Power Converter
Convert between watts, kilowatts, megawatts, horsepower, and BTU/hr.
About this tool
Power conversion is essential in engineering, electronics, and energy management. Whether you're designing electrical systems, comparing energy efficiency ratings, or calculating motor specifications, you need reliable conversions between watts, kilowatts, megawatts, horsepower, and BTU per hour. This Power Converter tool handles all these units instantly, eliminating manual calculations and reducing the risk of costly errors in technical projects.
Simply select your starting unit from the dropdown menu, enter the numerical value, and the converter displays equivalent measurements in all other power units. The tool updates in real time as you type, making it easy to explore relationships between different power standards. For example, you can instantly see that 1 kilowatt equals 1.34 horsepower, or that a 5 megawatt wind turbine produces approximately 17 million BTU per hour.
Engineers, electricians, HVAC technicians, and energy analysts rely on this converter daily. It's also useful for anyone comparing appliance specifications across different countries or industries, where power is expressed in varying units. The tool works entirely in your browser with no login requiredβjust visit, convert, and go.
Frequently Asked Questions
Code Implementation
# Power conversions in Python
def watts_to_horsepower(w):
"""Mechanical horsepower (US): 1 HP = 745.7 W"""
return w / 745.7
def horsepower_to_watts(hp):
return hp * 745.7
def watts_to_metric_hp(w):
"""Metric horsepower (PS): 1 PS = 735.5 W"""
return w / 735.499
def kw_to_btu_per_hour(kw):
"""1 kW = 3412.14 BTU/h"""
return kw * 3412.14
def btu_per_hour_to_watts(btu_h):
return btu_h * 0.29307
# Examples
print(watts_to_horsepower(1000)) # 1.341 HP
print(horsepower_to_watts(100)) # 74570 W (74.57 kW)
print(watts_to_metric_hp(1000)) # 1.360 PS
print(kw_to_btu_per_hour(3.5)) # 11942 BTU/h (typical AC)Comments & Feedback
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