66 Btu per hour = 19.342686 Watt
66 BTU/h = 19.342686 W
Conversion Formula
1 BTU/h = 0.293071 W
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Photography
4 Millimeter focal
0.15748031 Inch focal
mm → in
Electric voltage
5 Microvolt
0.005 Millivolt
μV → mV
Surface tension
47 Pound force per foot
685.9133 Newton per Meter
lbf/ft → N/m
Electric field
60 Statvolt per centimeter
1.799e+6 Volt per Meter
statV/cm → V/m
Pressure
24 PSI
1.654742 Bar
psi → bar
Length
79 Astronomical unit
1.182e+10 Kilometer
AU → km