Electricity and Energy Conversions

Technical directory for electrical and energy calculations. Convert power, battery capacities, HVAC metrics, and electric vehicle efficiency.


Basic Concepts and Power

Watts (W) to Amps (A)
Amps (A) to Watts (W)
Kilowatts (kW) to Metric Horsepower (PS/CV)
Metric Horsepower (PS/CV) to Kilowatts (kW)
Kilowatts (kW) to HP (Horsepower)
HP to Kilowatts (kW)

Batteries and Solar Energy

Milliampere-hours (mAh) to Watt-hours (Wh)
Watt-hours (Wh) to Milliampere-hours (mAh)
Ampere-hours (Ah) to Kilowatt-hours (kWh)
Solar Panel Calculator (Consumption to Panels)

Electric Mobility (EV)

Electric Vehicle Charging Time
Convert EV Consumption (kWh/100km to km/kWh)
Charging Cost (Battery vs. Electricity Rate)

HVAC and Thermal

BTU to Frigories (Cooling Units)
Frigories to BTU
Frigories to Watts (W)
Watts (W) to Frigories