Area
Surface, land and cross-sectional area.
Try a decimal, 1e-9, 1/3, or 5 1/2.
EVERYDAY · ENGINEERING · SCIENCE
Convert square millimetre (mm²) to square foot (ft²). Enter a value for an instant result, or use the examples and reverse conversion below.
Surface, land and cross-sectional area.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Enter a square millimetre value to calculate square foot with full internal precision before display rounding.
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
| Unit | Symbol | Converted value |
|---|---|---|
| square micrometrefrom mm² | µm² | 1000000 |
| square millimetrefrom mm² | mm² | 1 |
| square centimetrefrom mm² | cm² | 0.01 |
| square decimetrefrom mm² | dm² | 0.0001 |
| square metrefrom mm² | m² | 0.000001 |
| arefrom mm² | a | 0.00000001 |
| hectarefrom mm² | ha | 1e-10 |
| square kilometrefrom mm² | km² | 1e-12 |
| square inchfrom mm² | in² | 0.00155 |
| square footfrom mm² | ft² | 0.0000107639 |
| square yardfrom mm² | yd² | 0.00000119599 |
| acrefrom mm² | acre | 2.47105e-10 |
| square milefrom mm² | mi² | 3.86102e-13 |
| barnfrom mm² | b | 1e22 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Square Millimetre (mm²) and square foot (ft²) are units of area. Use this page to convert in either direction.
| Square Millimetre (mm²) | Square Foot (ft²) |
|---|---|
| 1 mm² | 0.0000107639 ft² |
| 5 mm² | 0.0000538196 ft² |
| 10 mm² | 0.000107639 ft² |
| 100 mm² | 0.00107639 ft² |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
ft² to mm² (square foot to square millimetre)