Why isn't 1 m² equal to 3.28 × 3.28 ft²?

It is exactly that: 3.28084 × 3.28084 = 10.7639. The area factor is the square of the linear factor, not 3.28 itself.

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Square Meters to Square Feet Converter

Q: How many square feet are in a square meter?

1 square meter equals 10.7639 square feet. Multiply m² by 10.7639 to convert.

Q: What is a 20 m² room in square feet?

20 × 10.7639 = 215.28 square feet.

Convert square meters to square feet instantly with a live calculator, a room size chart, and the manual math.

📏 m² to ft² Calculator

Square Meters

Result (sq ft)

20 m² = 215.28 sq ft

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Why Square Meter Conversion Matters

Real estate is the biggest reason. European, Asian, and Australian property listings give apartment sizes in square meters; US and UK listings use square feet. A buyer comparing a 75 m² apartment with a US 800 sq ft condo needs this conversion to make any sense of the comparison. Flooring is the other classic case: tiles and laminate are sold per square meter in most of the world and per square foot in the US, so ordering the right quantity requires converting the room area first.

The key mental shift is that area conversion is not the same as length conversion. One meter is 3.28 feet, but one square meter is 3.28 × 3.28 = 10.76 square feet. People who multiply by 3.28 instead of 10.76 get answers three times too small, which is the most common mistake on this page.

square feet = square meters × 10.7639

Common Mistakes to Avoid

Using the linear factor on area. 1 m² = 10.76 ft², not 3.28 ft². Square the linear factor (3.28 × 3.28 = 10.76).
Forgetting that 1 m² is about 11 sq ft. The area number must always be about ten times larger than the square meter value. If your answer looks like the input, you used the wrong factor.
Converting room sides and multiplying separately. A 4 m × 5 m room is 20 m². You can convert the total directly (20 × 10.76 = 215 ft²), or convert each side to feet first; both give the same answer.
Rounding 10.76 to 10. That is a 7% error, enough to misorder flooring for an entire room.

Worked Example by Hand

Convert a 4 m × 5 m room to square feet:

Find the area in square meters: 4 × 5 = 20 m².
Multiply by the area factor: 20 × 10.7639 = 215.278.
Round: 215.28 sq ft.
So a 4 m × 5 m room is about 215 sq ft, roughly 13 ft × 16.4 ft.

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Room Size Reference Chart

Square Meters	Square Feet	Typical Space	Square Meters	Square Feet	Typical Space
1 m²	10.76 ft²	Doorway area	40 m²	430.56 ft²	Studio apartment
5 m²	53.82 ft²	Small bathroom	50 m²	538.20 ft²	1-bedroom flat
10 m²	107.64 ft²	Bedroom	60 m²	645.83 ft²	2-bedroom flat
12 m²	129.17 ft²	Bedroom	75 m²	807.29 ft²	3-bedroom flat
15 m²	161.46 ft²	Living room	90 m²	968.75 ft²	Small house
20 m²	215.28 ft²	Living room	100 m²	1,076.39 ft²	Medium house
25 m²	269.10 ft²	Garage	120 m²	1,291.67 ft²	Large house
30 m²	322.92 ft²	Studio	150 m²	1,614.59 ft²	Large house

Memory anchor: 1 m² ≈ 11 sq ft, so a 20 m² room is about 215 sq ft, and a 100 m² house is about 1,076 sq ft.

Frequently Asked Questions

How many square feet are in a square meter?

1 m² = 10.7639 ft², which is 3.28084 × 3.28084.

What is a 20 m² room in square feet?

20 × 10.7639 = 215.28 sq ft, roughly a 13 ft × 16.5 ft room.

Why is the area factor not the same as the length factor?

Area is two-dimensional. Since 1 m = 3.28084 ft, one square meter covers 3.28084 × 3.28084 = 10.7639 square feet.

Is a 100 m² apartment big?

100 m² = 1,076 sq ft, which is a comfortable 2-3 bedroom apartment in most cities.

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