Electrical
Wire gauge selectors, circuit load calculators, conduit fill tools and voltage drop estimators for LV electrical installation design.
Available now
Voltage Drop Calculator
Calculate voltage drop percentage for single-phase and three-phase circuits over given cable lengths and loads.
Open Calculator →● LiveCircuit Load Calculator
Calculate total circuit load, diversity factors and breaker sizing for multiple connected loads.
Open Calculator →● LiveHome Electrical Material Estimator
Estimate residential electrical material categories, cable length buckets, circuit groups, floor sub-panels, panel module needs and electrician discussion notes.
Open Calculator →● LiveIndustrial Electrical Material Estimator
Planning-level material buckets for industrial installations — three-phase cable quantities, sub-distribution boards, cable tray/busway containment, motor circuits and earthing/bonding.
Open Calculator →● LiveCable Ampacity Calculator
Calculate derated cable ampacity per NEC 310.15 / IEC 60364-5-52. Build a circuit list with AWG or mm² conductors, select temperature rating, ambient temperature and conduit fill — get final derated ampacity and recommended breaker size.
Open Calculator →● LivekVA / kW / Amps Converter
Convert between apparent power (kVA), real power (kW), current (A) and voltage for single-phase and three-phase systems, with power factor.
Open Calculator →● LiveFuse & Breaker Sizing
Check gG fuse or MCB coordination with the conductor per IEC 60364-4-43 — IB ≤ In ≤ IZ and I₂ ≤ 1.45·IZ.
Open Calculator →Coming soon
Wire Gauge Selector
Select correct AWG or mm² wire size based on load current, voltage, run length and insulation rating to NEC/IEC standards.