Enter both values to calculate watts
Volts (V)
Common:
Amps (A)
Watts (W)
Result will appear here
Understanding the Relationship
The relationship between watts, volts, and amps follows the Power Formula:
- Power (P) = Voltage (V) × Current (I)
- Voltage (V) = Power (P) ÷ Current (I)
- Current (I) = Power (P) ÷ Voltage (V)
In Solar Systems
Understanding these relationships helps you:
- Size your wiring - Higher amps need thicker wires
- Choose inverters - Match wattage to your needs
- Configure battery banks - 12V, 24V, or 48V systems affect current flow
- Calculate loads - Know how much power your devices draw
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