Electric Tools
Electrical calculators for kVA to kW, amps to watts, power, cost, and runtime checks
Electric Tools is a growing collection of electrical calculators and conversion tools designed for quick reference, basic estimation, and practical everyday use. Popular tools include a kVA to kW calculator, a kW to HP converter, and a 3 phase power calculator.
What you can do here
Estimate single-phase and 3 phase power
Use power calculation tools for quick checks involving voltage, current, and power factor, including balanced three-phase loads.
Convert amps to watts
Use the Amps to Watts Calculator to estimate watts from amps, voltage, and current type.
Estimate cost and runtime
Check rough electricity cost or battery runtime using simple input values.
Convert kW to HP and HP to kW
Convert between power-related units such as kilowatts and horsepower for motor and machinery nameplate checks.
Convert kVA to kW
Use the kVA to kW Calculator to estimate real power from apparent power and power factor.
Featured calculators
- Power CalculatorCalculate electrical power using voltage, current, and power factor.
- Amps to Watts CalculatorConvert amps to watts using voltage and current type for DC, single-phase, and three-phase loads.
- 3 Phase Power CalculatorEstimate three-phase electrical power from voltage, current, and power factor.
- kVA to kW CalculatorConvert apparent power in kVA to real power in kW using power factor.
Popular tools
kVA to kW calculator
Use the kVA to kW Calculator to convert apparent power into estimated real power.
kW to HP converter
Use the kW to HP Converter for quick horsepower conversion and common motor rating comparisons.
3 phase power calculator
Use the 3 Phase Power Calculator to estimate real power from line voltage, current, and power factor.
Amps to watts calculator
Use the Amps to Watts Calculator for fast watt estimates in DC, single-phase, and three-phase setups.
Browse all tools
Visit the full calculator hub to explore all available electrical calculators and converters by purpose.
Quick note
These tools are intended for quick estimation and general reference. They are useful for fast checks, but they are not a replacement for full engineering review, code compliance, or manufacturer data.