What is 21ft² in Square Metres?

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What is 21 Square Feet (21ft²) in Square Metres (m²)?

What is 21ft² in m²? Convert 21 Square Feet (21ft²) to Square Metres (m²) and show formula, brief history on the units and quick maths for the conversion.

Enter Square Feet to convert to Square Metres


Quick Reference for Converting Square Feet to Square Metres

Formula
m² = ft² / 10.76
Quick Rough Maths
To get the Square Metres, divide the number of Square Feet by 10.8
Square Feet (ft²) in 1 Square Metre
There are 10.76 Square Feet in 1 Square Metre
Square Metres (m²) in 1 Square Foot
There are 0.09 Square Metres in 1 Square Foot

Unit Information

Square Foot
/skwɛːˌfʊt/
Symbol: ft²
Unit System: Imperial

What is the Square Foot?

The square foot is a unit of area and is an imperial unit with the symbol ft².

One square foot is equal in area to a square with edges one foot in length.

It is used a lot in expressing the internal size of a house, apartment, office or other properties so is a useful unit to understand.

Square Metre
/skwɛːˌˈmiːtə/
Symbol:
Unit System: SI

What is the Square Metre?

The square metre is a unit of area and is an SI derived unit with the symbol m².

It was introduced in 1954 when the International System of Units was established and was derived directly from one of the original 6 base units - the metre (m).

It can be prefixed with any of the SI symbols that multiply it up or down such as km² (square kilometre) or µm2 (square micrometre). It is the most commonly used unit of area and is recognised all over the world.


Conversion Tables for Square Feet (ft²) to Square Metres (m²)