Information

Surface measurements


Introduction

Surface measurements are part of our daily lives and answer our most common daily questions:

  • What is the area of ​​this room?

  • What is the area of ​​this apartment?

  • How many square meters of tiles do you need to cover this pool?

  • What is the area of ​​this indoor soccer court?

  • What is the painted area of ​​this wall?

Surface and area

Surface is a two-dimensional quantity, while area is the measure of this magnitude, therefore, a number.

Square meter

The fundamental unit of surface is called square meter. The square meter (m2) is the measurement corresponding to the surface of a square with 1 meter side.

MultiplesCore UnitSubmultiples
square kilometer square hectometersquare diametersquare metersquare decimetersquare centimetersquare millimeter
km2hm2dam2m2dm2cm2mm2
1,000,000m210,000m2100m21m20.01m20.0001m20.000001m2
Multiplessquare kilometer km21,000,000m2
square hectometerhm210,000m2
square diameterdam2100m2
Core Unitsquare meterm21m2
Submultiplessquare decimeterdm20.01m2
square centimetercm20.0001m2
square millimetermm20.000001m2

The dam2, Oh M2 and km2 are used to measure large surfaces while dm2, the cm2 and the mm2 They are used for small surfaces.

Examples

1) Read the following measurement: 12.56m2

km2hm2dam2m2dm2cm2mm2
12,56

It reads "12 square meters and 56 square centimeters". Each column of this table corresponds to one unit of area.

2) Read the following measurement: 178.3 m2

km2hm2dam2m2dm2cm2mm2
178,30

It reads "178 square meters and 30 square decimeters".

3) Read the following measurement: 0.917 dam2

km2hm2dam2m2dm2cm2mm2
0,9170

It reads 9,170 square decimeters.

Agrarian measures

Agrarian measures are used to measure field surfaces, crops, pastures, farms, etc. The main unit of these measures is the are (The). It has one multiple, the hectare (there is), and a submultiple, the centiare (here).

unity
agrarian
hectare (ha)area)centiare (ca)
Equivalence
of value
100a1st0.01a

Remember if:

1 ha = 1hm2
1a = 1 dam2
1ca = 1m2

Next: Transforming Units