1. What is the Watts To Amps Calculation?

The formula I = 1 / V calculates electrical current in amps from 1 watt of power, assuming single phase DC or AC with power factor equal to 1. This provides a basic conversion between power and current.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( I \) — Current in amps
• \( V \) — Voltage in volts

Explanation: This formula calculates the current required to produce 1 watt of power at the given voltage level.

3. Importance of Current Calculation

Details: Accurate current calculation is essential for circuit design, wire sizing, fuse selection, and ensuring electrical safety in various applications.

4. Using the Calculator

Tips: Enter voltage in volts. The value must be valid (voltage > 0). The calculator assumes 1 watt power and single phase DC or AC with power factor = 1.

5. Frequently Asked Questions (FAQ)

Q1: Why is this calculation limited to 1 watt?
A: This specific calculator is designed for 1 watt conversion. For other power levels, use the general formula I = P / V.

Q2: What if I have AC power with different power factor?
A: This calculator assumes power factor = 1. For other power factors, use I = P / (V × PF).

Q3: Can this be used for three-phase systems?
A: No, this calculator is for single phase systems only. Three-phase calculations require different formulas.

Q4: What are typical current values for common voltages?
A: For 120V: ~0.0083A, for 240V: ~0.0042A, for 12V: ~0.0833A (all for 1 watt).

Q5: Why is this calculation important?
A: It helps determine the current draw of low-power devices and is fundamental for electrical circuit analysis and design.