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Room Area Calculator - Find Total Room Area in Square Feet and Square Meters

Last updated: 21 May 2025 | Author: Brij | Review By: Irshad
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Easily find the total area of multiple rooms in both square feet (sq ft) and square meters (m²). Perfect for home improvement, flooring, or interior design planning.

Room 1
ft
ft
ft²
Total House Area
ft²
m²

What is a Room Area Calculator?

A Room Area Calculator helps you quickly determine the total area of one or more rooms by entering the length and width of each room. It provides results in both imperial units (sq ft) and metric units (m²) — making it ideal for homeowners, builders, and interior designers.

Formula to Calculate Room Area

1. Area of a Single Room (in square feet)

To calculate the area of a room:

Area (sq ft)=Length (ft)×Width (ft)\text{Area (sq ft)} = \text{Length (ft)} \times \text{Width (ft)}Area (sq ft)=Length (ft)×Width (ft)

2. Total Area for Multiple Rooms (in square feet)

Add the area of all rooms:

Total Area (sq ft)=∑i=1n(Lengthi×Widthi)\text{Total Area (sq ft)} = \sum_{i=1}^{n} (\text{Length}_i \times \text{Width}_i)Total Area (sq ft)=∑i=1n​(Lengthi​×Widthi​)

3. Convert Total Area to Square Meters

Use the conversion factor:

1 square foot = 0.092903 square meters

Total Area (m²)=Total Area (sq ft)×0.092903\text{Total Area (m²)} = \text{Total Area (sq ft)} \times 0.092903Total Area (m²)=Total Area (sq ft)×0.092903

Example Calculation

Let’s say you have 3 rooms:

  • Room 1: 12 ft × 10 ft
  • Room 2: 14 ft × 11 ft
  • Room 3: 10 ft × 9 ft

Step 1: Calculate Each Room's Area

Room 1:

Room 1: 12×10=120 sq ft\text{Room 1: } 12 \times 10 = 120 \, \text{sq ft}Room 1: 12×10=120sq ft

Room 2:

Room 2: 14×11=154 sq ft\text{Room 2: } 14 \times 11 = 154 \, \text{sq ft}Room 2: 14×11=154sq ft

Room 3:

Room 3: 10×9=90 sq ft\text{Room 3: } 10 \times 9 = 90 \, \text{sq ft}Room 3: 10×9=90sq ft

Step 2: Add Total Area in sq ft

Total Area (sq ft)=120+154+90=364 sq ft\text{Total Area (sq ft)} = 120 + 154 + 90 = 364 \, \text{sq ft}Total Area (sq ft)=120+154+90=364sq ft

Step 3: Convert to Square Meters

Total Area (m²)=364×0.092903≈33.81 m²\text{Total Area (m²)} = 364 \times 0.092903 \approx 33.81 \, \text{m²}Total Area (m²)=364×0.092903≈33.81m²

Frequently Asked Questions

Q1. Can I calculate the area of irregular-shaped rooms?

This calculator is for rectangular rooms. For irregular rooms, divide them into rectangles, calculate each area, and sum them up.

Q2. Why does the calculator show results in square meters?

To help users around the world, we provide both square feet (imperial) and square meters (metric).

Q3. Can I use this for flooring estimates?

Yes! Total area is essential for estimating materials like tiles, carpet, or laminate.

Room Area Calculator - Find Total Room Area in Square Feet and Square Meters

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