Engineering resources
Calculations
Practical electrical engineering calculators for common design and application checks.
Motor Current
Estimate single-phase or three-phase motor line current from mechanical output power, voltage, power factor, and efficiency.
Open calculator 02Transformer Current
Calculate transformer full-load current from kVA rating, voltage, and phase.
Open calculator 03AC Power Triangle
Solve practical relationships among kW, kvar, kVA, power factor, voltage, and current.
Open calculator 04Power Factor Correction
Estimate the theoretical capacitor kvar required to improve a load power factor.
Open calculator 05Ohm’s Law & Basic Power
Calculate voltage, current, resistance, and DC or resistive power from two known values.
Open calculator 06Engineering Unit Converter
Convert common electrical, mechanical, HVAC, pressure, length, and mass units.
Open calculatorThese calculators are intended for engineering estimation and application checks. Final equipment selection and design should be verified against applicable codes, standards, manufacturer data, and project-specific requirements.