# Motor Hp (Horse Power) Calculator DC, Single Phase & Three phase

### Hp to volts Conversion Calculator:

Enter the horse power, current in amps, power factor between 0 to 1. By pressing the calculate button you can get the voltage values in Volts. You can choose DC, AC or AC single phase, AC three phase or Line to line and line to phase voltage for calculating.

 Select current type: DCAC – Single phaseAC – Three phase Enter power in HP: HP Enter Current in Amps: A Voltage result in Volts: V

### Hp to volts Calculation:

HP is the short form of horsepower. For converting HP to volts we have three sets of the formula for DC, AC single-phase and AC three-phase.

### Hp to DC volts calculation:

DC voltages V(V) in volts is equal to 746 times of horsepower P(HP)­ in HP divided by current in I(A) in Amps. The DC volts formula will be

V(V) = 746 x P(HP) / I(A) volts

Note: The voltage V(V) can be measured between the positive to the negative terminal

Example:

A 1 HP DC motor has 1.7 Amps current flow, calculate the voltage across the positive and negative terminal.

DC Voltage = 746 x 1 / 1.7 = 438 Volts.

### Hp to AC single phase volts calculation:

AC Line to the neutral voltage V(V) in volts is equal to 746 times of horsepower P(HP) in HP divided by the multiplication of power factor and circulating current I(A) in Amps.

The phase to neutral voltage V(V) = 746 x P(HP) / pf x I(A) in Volts

Note: The AC voltage V(V) can be measured between the Phase to the neutral terminal

Example:

A 10 HP AC single phase motor has 39 Amps current flow with 0.86 power factor, calculate the voltage across the phase to neutral terminal.

AC Voltage = 746*10 / (39*0.86) = 222.4 Volts.

### HP to Three phase volts calculation:

AC three phase voltage V(V) in volts is equal to 746 times of the total power P(HP) divided by three times of the multiplication of power factor and circulating current I(A) in Amps.

The Line to neutral voltage V(V) = 746 x P(HP) / (3 x I(A) x pf) in Volts

Note: The AC three phase voltage V(V) can be measured between the Phase to neutral terminal

At the same time Line to line voltage V(V) is equal to 746 times of the power P(HP) in HP divided by root three times of the current I(A) in Amps

The Line to Line Voltage V(V) = 746 x P(HP) / (√3 x pf x I(A)) in Volts

Note: The AC voltage V(V) can be measured between the Phase to Phase terminal

Example:

A 10 HP AC three phase motor has 0.85 power factor, 12 Amps current flow, calculate the voltage across the phase to phase terminal.

AC three phase Voltage =746*10 / (1.732*12*0.85) = 422.27 Volts