Showing 1–20 of 1,000 ranked alternatives.
Mike Holt Enterprises Inc.
Size conductors, calculate voltage drop, select circuit
Provides conductor sizing calculations, circuit protection sizing, raceway sizing, and equipment grounding conductor sizing for heating and air-conditioning equipment.
V PUGAZHENTHI
Calculate values instantly
Provides tools for and electronics calculations. Users can compute resistance, voltage, current, and power. Includes resistor color code conversion and voltage drop calculations aligned with NEC/IEEE standards. Supports USCS and SI units.
Blue Collar Labs Inc.
Practice NEC questions and track progress
Study for exams with practice questions, detailed explanations, and NEC code references. Track progress with personalized stats. Practice for Journeyman, Master Electrician, or Contractor exams.
Altaf Mogal
Study electrical theory and take mock tests
Study Electrical Theory, Safety Rules, Circuits, Motors, Transformers, and NEC codes. Take practice tests with random questions. Access mock exams for preparation. Track progress through practice and study modes.
V PUGAZHENTHI
Calculate voltage, current, and resistance
Calculate values using resistor color codes, voltage, current, and resistance formulas. Perform impedance and RLC circuit analysis. Input values to get accurate results for engineering, wiring, and circuit design tasks.
V PUGAZHENTHI
Calculate voltage, current, and resistance
Calculate values using voltage, current, resistance, and power formulas. Access single and three phase calculators, horsepower tools, and unit converters. Unlock additional features with an in- purchase.
Electrical Training Center, Inc.
Connect with professionals and access learning content
Connect with professionals in the or HVAC/R industry. Access learning videos and articles. Track projects and share resources. Schedule meetings and join discussion forums.
Sergey Vavaev
Access theory, diagrams, and calculators offline
’s provides access to electrical theory topics, including exercises with answers. Features interactive diagrams for hands-on learning. Includes calculators and formulas for electrical calculations. Works offline without ads or subscriptions.
Glocal Development LLC
Access car experts via live video chat
Access certified automotive experts through live video chat. Schedule rideshare inspections, Turo safety checks, or repair guidance. Get real-time help buying or selling used cars. View expert credentials and choose a subscription plan.
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