To help compare different orders of magnitude this page lists areas up to 10-29 m² (up to 10 square femtometres). See also areas of other orders of magnitude.
| Orders of magnitude for area |
| 1 E-30 m² = 1 fm² |
1 E-24 m² = 1 pm² |
1 E-18 m² = 1 nm² |
1 E-12 m² = 1 µm² |
1 E-6 m² = 1 mm² |
1 E0 m² = 1 m² |
1 E+6 m² = 1 km² |
1 E+12 m² = 1 Mm² |
1 E+18-24 m² : 1 Gm² |
| 10 fm² |
10 pm² |
10 nm² |
10 µm² |
10 mm² |
10 m² |
10 km² |
10 Mm² |
> 1 E+24 m² : 1 Tm² |
| 100 fm² |
100 pm² |
100 nm² |
100 µm² |
100 mm² = 1 cm² |
100 m² = 1 a |
100 km² |
100 Mm² |
|
| 1,000 fm² |
1,000 pm² |
1,000 nm² |
1,000 µm² |
10 cm² |
10 a |
1,000 km² |
1,000 Mm² |
|
| 10,000 fm² |
10,000 pm² |
10,000 nm² |
10,000 µm² |
100 cm² |
10,000 m² = 1 ha |
10,000 km² |
10,000 Mm² |
|
| 100,000 fm² |
100,000 pm² |
100,000 nm² |
100,000 µm² |
1,000 cm² |
10 ha |
100,000 km² |
100,000 Mm² |
|
| SI derived unit square metre, from base unit metre |
Conversion of units for area |
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