81 Square Kilometer = 31.274131 Square Mile
81 km² = 31.274131 mi²
Conversion Formula
1 km² = 0.38610039 mi²
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Capacitance
7 Abfarad
7.000e+9 Farad
abF → F
Viscosity
62 Pound per foot second
92.26592 Pascal Second
lb/(ft·s) → Pa·s
Density
2 Pound per gallon us
239.652 Kilogram per Cubic Meter
lb/gal(US) → kg/m³
Electric field
10 Kilovolt per centimeter
1.000e+6 Volt per Meter
kV/cm → V/m
Photography
13 Candela per square meter
3.79418 Foot lambert
cd/m² → fL
Temperature
65 Celsius
149 Fahrenheit
°C → °F