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⚡ Electrical Power Calculator
DC Power
AC Power
Energy Cost
DC Power Calculator
P = V × I = V² ÷ R = I² × R
Voltage (Volts)
Current (Amperes)
Resistance (Ohms)
Calculate DC Power
24.0
Watts
DC Power Analysis
AC Power Calculator
P = V × I × cos(φ) × PF
Voltage (Volts RMS)
Current (Amperes RMS)
Power Factor
Frequency (Hz)
50 Hz (Europe)
60 Hz (North America)
Calculate AC Power
480.0
Watts (Real Power)
AC Power Analysis
Energy Cost Calculator
Cost = Power × Time × Rate
Power Consumption (Watts)
Usage Time (hours per day)
Electricity Rate ($/kWh)
Billing Period (days)
Calculate Energy Cost
28.80
monthly cost ($)
Energy Analysis