Box Fill Calculator (NEC 314.16) | SparkAlpha

Calculate junction box volume requirements

Conductor #1

Wire Size

Quantity

Additional Allowances

Cable Clamps

Support Fittings

Devices (Yokes)

Equipment Grounding Conductor

EGC Size

Results

Conductor Volume6.75 in³

Clamp Allowance2.25 in³

Support Fittings0.00 in³

Device Allowance4.50 in³

EGC Allowance2.25 in³

Total Required15.75 in³

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