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Horse power (more correctly brake horse power, usually abbreviated to "bhp") is a measure of how fast energy is being used. This is a different concept from amps, which measure electric current, i.e. the "rate" at which electricity flows: to know how much power is being used by an electrical device (light bulb, refrigerator, etc) you need to know the Voltage (220 or 240 V in most parts of the world, but 110 or 115 in some) and multiply this by the current in amps. This gives you the power (in watts, which is the "metric" way of measuring power, as opposed to the British and American way). It is simple to convert watts to bhp (or vice versa), as 1 bhp = 746 Watts (or 0.746 Kw).

Example 1. Your car engine is capable of generating 200 bhp. You could also describe this as being capable of generating 149 Kw (200 x 0.746), and many foreign car manufacturers use this rather than bhp.

Example 2. Suppose you live in a country where the voltage is 240 V, and you have an electric heater which draws 10 amps. Your heater is consuming power (energy) at the rate of 240 x 10 = 2400 watts (i.e. 2.4 Kw). This is 2.4 / 0.746 = 3.2 bhp (but you would be thought very odd to rate an electric heater in this way - the whole world uses the metric system for this!)

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15y ago

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Amps are not directly convertible to horse power, which is a measure of power. Power is current times voltage. Therefore on a 240 v supply, 5.2 amps equals 1248 watts. One horse power is 746 watts.

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10y ago
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Can't be done just like that.

But if you have amps AND volts, then you can get watts. And 735 W is one hp.

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Wiki User

14y ago
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It doesn't make sense to convert units of power, to units of current.

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Wiki User

10y ago
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15

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Anonymous

4y ago
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Q: How to Calculate horsepower from amps?
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How do you convert horsepower into amps?

You don't. The units measure different things.


How do you calculate bollard pull from horsepower?

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How can a 110 volt table saw be rated 4 horsepower at 15 amps?

it cant someone in marketing is lying Regarding any electrical equipment, especially motors, 746 watts or volt-amps is 1 horsepower. If your table saw is rated 4 horsepower, that would be 2984 volt-amps and at 110 volts that calculates to 27 amps. The above answer is correct. At 110 volts you cannot run a 4 horsepower motor on a 15 amp circuit. <<>> The above theoretical answer is correct however you should allow extra for efficiency less than 100% and a power factor less than 1, so the current requirement should be increased by 25% to 34 amps. <<>>The rule of thumb for motors at 240 v is 7 amps per HP, which would be 28 amps for 4 HP, but because the voltage is less the current must be more, 28x240/110 which is 61 amps.


What horsepower os 5.1 amps?

Amps are not directly convertible to horse power, which is a measure of power. Power is current times voltage. Therefore on a 240 v supply, 5.1 amps equals 1224 watts. One horse power is 746 watts.


What is Full Load Amps?

FLA is the nameplate amperage rating of the motor when it is running at its designed horsepower and on the motors designed voltage. 746 watts = 1 HP. The FLA of a 1 HP motor at 240 volts would be W = amps x volts, Amps = Watts/Voltage. 746/240 = 3.1 amps full load. Overload the motor and the amps go higher, motor running at no load amps are lower than FLA