How do you calculate the area of an L-shaped room?

Split the L-shaped room into two rectangles, calculate the area of each (length × width), and add the two areas together.

How do I convert square feet to square meters?

Multiply the square footage by 0.092903 to get square meters. The calculator does this conversion automatically.

Does this work for irregularly shaped rooms beyond L-shapes?

The calculator directly supports rectangles, L-shapes, and triangles. For more complex shapes, break the room into multiple rectangular or triangular sections and add the results together.

Home & Apartment CalculatorsClient-Side Calculation Engine

Room Area Calculator

Calculate square footage and square meters for room shapes.

Home & Apartment Calculators

Room Area Calculator

Calculate square footage and square meters for rectangular, L-shaped, and triangular room spaces.

Room Shape

Length 1 (ft)

Width 1 (ft)

Square Feet

180.00 sq ft

Square Meters

16.72 m²

What is the Room Area Calculator and How Does It Work?

The Room Area Calculator computes the square footage and square meters of a room, supporting simple rectangles, L-shaped rooms (as two combined rectangles), and triangular spaces.

Calculation Formula

Rectangle: L × W | Triangle: 0.5 × L × W | L-Shape: (L1 × W1) + (L2 × W2)

A rectangular room's area is length times width. A triangular space uses half the base times height. An L-shaped room is split into two rectangles, each calculated separately and added together.

Where:

L, W= Length and width of a rectangular section, in feet

L1/W1, L2/W2= The two rectangular sections that make up an L-shaped room

Worked Calculation Examples

Rectangular Bedroom

Input:14ft × 11ft

Output:154 sq ft (14.31 m²)

14 × 11 = 154 sq ft; converted to metric: 154 × 0.092903 ≈ 14.31 m².

L-Shaped Living Room

Input:Section 1: 15ft × 12ft, Section 2: 8ft × 6ft

Output:228 sq ft

(15×12) + (8×6) = 180 + 48 = 228 sq ft.

Common Real-World Use Cases

Flooring & Paint Estimates

Get an accurate square footage figure to feed into flooring or paint quantity calculations.

Real Estate Listings

Calculate room-by-room square footage for property descriptions or floor plans.

Furniture Planning

Confirm a room's total area before planning furniture layout or rug sizing.

How to Use the Room Area Calculator

1Choose your room shape: rectangle, L-shape, or triangle.
2Enter the length and width for each section of the room.
3For L-shaped rooms, enter dimensions for both rectangular sections.
4View the total area in both square feet and square meters.

Pro Tips & Suggestions

•For irregular rooms, split the space into rectangles and triangles, then sum the individual areas.
•Measure at floor level for the most accurate square footage, since walls are not always perfectly straight.

Frequently Asked Questions

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