Hp to amps calculator is a easiest tool to convert hoarse power into current as amps. This calculation is based on voltage, efficiency and connection type. Enter the values and click calculate button to get results.
HP to Amps Calculator
What is Hoarse Power?
Hoarse power is defined as the mechanical power measured for Motors and engines. This is commonly denoted as "hp". 1 hp is around 746 watts.
hp to Amps Conversion Table
| HP | Single Phase (230V) | Three Phase (415V) |
|---|---|---|
| 1 | 4.5 A | 1.8 A |
| 2 | 9 A | 3.5 A |
| 3 | 13.5 A | 5.3 A |
| 5 | 22.5 A | 8.8 A |
| 7.5 | 34 A | 13 A |
| 10 | 45 A | 17.5 A |
| 15 | 67 A | 26 A |
| 20 | 90 A | 35 A |
| 25 | 112 A | 44 A |
| 30 | 135 A | 52 A |
| 40 | 180 A | 70 A |
| 50 | 225 A | 88 A |
Hp to Amps Calculation Formula
The HP is known as hoarse power, commonly the power of a Motor is represented on hp,. To calculate the current of motor drawing during in its working condition is calculated using formulas. The single phase and three phase motor has different formula to calculate.
DC Motor Hp to Amps Conversion Formula
I = HP x 746 / V x Eff
Sigle Phase Motor hp to amps formula
I = HP x 746 / V x Eff x PF
Three Phase Motor Amps Formula
I = HP x 746 / 1.732 x V x Eff x PF
- I = current in Amps
- HP is hoarse Power
- V is Voltage
- Eff is efficiency and commonly using a 0.9
- PF is Power factor and its is about 0.8
Example calculation for 5HP Motor
- HP = 5
- Voltage (V) = 230 V
- Efficiency (Eff) = 0.9
- Power Factor (PF) = 0.8
If the motor is single phase then the Ampere will be calculated using single phase motor amps calculations of,
Single Phase Calculation
I = HP x 746 / V x Eff x PF
I = 5 x 746 / 230 x 0.9 x 0.8
I = 4.50 A
For 3 phase 5Hp motor amps calculated by,
3 Phase Calculation
I = HP x 746 /1.732 x V x Eff x PF
I = 5 x 746/ 1.732 x 230 x 0.9 x 0.8
I = 13 Amps
DC Connection Type Calculation
I = HP x 746 / V x Eff
I = 5 x 746 / 230 x 0.9
I = 18.02
