Calculators
Electrical calculators
Choose electrical calculators for preliminary electrical and field-work checks.
Calculator workflows
Start with common field checks, then open the complete topic list.
wire and voltage drop
Voltage drop calculator
Estimate voltage drop for Canadian single-phase, three-phase, and DC circuits using local voltage presets and conductor size labels.
wire and raceway fill
Conduit fill calculator
Estimate conduit fill from raceway inside diameter, conductor outside diameters, conductor counts, and a selected fill target.
power systems
Load list kVA and amps calculator
Build a multi-row load list and estimate total kW, kVA, and equivalent line current for Canadian voltage systems.
power systems
kW, kVA, and amps calculator
Solve kW, kVA, or line current from one known value using Canadian voltage presets, phase, and power factor.
transformers
Transformer kVA sizing calculator
Aggregate load rows, demand factors, and margin to screen the next standard transformer kVA rating.
ev and storage
EV charging time calculator
Estimate EV charging time from battery size, start and target state of charge, charger kW, and charging efficiency.
Browse all calculators by topic
wire and raceway fill
wire and raceway layout
cable tray and logistics
power systems
voltage systems
motors
power quality
transformers
generators
ev and storage
solar pv
heating and hvac
wire and voltage drop
protection and fault current
lighting
grounding and testing
Calculator outputs are estimates for review. They do not approve conductor ampacity, breaker size, service size, or installation compliance.