Convert Square Millimeters to Square Meters

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

How to Convert Square Millimeters to Square Meters

conversion scale showing square millimeters and equivalent square meters area values

To convert a square millimeter measurement to a square meter measurement, multiply the area by the conversion ratio. One square millimeter is equal to 1.0E-6 square meters, so use this simple formula to convert:

square meters = square millimeters × 1.0E-6

The area in square meters is equal to the square millimeters multiplied by 1.0E-6.

For example, here's how to convert 5 square millimeters to square meters using the formula above.
5 sq mm = (5 × 1.0E-6) = 5.0E-6 sq m

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.

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 . 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 Measurements and Equivalent Square Meter Conversions

Common square millimeter values converted to the equivalent square meter value
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
11 sq mm 0.000011 sq m
12 sq mm 0.000012 sq m
13 sq mm 0.000013 sq m
14 sq mm 0.000014 sq m
15 sq mm 0.000015 sq m
16 sq mm 0.000016 sq m
17 sq mm 0.000017 sq m
18 sq mm 0.000018 sq m
19 sq mm 0.000019 sq m
20 sq mm 0.00002 sq m
21 sq mm 0.000021 sq m
22 sq mm 0.000022 sq m
23 sq mm 0.000023 sq m
24 sq mm 0.000024 sq m
25 sq mm 0.000025 sq m
26 sq mm 0.000026 sq m
27 sq mm 0.000027 sq m
28 sq mm 0.000028 sq m
29 sq mm 0.000029 sq m
30 sq mm 0.00003 sq m
31 sq mm 0.000031 sq m
32 sq mm 0.000032 sq m
33 sq mm 0.000033 sq m
34 sq mm 0.000034 sq m
35 sq mm 0.000035 sq m
36 sq mm 0.000036 sq m
37 sq mm 0.000037 sq m
38 sq mm 0.000038 sq m
39 sq mm 0.000039 sq m
40 sq mm 0.00004 sq m

More Square Millimeter Area Conversions

US Customary
Convert to Square Miles
1 sq mm is equal to 3.861E-13 square miles
Convert to Acres
1 sq mm is equal to 2.4711E-10 acres
Convert to Square Yards
1 sq mm is equal to 1.196E-6 square yards
Convert to Square Feet
1 sq mm is equal to 1.0764E-5 square feet
Convert to Square Inches
1 sq mm is equal to 0.00155 square inches
SI Units
Convert to Square Kilometers
1 sq mm is equal to 1.0E-12 square kilometers
Convert to Square Centimeters
1 sq mm is equal to 0.01 square centimeters
Other Metric Units
Convert to Hectares
1 sq mm is equal to 1.0E-10 hectares
Convert to Ares
1 sq mm is equal to 1.0E-8 ares