Power Calculators
Convert between watts, amps, and volts. Calculate power consumption and energy costs instantly with our free tools.
Watts to Amps
Amps to Watts
Kilowatts to Watts
Watts to Kilowatts
Energy Cost Calculator
Circuit Capacity
How to Use These Calculators
Watts to Amps
Convert watts to amps using the formula: Amps = Watts ÷ Volts. Essential for determining circuit requirements and ensuring you don't overload breakers.
Energy Cost
Calculate how much an appliance costs to run per day, month, or year. Enter the wattage, hours of daily use, and your electricity rate to see actual costs.
Circuit Capacity
Determine the maximum wattage your circuit can handle. Remember to follow the 80% rule for continuous loads (devices that run 3+ hours).