**Online** tool to **convert from Amp to HP** , with the explanation of the **formula** used in the conversion.

In addition to several **examples** , a **table** of Amp to HP and the **common values** of **efficiency and power factor** for electric motors.

## **Amp to Hp calculation formula, DC, AC, 3 phase, 2 phase, 1 phase:**

**I**_{DC}=Direct current.**I**_{AC1Ø}=Current/Ampere 1 phase.**I**_{AC2Ø}=Current/Ampere 2 phase.**I**_{AC3Ø}=Current/Ampere 3 phase.**H.P=Horsepower.****V**_{DC}=Voltage direct current.**VL-N=Voltage line to neutral.****V**_{L-L}=Voltage line to line._{Ef}=Efficiency.**P.F=Power factor.**

## How to convert Amp to Hp AC 3 phases in only 1 step:

## Step 1:

Multiply the AC voltage by the motor efficiency, the power factor, the current and the square root of 3. For example, if the motor is 220 V ac, it has an efficiency of 80%, the power factor is 0.9 and a correinte of 54.4A, you must Multiply 220 V ac by 0.8 (80%) by 0.9 by √3 (square root of 3) and by 54.4A to obtain 274.35 (220Vacx0.8×0.9x√3×54 .4 = 14.925).

Finally divide step 1 between step 2. For example, (220Vacx0.8 x 0.9x√3×54,4)/(746) = 20 Hp.

## Frequently asked questions and answers.

### How many amps are in 1 HP?

A three-phase 1hp motor, with an efficiency of 85%, a voltage of 220Vac and a power factor of 0.85, has an amperage of 2.71 Amp.

### How many amps does a 1.5 hp motor?

A three-phase 1,5hp motor, with an efficiency of 85%, a voltage of 220Vac and a power factor of 0.85, has an amperage of 4,06 Amp.

**Amp to Hp conversion chart-table:**

Amp AC | Phases | Efic. | Volt. | Pf | Hp |

1A | 3P | 78% | 208V | 0,84 | 0,31Hp |

2A | 3P | 78% | 208V | 0,84 | 0,63Hp |

3A | 3P | 78% | 208V | 0,84 | 0,94Hp |

4A | 3P | 78% | 208V | 0,84 | 1,26Hp |

5A | 3P | 84% | 208V | 0,84 | 1,7Hp |

6A | 3P | 84% | 208V | 0,86 | 2,09Hp |

7A | 3P | 84% | 208V | 0,86 | 2,44Hp |

8A | 3P | 84% | 208V | 0,86 | 2,79Hp |

9A | 3P | 84% | 208V | 0,86 | 3,13Hp |

10A | 3P | 85% | 208V | 0,86 | 3,53Hp |

20A | 3P | 85% | 220V | 0,86 | 7,46Hp |

30A | 3P | 88% | 220V | 0,89 | 12Hp |

40A | 3P | 88% | 220V | 0,89 | 16Hp |

50A | 3P | 88% | 220V | 0,89 | 20Hp |

60A | 3P | 90% | 220V | 0,89 | 24,5Hp |

70A | 3P | 90% | 220V | 0,89 | 28,64Hp |

80A | 3P | 90% | 220V | 0,89 | 32,73Hp |

90A | 3P | 90% | 220V | 0,89 | 36,82Hp |

100A | 3P | 90% | 220V | 0,89 | 40,91Hp |

200A | 3P | 91% | 440V | 0,91 | 169,19Hp |

300A | 3P | 92% | 440V | 0,91 | 256,5Hp |

400A | 3P | 92% | 440V | 0,91 | 342,1Hp |

500A | 3P | 92% | 440V | 0,91 | 427,63Hp |

600A | 3P | 92% | 440V | 0,91 | 513,16Hp |

700A | 3P | 92% | 440V | 0,91 | 598,68Hp |

800A | 3P | 92% | 440V | 0,91 | 684,216Hp |

900A | 3P | 92% | 440V | 0,91 | 769,74Hp |

1000A | 3P | 92% | 480V | 0,91 | 933,02Hp |

1100A | 3P | 92% | 480V | 0,91 | 1026,32Hp |

1200A | 3P | 92% | 480V | 0,91 | 1119,62Hp |

1300A | 3P | 92% | 480V | 0,91 | 1212,9Hp |

1400A | 3P | 92% | 480V | 0,91 | 1306,23Hp |

1500A | 3P | 92% | 480V | 0,91 | 1399,53Hp |

1600A | 3P | 92% | 480V | 0,91 | 1492,8Hp |

1700A | 3P | 92% | 480V | 0,91 | 1586,13Hp |

1800A | 3P | 92% | 480V | 0,91 | 1679,4Hp |

1900A | 3P | 92% | 480V | 0,91 | 1772,7Hp |

2000A | 3P | 92% | 480V | 0,91 | 1866Hp |

2100A | 3P | 92% | 480V | 0,91 | 1959,3Hp |

2200A | 3P | 92% | 480V | 0,91 | 2052,6Hp |

2300A | 3P | 92% | 480V | 0,91 | 2145,95Hp |