Cubic metre

Cubic Metre

A Cubic metre (pronunciation: /ˈkjuːbɪk ˈmiːtər/), symbol m³, is a unit of volume in the International System of Units (SI). It is defined as the volume of a cube with edges one metre in length.

Etymology

The term "cubic metre" comes from the Latin word cubus meaning "cube", and the French word mètre meaning "measure".

Related Terms

• Cubic centimetre
• Cubic decimetre
• Cubic foot
• Cubic inch
• Cubic yard
• Cubic kilometer
• Cubic millimetre

Usage in Medicine

In the field of medicine, the cubic metre is often used in the measurement of air volume in the context of lung capacity, room air changes, and the dispersion of airborne particles.

Lung Capacity

The total lung capacity of an average adult human is about 6 litres, or 0.006 cubic metres.

Room Air Changes

In hospital settings, the number of air changes per hour (ACH) is often calculated to ensure adequate ventilation. This is typically expressed in cubic metres per hour.

Airborne Particles

The concentration of airborne particles, such as bacteria or viruses, is often measured in particles per cubic metre.

See Also

• Volume
• International System of Units
• Metre

External links

• Medical encyclopedia article on Cubic metre
• Wikipedia's article - Cubic metre

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