AmpGuide

AmpGuide is an electrical field reference and calculator suite for journeymen, apprentices, inspectors, engineers, solar installers, EV installers, and serious DIY customers.

It brings common jobsite calculations into one offline workbench so you can check numbers, compare options, and keep notes without digging through separate utilities.

Core tools:
- Wire size calculator with ampacity and voltage-drop checks
- Voltage drop for copper or aluminum, single-phase or three-phase
- Ampacity tables with ambient and conductor-count derating
- Breaker sizing for continuous and non-continuous loads
- Conduit fill, box fill, Ohm's Law, and three-phase helpers
- Residential service-load planning references
- Grounding electrode conductor sizing
- Motor full-load current, lighting demand, and fault-current tools
- Solar PV string, EV charger, and bid-estimate workspaces

AmpGuide is designed for quick field decisions and reviewable planning, not for replacing the official NEC book, engineering judgment, or local authority requirements. Always verify final work against current code, site conditions, and the authority having jurisdiction.

Saved calculations and estimate notes stay on the device. AmpGuide does not request protected device permissions in version 1.0.