Electrical Box Fill Calculator

Calculate electrical box fill capacity according to NEC requirements to ensure code compliance and safe installation.

Box Fill Parameters

Calculate electrical box fill capacity according to NEC Article 314 requirements

Box Type

Wire Configuration

Devices (switches, outlets)

Wire Nuts

Cable Clamps

Equipment Grounding

Fixture Studs

Hickeys

Box fill calculations per NEC Article 314.16. Each conductor, device, and accessory requires specific volume allowances to ensure safe installation and code compliance.

Actions

Box Fill Analysis

NEC Article 314 compliance check and volume breakdown

Configure box and conductors to see fill analysis

NEC Article 314 compliance check