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Square Meters to Square Millimeters Converter

Convert square meters (m²) to square millimeters (mm²), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter an area, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

About valueA number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.
About toThe unit you want the answer in. Swap exchanges the two units.
Result
Result
1,000,000 mm²
square miles
3.86102158542 × 10⁻⁷ sq mi
acres
0.000247105381467 ac
square yards
1.1959900463 sq yd
square feet
10.7639104167 sq ft
square inches
1,550.00310001 sq in
square kilometers
1 × 10⁻⁶ km²
hectares
0.0001 ha
ares
0.01 a
square centimeters
10,000 cm²
square micrometers
1,000,000,000,000 µm²

1 m² = 1,000,000 mm²

Show the working
  1. 1 m² = 1000000 mm²
  2. 1 × 1000000 = 1000000 mm²

How to convert square meters to square millimeters

1 m² = 1,000,000 mm², so multiply by 1,000,000 to go from square meters to square millimeters. Going the other way, 1 mm² = 1 × 10⁻⁶ m².

mm² = m² × 1,000,000
m² = mm² × 1

Worked example:

1 m² = 1000000 mm²
5 × 1000000 = 5000000 mm²

Square Meters to square millimeters table

Square MetersSquare Millimeters
1 m²1,000,000 mm²
2 m²2,000,000 mm²
3 m²3,000,000 mm²
4 m²4,000,000 mm²
5 m²5,000,000 mm²
6 m²6,000,000 mm²
7 m²7,000,000 mm²
8 m²8,000,000 mm²
9 m²9,000,000 mm²
10 m²10,000,000 mm²
15 m²15,000,000 mm²
20 m²20,000,000 mm²
25 m²25,000,000 mm²
30 m²30,000,000 mm²
40 m²40,000,000 mm²
50 m²50,000,000 mm²
75 m²75,000,000 mm²
100 m²100,000,000 mm²
250 m²250,000,000 mm²
500 m²500,000,000 mm²
1000 m²1,000,000,000 mm²

About the units

Square Meters (m²)
Square meters, a metric unit. Definition: BIPM SI Brochure.
Square Millimeters (mm²)
Square millimeters, a metric unit. Definition: BIPM SI Brochure (SI prefixes).

Formula version 0.1.0Reviewed