A
ElectricalPower and current
Estimate current from kW or kVA for single-phase and balanced three-phase systems, with the substituted formula shown.
kW / kVA1Φ / 3ΦFormula shown
Open calculatorFree tools
MEP calculators
Small, transparent calculation aids for regular project tasks. Each tool shows the formula or method being used and states what it does not check.
ΔV
ElectricalVoltage drop
Calculate voltage drop from the mV/A/m value you select, including upstream allowance and maximum route length within the chosen budget.
mV/A/m3% / 5% presetsMax length
Open calculatorEngineering use: These calculators are aids for checking and planning. They do not replace project-specific engineering judgement, current standards, manufacturer information or verification of the complete design.