1 hp equals 746 Watts. You do the math.
Update:
There are a few different conversion rates for horsepower (metric, electric, etc), but approximately 1 watt = 0.0134 horsepower.
Therefore 2500W = approx 3.35 horsepower, or 3.4 using metric horsepower.
For future conversion questions use http://www.onlineconversion.com/ (not a plug, actually a useful site)
KW = (250 hp x 746 w) / 1000 = 186.5 KW
Remember that 250 HP is the output power so in order to determine the input power you need to know the efficiency (eff)
Input = output / eff
Example with eff = 90%:
Input Power = 186.5 / .90 = 207 KW input.
1,500 watts is equal to 2.01 horsepower.
746 watts equals one horsepower.
One HP equals 746 watts. So 4 HP = 2984 watts.
1500 watts
1000 watts = 1 kilowatt 1500 watts = 1.5 kilowatts
A total of 1200 watts is equal to 1200/746 = 1.6 horsepower.
746 watts equals one horsepower.
1.2 hp = 894.839846 watts
One HP equals 746 watts. So 4 HP = 2984 watts.
The number to use for calculation purposes is 746 watts equals one horsepower.
0.5 horsepower how many watts
1500 watts
746 watts.
11,000 watts equates to 14.745 electric horsepower.
1000 watts = 1 kilowatt 1500 watts = 1.5 kilowatts
78 watts is 0.1046hp
A total of 1200 watts is equal to 1200/746 = 1.6 horsepower.
A horsepower is equal to 746 watts, so 10 x 746 = 7,460 watts.