Convert Square Millimeters to Ares

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

Results in Ares:
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1 sq mm = 1.0E-8 a

How to Convert Square Millimeters to Ares

Calculators can be used to convert measurements from one unit to another

To convert a square millimeter measurement to a are measurement, multiply the area by the conversion ratio. One square millimeter is equal to 1.0E-8 ares, so use this simple formula to convert:

ares = square millimeters × 1.0E-8

The area in ares is equal to the square millimeters multiplied by 1.0E-8.

For example, here's how to convert 5 square millimeters to ares using the formula above.
5 sq mm = (5 × 1.0E-8) = 5.0E-8 a

Square millimeters and ares 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.


One are is equal to 100 square meters, or the area of a square with 10 meter sides.

The are is a non-SI metric unit for area. Ares can be abbreviated as a, for example 1 are can be written as 1 a.

Square Millimeter Measurements and Equivalent Are Conversions

Common square millimeter values converted to the equivalent are value
Square Millimeters Ares
1 sq mm 0.00000001 a
2 sq mm 0.00000002 a
3 sq mm 0.00000003 a
4 sq mm 0.00000004 a
5 sq mm 0.00000005 a
6 sq mm 0.00000006 a
7 sq mm 0.00000007 a
8 sq mm 0.00000008 a
9 sq mm 0.00000009 a
10 sq mm 0.0000001 a
11 sq mm 0.00000011 a
12 sq mm 0.00000012 a
13 sq mm 0.00000013 a
14 sq mm 0.00000014 a
15 sq mm 0.00000015 a
16 sq mm 0.00000016 a
17 sq mm 0.00000017 a
18 sq mm 0.00000018 a
19 sq mm 0.00000019 a
20 sq mm 0.0000002 a
21 sq mm 0.00000021 a
22 sq mm 0.00000022 a
23 sq mm 0.00000023 a
24 sq mm 0.00000024 a
25 sq mm 0.00000025 a
26 sq mm 0.00000026 a
27 sq mm 0.00000027 a
28 sq mm 0.00000028 a
29 sq mm 0.00000029 a
30 sq mm 0.0000003 a
31 sq mm 0.00000031 a
32 sq mm 0.00000032 a
33 sq mm 0.00000033 a
34 sq mm 0.00000034 a
35 sq mm 0.00000035 a
36 sq mm 0.00000036 a
37 sq mm 0.00000037 a
38 sq mm 0.00000038 a
39 sq mm 0.00000039 a
40 sq mm 0.0000004 a

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 Meters
1 sq mm is equal to 1.0E-6 square meters
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