Mike Holt's Electrical Toolbox vs Sparky Toolbox

Mike Holt, the industry leader in the electrical industry (MikeHolt.com) has created an amazing, practical and useful app for the electrician, inspector, instructor, contractor and engineer. The app contains conductor sizing (including voltage drop limitations), circuit protection sizing, race sizing, equipment grounding conductor sizing for electric heating equipment (commercial and Residential), air-conditioning equipment (commercial and Residential), motors (commercial and Residential), Transformers (commercial) , and dwelling-unit service calculations and sizing.

Stop wasting time with manual paperwork or complex formulas. Built specifically for electrical contractors and field electricians, this app delivers fast, on-the-job preliminary calculations right from your phone. Whether you are estimating a project, bidding a job, or verifying field measurements, these 9 powerful calculators streamline your workflow and save you time. 9 Essential Calculators in One App Ohms Law: Instantly solve for voltage, current, and power. Motor OCPD & Wire Sizing: Determine Overcurrent Protection Devices and wire sizes for motors. Transformer OCPD & Wire Sizing: Get breaker and conductor sizing for transformer loads. Wire Selection & Sizing: Select wire size and matching OCPD for any specific application. Conduit Fill: Check total wire capacity limits for your conduit runs. Voltage Drop: Estimate voltage loss over long distances to keep your systems efficient. Standard Dwelling Load: Simplify residential service calculations in seconds. Transformer Sizing: Determine the kVA rating needed for your specific load requirements. Solar Panel Calculator: Input energy targets to find how many PV panels you will need. Why Electricians Love This App Built for the Field: Clean, high-contrast interface designed for easy use on busy job sites. Fast Estimates: Generate quick preliminary calculations to speed up project bidding. Lightweight & Fast: Opens instantly without lagging, saving you time when every minute counts. Download now and put a full suite of electrical tools right in your pocket!