Square Footage Calculator

Reference: 1 acre = 43,560 sq ft, 1 sq yd = 9 sq ft, 1 sq m = 10.76 sq ft, 1 sq in = 0.00064516 sq ft

Rectangle

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per square meter

Rectangle Border

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per square meter

Circle

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per square meter

Ring

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per square meter

Triangle with Edge Lengths

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per square meter

Triangle with Base & Height

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per square meter

Trapezoid

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Sector

meters
degrees
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Parallelogram

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Understanding Square Footage and Costs

When it comes to home projects like painting, flooring, or building a house, knowing the square footage is key to figuring out costs and materials. Here’s a quick breakdown of some important measurements:

  • 1 acre = 43,560 square feet
  • 1 square yard = 9 square feet
  • 1 square meter = 10.76 square feet
  • 1 square inch = 0.00064516 square feet

Painting Your Home

If you’re planning to paint your house, whether you hire professionals or do it yourself, understanding the square footage can help you estimate how much paint you’ll need. Pros usually base their quotes on the size of the area to be painted.

But remember, the total cost goes beyond just the paint. You’ll also need to factor in the cost of brushes, turpentine, and any prep work, mixing, and cleanup. So, the bigger the area, the more you’ll spend.

Depending on what you’re painting—wood, metal, or plastic—you might need a primer to help the paint stick better. Coverage can vary, but generally, a gallon of primer covers about 200-400 square feet.

Flooring Options

When it comes to flooring, there are several popular materials, each with its own price range and characteristics:

  • Wood Flooring: This includes hardwood, engineered wood, and bamboo. Hardwood is durable and versatile but requires maintenance like sanding and refinishing. Engineered wood is made from layers of wood and is more resistant to heat and moisture, making it easier to maintain and often cheaper than solid hardwood. Bamboo is eco-friendly and stylish but can scratch easily.
  • Laminate Flooring: Made from plywood or fiberboard topped with a plastic layer, laminate can mimic the look of wood at a lower cost. It’s durable and low-maintenance, and you can install it over existing floors. However, it can feel hard underfoot and can’t be refinished, so if you want a different look later, you’ll need to replace it entirely.
  • Tile Flooring: This includes a wide range of materials like ceramic, glass, and natural stone. Prices can vary dramatically, from as low as 60 cents per square foot to hundreds of dollars. Tile is easy to clean and maintain, but it can be cold in winter, slippery when wet, and difficult to install. Plus, if it breaks, repairs can be tricky.

Building a Home

When you’re building a home, looking at different plans and visiting other homes can help you understand what square footage works for you. The cost of building varies widely based on materials, foundation type, roof pitch, and other factors—not just size.

Unlike flooring, where you can estimate costs based on materials and installation, building a house involves many variables, making it harder to predict costs per square foot. It’s often best to get a detailed estimate from a builder based on your specific plans and then divide that by the total square footage.

Having a cost estimate can help you compare it to similar homes, giving you a clearer picture of what features you might want to include, like a luxurious master bath or elegant staircases. Don’t forget to consider additional costs like permits, labor, building code requirements, and insurance, which can add up quickly. ### Understanding Square Footage and Costs