E-Calc USA app icon

Apps Like E-Calc USA for iPhone and iPad

by Snappy Appz Inc.★ 5.01 ratingsUtilities$14.99Data updated 2026-09-06

E-Calc USA screenshots

Ranked alternatives

Showing 61–80 of 1,000 ranked alternatives.

  1. Cross Stitch Calculators app icon

    Cross Stitch Calculators

    Diana Białogrzywa

    Calculate fabric size and material needs

    Calculate fabric size in centimeters or inches based on count and fabric type. Determine thread consumption for specified stitches. Input project details to estimate material needs. Export calculations for reference.

    ★ 4.7296 ratingsLifestyleFreeData updated 2026-09-06
  2. Pipe Flow Wizard - Calculator app icon

    Pipe Flow Wizard - Calculator

    Daxesoft Ltd

    Calculate rate and pressure loss

    Calculate fluid rates and pressure loss in pipes. Determine diameter or maximum length based on rate and pressure drop. Find friction loss and rate using built-in formulas. Input dimensions and fluid properties for accurate results.

    ★ 4.6103 ratingsUtilitiesFreeData updated 2026-09-14
  1. Converter and Calculator app icon

    Converter and Calculator

    Cider Software LLC

    Convert units and currencies instantly

    A and unit/currency with a clean interface. Convert between 500 units across 29 categories and 161 currencies. Customize colors and display selected units. Enter values to instantly convert between units.

    ★ 4.7267 ratingsUtilities$2.99Data updated 2026-09-08
  2. Electrodoc Pro app icon

    Electrodoc Pro

    IODEMA SRL

    Lookup resistor values and color codes

    Allows users to calculate resistor values using color codes and SMD codes. It includes tools for Ohm's Law, reactance, resonance, and voltage dividers. Users can determine resistor ratios, series/parallel combinations, and LED resistor needs.

    ★ 4.663 ratingsProductivity$4.99Data updated 2026-09-12
  3. Duct Calculator app icon

    Duct Calculator

    Pheinex, LLC

    Calculate size and performance

    Calculate size for round or rectangular ductwork. Adjust airflow, diameter, width, or height using sliders. Enter values directly for precise measurements. Lock friction calculations for accurate results.

    ★ 4.5189 ratingsUtilities$19.99Data updated 2026-09-10
  4. Watts Amps Volts  Calculator app icon

    Watts Amps Volts Calculator

    Pro Certs Software Ltd

    Calculate , , and

    Calculate electrical power for single phase systems by converting between , , and . Input values to solve for unknowns. Support for three phase calculations including kilowatts, , , and power factor.

    ★ 4.450 ratingsUtilitiesFreeData updated 2026-09-08
  5. Gas Pipe Sizing Calculator app icon

    Gas Pipe Sizing Calculator

    Connor Kelley

    Calculate gas size based on BTU, length,

    Calculate gas size based on BTU load, length, and gas type (LP or Natural). Input values and select gas type to determine minimum size. Output result for immediate use.

    ★ 4.04 ratingsUtilities$1.99Data updated 2026-09-08
  6. DC Wire Sizer app icon

    DC Wire Sizer

    Dirty Dog Software, LLC

    Size wires for DC voltage and current

    Calculate size for DC voltage systems to prevent overheating and fires. Input parameters to determine appropriate gauge. Save, edit, sum, email, and export run data. Include a wizard for guided calculations.

    ★ 5.024 ratingsUtilities$2.99Data updated 2026-09-08
  7. Ohm & Watt Law Electrical Calc app icon

    Ohm & Watt Law Electrical Calc

    TrothMatrix OPC Private Limited

    Calculate voltage, current, resistance, and power

    Calculate Voltage, Current, Resistance, and Power using Ohm’s Law and ’s Law. Input values to solve for unknowns. Display results instantly. Includes formulas for calculations. Supports both direct and indirect circuit analysis.

    ★ 4.752 ratingsUtilitiesFreeData updated 2026-09-17
  8. Dilution Calculator app icon

    Dilution Calculator

    Samuel Blackburn

    Calculate ratios instantly

    Calculate ratios by entering the desired ratio and bottle size. Determine the exact amounts of water and solution needed. Supports litres and millimetres with future unit additions. Share results or provide feedback through in- options.

    ★ 4.7127 ratingsUtilitiesFreeData updated 2026-09-06
  9. SLD | Electrical diagrams app icon

    SLD | Electrical diagrams

    Angel Martinez

    Create with drag-and-drop symbols

    Create one-line using standardized symbols. Select and drag symbols to arrange . Includes IEC and ANSI symbols for engineering. Add circuit breakers, switches, fuses, and other components. Save and export .

    ★ 4.1132 ratingsProductivity$1.99Data updated 2026-09-14
  10. NEMA Configuration Guide app icon

    NEMA Configuration Guide

    Summit Electric Supply, Co. Inc.

    Identify receptacles and plugs

    Identify unknown receptacle and plug configurations. Plug in a known device to find matching results. View detailed configurations and compatibility information. Helps electricians and professionals quickly determine correct standards.

    ★ 4.853 ratingsUtilitiesFreeData updated 2026-09-06
  11. ThreadKing app icon

    ThreadKing

    Motionics, LLC

    Calculate thread sizes and dimensions

    Provides drill and tap size charts for fractional, letter, and wire standards. It calculates drill sizes for cutting and forming taps based on thread percentage. It also computes RPM and feed rates for cutting taps in various materials.

    ★ 4.712 ratingsProductivityFreeData updated 2026-09-10
  12. Prysmian Group Voltage Drop app icon

    Prysmian Group Voltage Drop

    Prysmian S.p.A.

    Calculate and conductor size

    Calculate to determine maximum circuit distance and minimum conductor size. Input parameters to find required conductor size, actual loss, maximum allowable loss, and maximum amps. Use NEC® table T310.15 (B) (16) 75°C ratings for amperage values.

    ★ 5.06 ratingsProductivityFreeData updated 2026-09-09
  13. Construction Calc Lite app icon

    Construction Calc Lite

    Snappy Appz Inc.

    Calculate in feet, inches, and fractions

    Perform calculations with feet, inches, and fractional inches. Add, subtract, multiply, divide, and compute roots or powers. Scale drawings using the scaling feature. Convert and manage measurements directly within the .

    ★ 4.6129 ratingsUtilitiesFreeData updated 2026-09-08
  14. Pipe Tools app icon

    Pipe Tools

    Global Alloy Pipe & Supply, Inc.

    Access specs and charts on the go

    Access steel specifications including wall thickness and mass measurements in inches, millimeters, pounds, and kilograms. Convert units between feet, meters, pounds, and metric tonnes. Compare costs and view charts from ASME B36.

    ★ 4.119 ratingsProductivityFreeData updated 2026-09-08
  15. Breaker Box: Panel Directory app icon

    Breaker Box: Panel Directory

    Brett Pappas

    Create legends with color labels and options

    Create legends with customizable color labels for phases, tandem breakers, and 3-pole breakers. Adjust legend size for printing on sleeves or door tape. Export as needed.

    ★ 4.499 ratingsUtilitiesFreeData updated 2026-09-17
  16. ConduitFill 3.0 app icon

    ConduitFill 3.0

    Arismendi Hernandez

    Select wires, get conduit size

    Calculate conduit trade size based on wire sizes and NEC 2023 standards. Input up to five wire sizes to determine minimum required conduit size. Verify code compliance for electrical installations.

    ★ 0.00 ratingsUtilities$2.99Data updated 2026-09-06

How we rank alternatives

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