Square Mm to Square Feet Converter (mm² to ft²)

How to convert square millimeters to square feet

Formulaft² = mm² × 0.00001076391042

Multiply the value in square millimeters by 0.00001076391042. To go the other way, multiply by 92,903.04 (or divide by 0.00001076391042).

A square millimeter is smaller than a square foot: it takes 92,903.04 square millimeters to make one square foot.

Worked examples

1 square millimeter1 mm² × 0.00001076391042 = 0.00001076391042 ft²
5 square millimeters5 mm² × 0.00001076391042 = 0.00005381955208 ft²
10 square millimeters10 mm² × 0.00001076391042 = 0.0001076391042 ft²
20 square millimeters20 mm² × 0.00001076391042 = 0.0002152782083 ft²
100 square millimeters100 mm² × 0.00001076391042 = 0.001076391042 ft²

Square millimeters to square feet conversion table

Values are calculated by the conversion engine and rounded to 8 significant figures.

Square millimeters to square feet: 0.1–10 mm²
Square millimeters (mm²)	Square feet (ft²)
0.1 mm²	0.000001076391 ft²
0.25 mm²	0.0000026909776 ft²
0.5 mm²	0.0000053819552 ft²
1 mm²	0.00001076391 ft²
2 mm²	0.000021527821 ft²
3 mm²	0.000032291731 ft²
4 mm²	0.000043055642 ft²
5 mm²	0.000053819552 ft²
6 mm²	0.000064583463 ft²
7 mm²	0.000075347373 ft²
8 mm²	0.000086111283 ft²
9 mm²	0.000096875194 ft²
10 mm²	0.0001076391 ft²

Square millimeters to square feet: 12–1,000 mm²
Square millimeters (mm²)	Square feet (ft²)
12 mm²	0.00012916693 ft²
15 mm²	0.00016145866 ft²
20 mm²	0.00021527821 ft²
25 mm²	0.00026909776 ft²
30 mm²	0.00032291731 ft²
40 mm²	0.00043055642 ft²
50 mm²	0.00053819552 ft²
75 mm²	0.00080729328 ft²
100 mm²	0.001076391 ft²
250 mm²	0.0026909776 ft²
500 mm²	0.0053819552 ft²
1,000 mm²	0.01076391 ft²

About the units

Square millimeter (mm²)

Used for wire cross-sections in metric countries (e.g. 2.5 mm² cable). One square millimeter equals 0.000001 square meters (m²).

Square foot (ft²)

A square one foot on each side, exactly 0.09290304 m². The standard unit for US home, rental and flooring areas.

Frequently asked questions

How many square feet are in one square millimeter?

There are 0.00001076391042 square feet in one square millimeter, and this value is exact by definition.

How do I convert square millimeters to square feet?

Multiply the number of square millimeters by 0.00001076391042. For example, 10 mm² × 0.00001076391042 = 0.0001076391042 ft².

How many square millimeters are in one square foot?

One square foot equals 92,903.04 square millimeters. That is the reverse factor, 1 ÷ 0.00001076391042.

What is 10 square millimeters in square feet?

10 mm² = 0.0001076391042 ft².

Is this mm² to ft² converter accurate?

Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.

Square Mm to Square Feet Converter