square mile mi²
640 acres. US county/area units.
Quick convert — square mile to popular units
Live converter, three directions. Type any value to update all three.
square mile
square metre
1 mi² = 2,589,988.1103m²
square mile
square kilometre
1 mi² = 2.59km²
square mile
square centimetre
1 mi² = 25,899,881,103.36cm²
Conversion table — square mile to every Area unit
All values for 1 mi² (forward) and 1 reverse unit → {symbol}.
| To / From | 1 mi² = | 1 to-unit = |
|---|---|---|
| square metre (m²) | 2,589,988.110336 m² | 3.861022e-7 mi² |
| square kilometre (km²) | 2.58998811 km² | 0.38610216 mi² |
| square centimetre (cm²) | 25,899,881,103.36 cm² | 3.861022e-11 mi² |
| hectare (ha) | 258.99881103 ha | 0.00386102 mi² |
| square foot (ft²) | 27,878,400 ft² | 3.587006e-8 mi² |
| square inch (in²) | 4,014,489,600.0000005 in² | 2.490977e-10 mi² |
| acre (ac) | 640 ac | 0.0015625 mi² |
| square yard (yd²) | 3,097,600 yd² | 3.228306e-7 mi² |
Frequently Asked Questions
What does mi² stand for?
square mile (mi²) is a unit of Area.
How many mi² are in 1 m²?
1 m² = 2,589,988.110336 mi², so 1 mi² = 3.8610e-7 m².
Is this the SI base unit?
No. square mile is one of several units in the Area category. The SI base is m².
Common conversions from square mile
#1
square mile (mi²) → square meter (m²)
Convert square mile (mi²) to square meter.
#2square mile (mi²) → square kilometer (km²)
Convert square mile (mi²) to square kilometer.
#3square mile (mi²) → square centimeter (cm²)
Convert square mile (mi²) to square centimeter.
#4square mile (mi²) → hectare (ha)
Convert square mile (mi²) to hectare.
#5square mile (mi²) → square foot (ft²)
Convert square mile (mi²) to square foot.
#6square mile (mi²) → square inch (in²)
Convert square mile (mi²) to square inch.
#7square mile (mi²) → acre (ac)
Convert square mile (mi²) to acre.
#8square mile (mi²) → square yard (yd²)
Convert square mile (mi²) to square yard.