The full load torque of a motor is the maximum torque that the motor can deliver when it is fully loaded. Here is a simple motor torque calculator that can help you calculate the full load torque of a motor.

## Motor torque calculator

Enter the motor rated power | |

Enter the motor rated speed | RPM |

## Result | |

Torque in N.m | N.m |

Torque in lb.in | lb.in |

Torque in lb.ft | lb.ft |

## How to use the motor torque calculator:

The above tool requires the following data for calculation:

- Motor-rated power in HP or kW. (Mandatory)
- Rated speed of the motor. (Mandatory)

The rated power and rated speed of the motor can be found on the nameplate of the motor. After entering the required data, click on the “Calculate” button to find out the full load torque of the motor.

## Motor torque calculation

Calculation of motor torque when it is rated in kilowatts:

Calculation of motor torque when it is rated in horsepower:

Where,

**Torque**Torque in Newton-meter._{N.m}:**P**Power in kilowatts._{kW}:**Torque**Torque in Inch – pounds._{in.lb}:**P**Power in horsepower._{hp}:**Torque**Torque in Feet – pounds._{ft.lb}:

## Full load torque of motors @ 1500rpm

kW | hp | Torque(Nm) | Torque(lb.ft) | Torque(lb.ft) |
---|---|---|---|---|

0.75 | 1 | 4.8 | 42.1 | 3.5 |

1.1 | 1.5 | 7.2 | 63.15 | 5.25 |

1.5 | 2 | 9.6 | 84.2 | 7 |

2.2 | 2.9 | 13.92 | 122.09 | 10.15 |

3 | 4 | 19.2 | 168.4 | 14 |

3.7 | 4.9 | 23.52 | 206.29 | 17.15 |

4 | 5.3 | 25.44 | 223.13 | 18.55 |

5 | 6.6 | 31.68 | 277.86 | 23.1 |

7.5 | 10 | 48 | 421 | 35 |

9.3 | 13 | 62.4 | 547.3 | 45.5 |

10 | 14 | 67.2 | 589.4 | 49 |

11 | 15 | 72 | 631.5 | 52.5 |

15 | 20 | 96 | 842 | 70 |

18 | 24 | 115.2 | 1010.4 | 84 |

22 | 29 | 139.2 | 1220.9 | 101.5 |

30 | 40 | 192 | 1684 | 140 |

37 | 49 | 235.2 | 2062.9 | 171.5 |

45 | 59 | 283.2 | 2483.9 | 206.5 |

55 | 72 | 345.6 | 3031.2 | 252 |

75 | 99 | 475.2 | 4167.9 | 346.5 |

90 | 118 | 566.4 | 4967.8 | 413 |

110 | 144 | 691.2 | 6062.4 | 504 |

130 | 170 | 816 | 7157 | 595 |

150 | 197 | 945.6 | 8293.7 | 689.5 |

175 | 229 | 1099.2 | 9640.9 | 801.5 |

200 | 262 | 1257.6 | 11030.2 | 917 |

225 | 295 | 1416 | 12419.5 | 1032.5 |

250 | 327 | 1569.6 | 13766.7 | 1144.5 |

275 | 360 | 1728 | 15156 | 1260 |

300 | 393 | 1886.4 | 16545.3 | 1375.5 |

350 | 458 | 2198.4 | 19281.8 | 1603 |

400 | 523 | 2510.4 | 22018.3 | 1830.5 |

450 | 589 | 2827.2 | 24796.9 | 2061.5 |

550 | 719 | 3451.2 | 30269.9 | 2516.5 |

600 | 785 | 3768 | 33048.5 | 2747.5 |

## Other calculators:

- Synchronous speed calculator
- Torque-power calculator
- Power-torque calculator
- Torque-speed calculator
- Speed-torque calculator
- Induction motor slip
- Motor torque calculator
- Motor FLC calculator
- Motor Locked rotor current calculator
- Number of poles calculator
- DOL Starter Design tool
- Star-Delta Starter design tool
- HP to kW Converter
- kW to Amps Converter
- Amps to kW converter

Which one is correct the table or the calculator?

55kW drive in table @1500rpm gives 525.2Nm

55kW drive in calculator @1500rpm gives 350Nm

Thanks

Hello Mark, Perhaps you are referring to the wrong value. Anyways, there could be quite a small variation between the calculated value and those in the table.