated spaces whose footprints exceed the end-to-end measurement. This process tin can get complicated. If y'all're selling your home, you'll probably need a measurement from a certified appraiser. These are the instances when hiring a business firm appraiser well-nigh you is the best option.

It's particularly useful to hire someone familiar with the local rules and standards for these calculations and valuing other aspects of a domicile. As objective every bit the procedure is supposed to exist, these factors impact the last value the home appraiser reaches.

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What Counts as Foursquare Footage

woman measures square footage of a room

Square footage generally refers to the parts of a house that have finished flooring, walls, ceilings and the power to live in yr-round. The inclusion of some areas into your full tin can only be considered on a instance-by-case basis, such as finished basements*. Before you take out your measuring tape, keep this in mind:

Areas that almost always count towards square footage:

All indoor rooms*
Stairways
Closet areas
Livable attics (if the surface area has at least seven feet of clearance)

Areas that don't usually count:

Dens
Garages
Puddle houses
Porches
Patios or courtyards
Unfinished basements*

*Proceed in mind: A basement must run into specific criteria to add it to a dwelling house's full square footage — it must be finished to the aforementioned quality standards as the rest of the house.

Typically, the American National Standards Establish (ANSI) sets the standard on what counts as foursquare footage in a domicile, but the guidelines aren't always enforced. Plus, multiple listing services (MLS) guidelines across the U.S. take different rules on reporting. What counts as finished square footage depending on diverse local factors.

FAQs

couple measures wall to find square footage

When measuring square footage for tile, how much overage should you business relationship for?

Account for 10% of overage when calculating the full expanse of a space. Simply multiply the total measurement by 1.i to determine how much overage you need. Finally, add your overage to the total area. That will be the approximate amount of flooring or wall tiles you lot need to order.

When calculating how much tile a project requires, be certain to bank check out our tile calculator.

When measuring square footage for carpeting, how much overage should you business relationship for?

After computing your square footage, add 10% of overage to your carpet club for cutting, waste product and staggering the carpet joints. For example, allow's say you have a 10 by 10 room, which is 100 square feet. When because the cost of carpet installation, order x% more for a full of 110 square footage of carpet to account for overage.

For convenience, check out our convenient carpet calculator.

female architect works on home draft

What qualifies equally a "finished" indoor infinite when calculating square feet?

Depending on your state, different indoor spaces qualify every bit "finished". For example, in most cases, a finished garage or detached puddle house won't count towards the square footage of a habitation. Withal, these spaces are normally listed separately. Keep in mind that your basement must have flooring or carpeting and an HVAC system to authorize as a "finished" basement.

How practise I calculate the square footage of my kitchen?

Approach calculating the size of your kitchen the same way you lot'd arroyo whatsoever other room. Be sure to measure the length and width of each bay window, alcove or offset. Think, your counter space, cabinetry, walk-in pantry and kitchen island are included in the foursquare footage of your kitchen.

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