Convertitore di Potenza

# 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)