Brushless Motor Power Calculator

How to Use the Calculator

1. Enter the voltage (V) of your brushless motor in volts.
2. Enter the current (A) the motor draws in amperes.
3. Enter the efficiency (%) of the motor (typically between 80-95% for most brushless motors).
4. Click the "Calculate" button to compute the power in watts.
5. The result will be displayed in the Power (W) field.

Working Principle

The power of a brushless motor is calculated using the formula: P = V × I × Efficiency

Where:
- P is the power in watts
- V is the voltage in volts
- I is the current in amperes
- Efficiency is the motor's efficiency as a percentage

Applications

This calculator can be used by electricians, engineers, and hobbyists to:

• Design and size power systems for brushless motors
• Choose appropriate batteries and power supplies
• Estimate energy consumption and heat generation
• Compare different motor models

Example

If you have a brushless motor that operates at 12V and draws 5A with 90% efficiency, the power can be calculated as:

P = 12V × 5A × 0.9 = 54W