Square Millimeters to Square Meters Conversion

Enter the area in square millimeters below to get the value converted to square meters.

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1 sq mm = 1.0E-6 sq m
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Do you want to convert square meters to square millimeters?

How to Convert Square Millimeters to Square Meters

To convert a square millimeter measurement to a square meter measurement, divide the area by the conversion ratio.

Since one square meter is equal to 1,000,000 square millimeters, you can use this simple formula to convert:

square meters = square millimeters ÷ 1,000,000

The area in square meters is equal to the square millimeters divided by 1,000,000.

For example, here's how to convert 5,000 square millimeters to square meters using the formula above.
5,000 sq mm = (5,000 ÷ 1,000,000) = 0.005 sq m
conversion scale showing square millimeters and equivalent square meters area values

Square millimeters and square meters are both units used to measure area. Keep reading to learn more about each unit of measure.

Square Millimeters

One square millimeter is equal to the area of a square with edges that are 1 millimeter in length.

The square millimeter, or square millimetre, is a multiple of the square meter, which is the SI derived unit for area. In the metric system, "milli" is the prefix for 10-3. A square millimeter is sometimes also referred to as a square mm. Square millimeters can be abbreviated as sq mm, and are also sometimes abbreviated as mm². For example, 1 square millimeter can be written as 1 sq mm or 1 mm².

Square Meters

One square meter is equal to the area of a square with sides that are 1 meter in length.[1]

The square meter, or square metre, is the SI derived unit for area in the metric system. A square meter is sometimes also referred to as a square m. Square meters can be abbreviated as sq m, and are also sometimes abbreviated as m². For example, 1 square meter can be written as 1 sq m or 1 m².

Try our square meters calculator to calculate the area of a space.

Square Millimeter to Square Meter Conversion Table

Square millimeter measurements converted to square meters
Square Millimeters Square Meters
1 sq mm 0.000001 sq m
2 sq mm 0.000002 sq m
3 sq mm 0.000003 sq m
4 sq mm 0.000004 sq m
5 sq mm 0.000005 sq m
6 sq mm 0.000006 sq m
7 sq mm 0.000007 sq m
8 sq mm 0.000008 sq m
9 sq mm 0.000009 sq m
10 sq mm 0.00001 sq m
100 sq mm 0.0001 sq m
1,000 sq mm 0.001 sq m
10,000 sq mm 0.01 sq m
100,000 sq mm 0.1 sq m
1,000,000 sq mm 1 sq m

References

  1. Collins Dictionary, Definition of 'square meter', https://www.collinsdictionary.com/us/dictionary/english/square-meter

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