Square Footage Calculator (2024)

Square footage calculator is a simple tool which helps you calculate square footage area for your landscaping or construction projects.

Formula: Width x Length

Learn how to calculate

Table of Contents

What is square footage?

The Square Footage Calculator estimates the square footage of a lot, house, or other surfaces in several common shapes. If the surface is complex in shape, it may be possible to section the surface into simple shapes and add their square footages together.

What is Meant by Square Footage?

In mathematics, square footage is the measurement to calculate the area. The area is generally measured for any two-dimensional shapes that contain the set of lines. To find the square footage, simply multiply the length and width.

Formulas to calculate square footage:

Formulas to calculate square footage will depend upon the shape of which we are calculating the area or square footage. Following are some formulas:

How do I convert square meters to square feet?

We might want to know how big a 100 m2 (square meter) expressed in sq ft is. In other words, we would want to convert from sq m to sq ft and find out the square footage of that house, which is:

100 sq.m. × 10.764 sq ft/sq.m. = 1076.391 sq ft.

How do I convert acres to sq ft?

The procedure for converting square inches to square feet or from acres to sq ft is the same as converting from square meters to square feet. In the following examples, you will find the most common of these conversions: how many square feet are in an acre.

1 acre × 43 560 sq ft/acre = 43 560 sq ft
30 sq in × 0.00694 sq ft/sq in = 0.208333 sq ft

Calculations for ‘L’ shaped rooms or areas:

To calculate the square feet of an ‘L’ shaped room or area, divide the shape up into rectangular sections and treat each one as a separate area for calculation. You can then add the totals together at the end.

How to calculate square footage in different types of rooms?

Rectangular rooms: To calculate the area of a room or area with a square or rectangle shape, simply follow the formula.
Rooms with closets: Rooms with closets are like rectangular rooms with small rectangular add ons. Calculate the square footage of each rectangle, and add them together.
Odd-shaped rooms: The standard tool for area measure is something you can apply even to odd-shaped rooms. All you need to do is break the room down into separate areas that are easy to calculate on their own and then add up the results. If your room has a lot of angles, use this formula for a triangle—it’s just a rectangle or square cut in half!
Length (in feet) x width (in feet) ÷ 2 = area in sq ft

Fields of square footage

The square footage calculator is composed of the following fields:

Shape:
Select the room/area shape from rectangle, square, circle, triangle, hexagon or octagon

Measurements:
Various measurements of the room, which change depending on the shape selected

Quantity:
Enter the number of rooms/areas that have the same shape and measurements

Area:
Combined square footage of all the spaces as input above

Unit price:
Price (in the local currency) per square foot

Total cost:
Combined monetary value of the spaces

Applications of Square Footage Calculator:

  1. How to estimate the number of tiles required for floor tiling?

If you have a floor of 20 feet long and 25 feet wide, the square foot calculator can be used to measure the wall. The floor will be 500 square feet.

  1. House Painting

House painter professionals frequently base prices on a property’s square footage. It can provide accurate estimates of the amount of paint that is needed even when a person decides to paint his house himself.

  1. Flooring installation

Many products, including wood, laminate, and tile, are widely used for flooring purposes. The cost of flooring can vary considerably depending on material quality and preference. The above calculator can be used to estimate the cost of installing floors.

Conclusion

The square footage calculator is a user-friendly tool that simplifies the process of determining the area of a space. It proves invaluable in various scenarios, such as home improvement projects, real estate evaluations, and construction endeavors. By inputting the dimensions of a room or property, users can effortlessly obtain accurate measurements, aiding in precise planning and material estimation.

Square Footage Calculator (2024)

FAQs

How to calculate square footage needed? ›

To calculate feet squared (or sq. ft. for short), determine the length and width of the area you are working with, measured in feet. Multiply the length by the width and you'll have the square feet.

Where can I find the square footage of my house online for free? ›

You should be able to check with your city or county's Assessor's office. Often this information is available online through their websites. This official info is what your taxes are based on, so is probably the best "official" number for what your house square footage is.

How do you calculate square footage useable? ›

Your usable square footage is the actual area of your space as measured within the demising exterior walls of your suite. If you have a 200-foot by 200-foot rectangular space, you would multiply the 200 feet of length by the 200 feet of width to come up with 40,000 usable square feet.

How do contractors calculate square footage? ›

Measure the length and width of the building's walls. Multiply the length and width measurements to find square footage. Remember to multiply the square footage times the number of floors in the building if your facility has more than one floor.

How much square footage do you really need? ›

Well, that depends. A common belief is that 200–400 square feet is necessary for each member living in a home. For a family of five, that range becomes 1,000–2,000. However, other sources recommend 600–700 square feet per person, with others going as high as 1,000 square feet per person.

What is the formula for calculating area? ›

The basic formula for calculating area is Length times Width (LxW). If you are estimating the area for a rectangle you'll always use LxW. If you are calculating the area for a square you can multiply the length of one Side times itself, or (S2). The illustration above shows a room 12′ wide by 20′ long.

How do you find square feet without a calculator? ›

Measure the length and width of each room in feet. Next, multiply length by width to calculate the room's square footage. For instance: If a bedroom is 12 feet by 18 feet, its 216 square feet (12 x 18 = 216). Write the total square footage of each room in the corresponding spaces in your sketch.

What is not included when the square footage of your house is calculated? ›

Unfinished areas, screened or open patios, vaulted rooms, and airspaces are not factored into a home's square footage. Additionally, any space that requires passing through an unfinished area – such as a pool house, storage area, or guest house will not be factored into the home's square footage.

How can I find the exact square footage of my house? ›

If the property is a perfect rectangle, simply measure the length and width and multiply those two numbers together. For example, if your one-story house is 60 feet wide by 40 feet long, then your property is 2,400 square feet (60 x 40 = 2,400). However, most properties have more complex floor plans.

Is there an app to measure the square footage of a house? ›

Some of the apps for Android and iOS users to measure square footage are listed below: Area calculator. Easy measure. Area and distance - Map measure.

What is the formula for calculating square footage? ›

To find the square footage, simply multiply the length and width. For example, if you want to find the square footage 20 feet × 20 feet floor, then multiply the dimension 20 x 20. Hence, the square footage of 20 feet × 20 feet floor is 400 square feet.

How do landlords calculate square footage? ›

Once you have the length and width of each area, multiply the length by the width and note the square footage of each room. Once you've moved through the whole house, add the square footage of each space to calculate the total square footage of your rental property. You can round up to the nearest whole number.

How many square feet is a 12x12 room? ›

To measure square footage, multiply the length and width of the room in feet. In the case of a 12x12 room, simply multiply 12 by 12, resulting in 144 square feet.

What is the 5 foot rule for square footage? ›

If it is, then any part of the room with a ceiling of 5 feet (1.52 m) or higher should be included [source: Boddy]. If not, you shouldn't include any of that space. As for rooms in the house that aren't finished, like basem*nts or attics, they should not be included in the total square footage.

How to convert feet to square feet calculator? ›

Length (in feet) x width (in feet) = area in sq. ft. Multiply the length by the width to have the square feet.

References

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