Wire & Cable
Professional wire sizing and cable calculators for NEC-compliant electrical installations. Calculate conductor ampacity, conduit fill, voltage drop, and wire sizing with industry-standard accuracy for safe and efficient electrical system design.
Featured Wire & Cable Calculators
All Wire & Cable Calculators
wire size
Determine proper wire size based on ampacity and voltage drop requirements
ampacity calculator
Calculate conductor current capacity with NEC correction factors
conduit fill
Professional conduit fill for electrical engineering applications
cable ampacity
Professional cable ampacity for electrical engineering applications
wire gauge converter
Professional wire gauge converter for electrical engineering applications
About Wire & Cable
Wire and cable sizing is critical for electrical safety and system performance. Our comprehensive calculator collection covers NEC-compliant wire sizing, ampacity calculations with derating factors, conduit fill analysis, and conductor selection. These tools are essential for electrical contractors, engineers, and designers working on power distribution, branch circuits, and electrical installations. All calculations include temperature correction, bundling factors, and voltage drop considerations for professional accuracy.
Key Applications
Electrical installation design
NEC code compliance
Conductor selection and sizing
Conduit and raceway design
Electrical safety analysis
Cost optimization
Why Use Wire & Cable Calculators?
Professional Accuracy
Industry-standard calculations with NEC compliance
Free & Accessible
No registration required, instant results
Time Saving
Instant calculations with detailed explanations