Mike Holt's Electrical Toolbox app icon

Apps Like Mike Holt's Electrical Toolbox for iPhone and iPad

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.

by Mike Holt Enterprises Inc.★ 4.6196 ratingsUtilitiesFreeData updated 2026-09-15

Mike Holt's Electrical Toolbox screenshots

Ranked alternatives

Showing 1–20 of 1,000 ranked alternatives.

  1. Southwire® Voltage Drop Calc app icon

    Southwire® Voltage Drop Calc

    Southwire Company

    Calculate and wire size

    Calculate for a specific conductor run or determine wire size based on and current carrying capacity. Limits wire size to and NEC ampacity. Supports AWG and KCMIL sizes only.

    ★ 4.61,480 ratingsUtilitiesFreeData updated 2026-09-08
  2. Electrical Calc Elite app icon

    Electrical Calc Elite

    Cyberprodigy LLC

    Calculate loads and circuits

    Calculate loads, voltage drops, and conductor sizes according to NEC codes. Verify compliance for residential and commercial projects. Access code references for 2002–2023 editions. Perform wire sizing, panel scheduling, and circuit calculations.

    ★ 4.8126 ratingsUtilities$19.99Data updated 2026-09-08
  3. Electric Toolkit - Calculator app icon

    Electric Toolkit - Calculator

    Cyberprodigy LLC

    Wire diagrams, pinouts, calculate electricity

    Access electrical wiring diagrams for switches, fans, and outlets. Calculate grounding conductor sizes. View diagrams for 3-way switches, 4-way switching, GFCI, and more. Includes NEC 2014 to NEC 2023 standards.

    ★ 4.8289 ratingsUtilities$5.99Data updated 2026-09-08
  1. 2017 Master Electrician Ref. app icon

    2017 Master Electrician Ref.

    PawEng, LLC

    Access electrical codes and standards

    Access electrical codes and standards for residential, commercial, and industrial applications. Search for wiring diagrams, safety protocols, and equipment specifications. View detailed explanations of electrical systems and components.

    ★ 4.71,260 ratingsProductivity$9.99Data updated 2026-09-14
  2. Ampora app icon

    Ampora

    Logan Cox

    Troubleshoot circuits and size wires

    Provides electrical calculations and references for wire sizing, circuit troubleshooting, and NEC code lookups. Users can ask specific questions, receive instant answers, and access code references.

    ★ 5.07 ratingsProductivityFreeData updated 2026-09-06
  3. ElectriCalc Pro app icon

    ElectriCalc Pro

    Calculated Industries, Inc.

    Calculate and document electrical work safely

    Perform electrical calculations for contractors, designers, and electricians. Calculate load, voltage drop, conduit fill, and panel sizing. Verify compliance with NEC® codes from 1996 to 2023. Store and retrieve past calculations.

    ★ 4.9357 ratingsUtilitiesFreeData updated 2026-09-08
  4. Electrical Calculator app icon

    Electrical Calculator

    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.

    ★ 4.6462 ratingsUtilities$3.99Data updated 2026-09-08
  5. Electrical Toolkit by HCP app icon

    Electrical Toolkit by HCP

    Codefied Inc.

    Calculate conduit bends and offsets

    Calculate conduit bends with offset and 90-degree tools. Determine stub-ups, kicks, and compound angles. Create three and four-point saddles for obstacle navigation. Access NEC-compliant calculations and field-tested utilities for work.

    ★ 4.741 ratingsUtilitiesFreeData updated 2026-09-06
  6. SIMpull 600V Calculator app icon

    SIMpull 600V Calculator

    Southwire Company

    Calculate wire pull characteristics and generate NEC®

    The includes multiple calculators for electrical wire pull calculations. Users can input parameters for voltage drop, ground wire sizing, ampacity adjustments, and phase wire attributes. Results are generated according to NEC® standards.

    ★ 4.259 ratingsReferenceFreeData updated 2026-09-08
  7. Electrical Calculator lite app icon

    Electrical Calculator lite

    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.

    ★ 4.6575 ratingsUtilitiesFreeData updated 2026-09-09
  8. Scootboot - Hoof Sizer app icon

    Scootboot - Hoof Sizer

    ISW Development Pty Ltd

    Take and send accurate sizing photos

    Guides users through sizing process with step-by-step instructions. Takes and sends accurate pictures for equine sizing. Provides measurements for proper fit. Ensures accurate sizing for better service.

    ★ 4.8119 ratingsUtilitiesFreeData updated 2026-09-06
  9. Ugly's Electrical References app icon

    Ugly's Electrical References

    Informed Publishing

    Access code tables and track updates

    Access code updates for 2023 NEC and NEMA standards. View table changes, formulas, and conduit bending guides with video tutorials. Calculate ampacity and conduit fill. Include transformer data and wiring configurations.

    ★ 4.41,493 ratingsProductivity$12.99Data updated 2026-09-15
  10. Electrical Engineering - lite app icon

    Electrical Engineering - lite

    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.

    ★ 4.7252 ratingsEducationFreeData updated 2026-09-09
  11. Ohms Law Calc. app icon

    Ohms Law Calc.

    V PUGAZHENTHI

    Calculate voltage, current, and resistance

    Calculate electrical values using formulas for voltage, current, resistance, power, and more. Determine wire size and voltage drop. Perform transformer and generator calculations. Convert between electrical units.

    ★ 4.71,326 ratingsUtilitiesFreeData updated 2026-09-08
  12. TLV ToolBox app icon

    TLV ToolBox

    TLV CO.,LTD.

    Calculate steam and control valves on

    Turn your mobile device into a portable steam calculation tool. Access steam tables for saturated and superheated steam. Calculate pipe sizing for steam and condensate. Perform heating calculations and determine Cv and Kv values.

    ★ 4.58 ratingsUtilitiesFreeData updated 2026-09-08
  13. Gaustec Tools app icon

    Gaustec Tools

    GAUSTEC INDUSTRIA E MANUTENCAO EM ELETROMAGNETICOS LTDA

    Calculate flow rates and recovery percentages

    Perform calculations for slurry flow rates, solids percentages, mass, metallurgical recovery, and weighted averages. Access equipment information and for sizing units. Submit feedback for improvements.

    ★ 0.00 ratingsProductivityFreeData updated 2026-09-08

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.