Q:

How many watts equal 1 horsepower?

A:

Quick Answer

The question of how many watts equal 1 horsepower depends on how you define horsepower. One mechanical horsepower unit is approximately equal to 745.7 watts. One electrical horsepower, used for rating electrical motors, is equal to 746 watts.

Continue Reading

Full Answer

Horse power was originally defined as the power output of a single common draft animal. One horse could sustain the work of 1 horsepower. As steam engines began to supplant horses during the Industrial Revolution, the unit "horsepower" came in to use to define the power output of mechanical and then electrical engines. James Watt, an inventor of the late 18th and early 19th century, originally developed the horsepower unit; in 1882, the SI unit of power was named the watt in his honor.

Learn more about Measurements

Related Questions

  • Q:

    How do you convert watts to KWh?

    A:

    To convert between watts to kilowatt-hours, first convert to kilowatts by dividing by 1,000, then multiply by the number of hours that the device is in use. For example, a 60-watt bulb that is on for five hours uses 0.06 kW per hour, for a total of 0.3 kWh.

    Full Answer >
    Filed Under:
  • Q:

    What is the formula for converting watts to amps?

    A:

    The simplest conversion formula to convert watts to amps is based on the formula for amps, which is power (in Watts) divided by Volts. This is written as I(Amps) = P(Watts) / V(Volts). By simply rearranging this formula, it is easy to convert amps to watts and vice versa.

    Full Answer >
    Filed Under:
  • Q:

    How do you convert watts to lumens?

    A:

    To convert watts to lumens, first find out the efficacy rating, which is in lumens per watt. The formula for this conversion is lumens = watts x (lumens per watt).

    Full Answer >
    Filed Under:
  • Q:

    How many watts are in 60 Hz?

    A:

    It is impossible to convert watts to hertz, as the units measure different things. Watts measure how much power is being used, whereas hertz measure frequency – the amount of time required to complete a cycle. In alternating current, electricity reverses direction, and these cycles are measured in hertz.

    Full Answer >
    Filed Under:

Explore