Power Formula:
From: | To: |
Definition: This calculator converts electrical current (amperes) to power (watts) using the voltage.
Purpose: It helps electricians, engineers, and DIY enthusiasts determine the power consumption of electrical devices.
The calculator uses the formula:
Where:
Explanation: The current (amps) is multiplied by the voltage to calculate the power consumption in watts.
Details: Proper power calculation ensures electrical circuits are not overloaded, helps select appropriate wiring and circuit breakers, and estimates energy consumption.
Tips: Enter the current in amps and voltage in volts (default 120V for standard US household current). All values must be > 0.
Q1: What's the difference between amps and watts?
A: Amps measure current flow, while watts measure power (rate of energy consumption).
Q2: What voltage should I use?
A: Standard household voltages are 120V (US) or 230V (Europe). Check your device specifications.
Q3: Does this work for DC and AC circuits?
A: Yes, for simple DC circuits and AC circuits with resistive loads. For reactive loads, power factor must be considered.
Q4: How do I find the current (amps) of a device?
A: Check the device label or specifications, or use a multimeter to measure current.
Q5: What if I know watts but need amps?
A: Use our Watts to Amps Calculator tool with the formula \( I = \frac{P}{V} \).