Box Fill Calculator
Calculate maximum conductors per NEC 314.16
Box Type
Standard Box
Square Box
Round Box
Octagonal Box
Box Size (cu. in.)
Please enter a valid box size.
Conductors
#14 AWG
#12 AWG
#10 AWG
#8 AWG
#6 AWG
Additional Items
Internal Clamps
Support Fittings
Devices (yokes)
Equipment Grounding Conductors
Calculate
Result
Calculation Details