Everyday calculators

Square footage calculator — feet and inches, several areas

Add up the square footage of rooms and odd shapes in feet and inches: rectangles, triangles and circles, with a waste allowance and an optional price per square foot.

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How to use

  1. 1

    Add an area and choose its shape.

  2. 2

    Enter feet and inches; add more areas for L-shaped rooms.

  3. 3

    Set waste % and price to get the material total.

When to use it

Buying flooring

Add every room, include 10% waste and multiply by the price per square foot.

L-shaped rooms

Enter the room as two rectangles and get one total.

Painting or sod quotes

Measure the yard or wall area to compare contractor quotes.

Good to know

  • Split an L-shaped room into two rectangles.
  • Add 5–10% waste for flooring, 15% for diagonal tile.
  • Square yards = square feet ÷ 9 for carpet.

FAQ

How do I calculate square footage?

Length × width in feet. 12 ft × 10 ft is 120 sq ft.

What about inches?

Enter them in the inches box; they are converted for you.

Can I get square meters?

Yes, the result also shows m².

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