Everyday Life Calculators

Room Size Calculator

This is an online tool that will help you calculate the size/area of a room.

room size calculator

Number of areas

Area Dimentions

Total Area
? m²
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Table of contents

How to calculate square feet
What is the area of a 20x20-square-foot room?
What is the area of a 12x12 room?
How do I find the square footage in a triangle?
How do I find the area of a circle?

How to calculate square feet

For calculating an area in square feet you will need to measure the width and length of the area (for a rectangular shape) and the diameter (for circular areas). You may find that the area you are trying to measure is of a peculiar shape, such as a room or a garden. This is where dividing the area into smaller pieces and performing individual calculations can be a great way to determine the total square footage.
Let's assume you have a rectangular-shaped space and want to calculate the square footage for flooring or carpeting. To calculate the square footage, measure the room's length and width in feet. Then multiply these two numbers together to get a result in feet.
If you need to calculate an area of square footage in an L-shaped shape, it is worth dividing the shape into rectangular sections. Then, add them together at the end.

What is the area of a 20x20-square-foot room?

400 sq. feet is the area of a room that measures 20 feet in width by 20 feet in length. Simply multiply the width and height to calculate the area. 20ft x 20ft = 400 sq ft.

What is the area of a 12x12 room?

144 sq. feet is the area of a room 12 feet in width by 12 feet in length. Simply multiply the width and the height to calculate this. 12ft x 12ft = 144 sq ft.

How do I find the square footage in a triangle?

  • In feet, measure the length at the base as well as the height at the triangle.
  • Multiply your height and base measurements together.
  • Divide your total by 2 to calculate the area of the triangle.
  • The formula to calculate the area of a triangle's square footage is base x height / 2 . Simply multiply this number by the 'price per sq foot' to calculate your cost of materials.

    How do I find the area of a circle?

  • Take the circumference of your circle and measure it in feet.
  • Divide your diameter by 2, then square it (multiply it).
  • Multiply your total with p (3.14159265)
  • p is the formula to calculate the area of a circle. (With r being half of the circle's radius, this is the radius). Pi is represented by the symbol p (3.14159265).
    Parmis Kazemi
    Article author
    Parmis Kazemi
    Parmis is a content creator who has a passion for writing and creating new things. She is also highly interested in tech and enjoys learning new things.
    Room Size Calculator English
    Published: Wed Aug 03 2022
    In category Everyday life calculators
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