Room Square Foot Calculator

Q: How many square feet is a 10x10 room?

A 10x10 room is 100 square feet because 10 feet x 10 feet = 100 sq ft. That equals about 11.11 square yards or 9.29 square meters.

Q: How many square feet is a 12x12 room?

A 12x12 room is 144 square feet because 12 feet x 12 feet = 144 sq ft. This is a common bedroom or home office size.

What is room square footage?

Room square footage is the total floor area of a room measured in square feet. Multiply length by width in feet to get the area. A 12 foot by 14 foot (3.66 m × 4.27 m) room has 168 square feet (15.6 square meters). For a full home total, see the house calculator; for irregular rooms, try the L-shape calculator.

Getting started

How to Calculate Room Square Footage

To calculate room square footage, measure length and width of the room in feet, then multiply length × width. A standard 10 ft × 12 ft (3.05 m × 3.66 m) room has 120 sq ft (11.15 m²). Split L-shaped rooms into 2 rectangles, calculate each area, and add the totals.

1. Measure the floor

Measure length and width in feet. For odd shapes, divide the floor into 2 or more rectangles and measure each section.

2. Multiply length × width

Multiply length × width to get area in square feet. For L-shapes, sum the area of each section.

3. Use the result

Apply room square footage to flooring orders, paint coverage, HVAC sizing, or real estate listings.

Quick reference

Reference

1 acre = 43,560 square feet

1 square yard = 9 square feet

1 square meter = 10.764 square feet

1 square inch = 0.00064516 square feet

Material pricing

Calculate Cost of Materials

Multiply room area by price per unit to get total material cost. Enter the price per square foot for hardwood, laminate, or tile. Enter the price per square yard for carpet.

There are 2 steps to calculate material cost:

Enter the price per unit. Carpet uses $/sq yd. Hardwood, laminate, and vinyl use $/sq ft. Tile uses price per box and the area each box covers.
Select the matching unit. The Square Foot Calculator multiplies area by your price for an estimated total. Add 10% waste factor for cuts and breakage.

Bedroom carpet costs $3-7 per sq ft installed. Hardwood costs $6-12 per sq ft. Tile costs $7-25 per sq ft installed.

FAQ

Frequently Asked Questions

How do I calculate the square footage of a room?

Measure the room length and width in feet, then multiply them together. A room that is 12 feet long and 10 feet wide has an area of 120 square feet. For L-shaped or irregular rooms, split the floor into rectangular sections, calculate each, and add the results.

How many square feet is a 10x10 room?

A 10x10 room is 100 square feet because 10 feet x 10 feet = 100 sq ft. That equals about 11.11 square yards or 9.29 square meters.

How many square feet is a 12x12 room?

A 12x12 room is 144 square feet because 12 feet x 12 feet = 144 sq ft. This is a common bedroom or home office size.

How do I calculate room square footage for flooring?

Measure the room length and width, multiply to get square footage, then add 10% for waste. Enter the dimensions in the Room Square Foot Calculator and add a material price per square foot to estimate total flooring cost.

What if my room is not a perfect rectangle?

Split the room into rectangular sections, calculate each area separately, and add the results. For L-shaped rooms, use the L-shape calculator option. For rooms with alcoves or closets, measure each section independently.

Does room square footage include closets?

Yes, closet space is typically included in room square footage for real estate purposes. Measure the closet as a separate rectangular section and add it to the main room area.

REFERENCES

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