iPhone & Smartphone version
Mass
Length
Temperature
Area
Volume
Energy
Power
Electric charge
Pressure
Time
Storage
Numbers
Speed
Acceleration
Angle
Density
Fuel economy
STEP 1
Please select your starting area unit.
You will find a list of the area unit below. Simply click on one of these units and follow on-screen instructions.
metric units
square kilometer (km
2
)
square hectometer (hm
2
)
square decameter (dam
2
)
square meter (m
2
)
square decimeter (dm
2
)
square centimeter (cm
2
)
square millimeter (mm
2
)
ares and derivates
hectare (ha)
are (a)
centiare (ca)
imperial units
square mile (mi
2
)
acre (acre)
rood (ro)
square yard (sq yd)
square foot (sq ft)
square inch (sq in)
modern Chinese units
lí (lí)
fen (fen)
mu (mu)
shí (shí)
qing (qing)
Greek alphabet
Please counter-check the results. Despite thorough controls by our means, rounding errors and other errors are possible. Use at your own risk.
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