Basically you can't, as the effort(the watts)needed to reach and maintain a certain speed depends on the riding conditions.
With a bit of a tailwind you might reach and maintain25 MPH/40 KMH easily oneday (=low power).
The next day, maybe there's a headwind instead, and you'll have to struggle like crazy(=high power)only to make 20 MPH/32 KMH.
To convert watts to kilowatts, the watts are divided by1000.
Divide by one thousand.
Watts x 0.001 = kilowatts (kW)
multiply by 1000.
1kp = 50 W
You can't convert from Joules to Watts because Joules is a measure of total energy, and Watts measure energy per second.
1100 watts = 1.1 kilowatts. Generally, "kilo" is the standard prefix meaning multiply with 1000.
13,500 kph
The conversion factor is 1.6 kilometers for each 1 mile.
100 kph = 62.1 mph
299 KPH = 185.80 MPH
to convert watts into meters
convert arms to watts
Multiply by 1.609344
4,828 kph = about 3,000 miles per hour
Use this formula:m/sec x 3.6 = kph
It the unit is watts, megawatts is millions of watts, so to convert watts to megawatts, multiply the number of watts be 1,000,000.
kW x 1,000 = watts
Watts x 0.001341 = hp
1 hp = 745.699872 watts
Watts are the product of amps x volts.
miles... in kph??? Anyway, the speed of light is 300,000 kilometers/second; you can convert that to whatever unit you want. For example, to convert to kilometers/hour, multiply by 3600.