Convert 40 square meters to square feet

Explanation

Let's convert 40 square meters to square feet, or m² to sq ft as one could put it.

First, we need to calculate the conversion factor using the units respective values. We find 10.7639.

Then we multiply this conversion factor by the number of square meters. In this case 40.

Therefore, 40 square meters is approximately equal to 430.5564 square feet.

Formula

1 m²≈10.7639 sq ft

40 m²≈40 × 10.7639 sq ft

40 m²≈430.5564 sq ft

square metersm²

dimension	area
system	International system of units (SI)
symbol	m², sq m

The square meter (m², sq m) is a derived area unit in the International System of Units.

Definition of the square meter

One square meter is a superficial area equivalent to that of a square whose sides are one meter long.

Equivalences

One square meter is equivalent to:

SI Area Units

square millimeter	mm²	0.000001
square centimeter	cm²	0.0001
square meter	m²	1
square kilometer	km²	1000000

The International System of Units

The International System of Units or SI (from the French Système international (d'unité)), also called metric system in the U.S., is a coherent system of units that was published 1960. It is official in nearly every country.

The General Conference on Weights and Measures (Conférence générale des poids et mesures) is tasked with overseeing the SI.

square feetsq ft

dimension	area
symbol	sq ft, ft²
search alias	ft2, sqft

The square foot (sq ft, ft²) is a derived unit of area in the international mass and length units.

The unit is mainly used in real estate in the United States. In the rest of the world the square meter is used instead.

Definition of the square foot

One square foot is equal to ¹⁄₉ square yard.

From the Weights and Measures Act of 1985: PART VI: Measurement of area

Value in terms of the SI

One square foot is equivalent to 929.0304 square centimeters.

Equivalences

One square foot is also equivalent to:

144 square inches

Some Facts

The White House has 55 000 square feet of floor space, 5% less than the total area of an American football field.

International area units

square inch	sq in
square foot	sq ft	144 square inches
square yard	sq yd	9 square feet
square mile	sq mi	3 097 600 square yards

The International Mass and Length Units

The International Mass and Length Units are units based on the international yard and the international pound.

They were created in 1959 when Australia, Canada, New Zealand, South Africa, the United Kingdom and the United States of America agreed upon a common definition of the yard and the pound.