mm²

What is a Square Millimeter?

Square Millimeter is an area unit used to describe surface size, land coverage or geometric sections.

Square Millimeter is an area unit used to describe surface size, land coverage or geometric sections.

The prefix milli- (one thousandth, from Latin mille) was part of the original French metric system of 1795; the square millimeter is the usual unit for wire and cable cross-sections.

Measurement system: Metric, imperial and land-measurement area usage. SI equivalent: 1 mm² = 0.000001 m².

Square Millimeter facts

Unit name
Square Millimeter
Symbol
mm²
Category
Area
Measurement system
Metric, imperial and land-measurement area usage
SI equivalent
1 mm² = 0.000001 m²
Common uses
Land records, floor area, geometry and engineering sections

Definition of the square millimeter

Square Millimeter is an area unit used to describe surface size, land coverage or geometric sections.

Measurement system and SI relationship

Metric, imperial and land-measurement area usage

SI equivalent: 1 mm² = 0.000001 m²

History of the square millimeter

The prefix milli- (one thousandth, from Latin mille) was part of the original French metric system of 1795; the square millimeter is the usual unit for wire and cable cross-sections.

Where is the square millimeter used?

Land records, floor area, geometry and engineering sections

Square Millimeter conversion tools

Sources

  1. BIPM: The International System of Units (SI Brochure)
  2. NIST: Guide for the Use of the International System of Units

Other languages

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