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Speed
91 Kilometer per second
203,561.20 Mile per Hour
km/s → mph
Area
64 Square Yard
53.512128 Square Meter
yd² → m²
Electric current
9 Biot
90 Ampere
Bi → A
Frequency
11 Revolution per Minute
0.1833337 Hertz
rpm → Hz
Concentration
65 Parts per Billion
65 Microgram per liter
ppb → μg/L
Volume
91 Liter
24.039668 Gallon (US)
l → gal (US)