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.
Showing 81–100 of 1,000 ranked alternatives.
SuperDG Inc.
Calculate, edit, and track entries
A with simple arithmetic functions. Displays calculation history. Shows current input. Features intuitive design and universal compatibility. No additional features or complex calculations included.
Kopperfield, Inc.
Design projects with load calcs and diagrams
Provides load calculations, line diagrams, and panel schedules for electrical projects. Users input property details to generate updated calculations.
Flicent Inc
Calculate square footage and convert measurements
ContractorCalculator helps users perform on-the-go calculations for square footage, measurement conversions, and fraction math. It supports trade-specific tasks like amps to watts and wire size.
Southwire Company
Select size and type for installations
Determines minimum conductor size and recommends and cable types based on installation requirements. Follows National Electrical Code® standards. Calculates ampacity and voltage drop. Supports various wiring methods and conductor materials.
Siu Yuen Ho
Calculate, measure, and test components
Calculate component values for desired corner frequency, resistance, capacitance, or inductance. Find combinations of resistors, capacitors, and inductors. View detailed calculations and formulas. Export results. Remove ads with PRO version.
Shane Anderson
Calculate tool offsets and feed rates
Calculate turning operations with spindle speed, feed rate, and tool engagement angle inputs. Determine cutting time and material removal rates. Convert imperial to metric units. Store and recall frequently used settings.
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.
Armchair Engineering
Calculate voltage, current, and resistance
Calculate electrical circuit values by entering two known variables (current, resistance, voltage, or power). Adjust units dynamically for accurate results. Display total resistance and power in the circuit.
Cooper Bussmann, LLC
Calculate fault current for electrical systems.
The app calculates available fault current on single and three-phase systems. It can also size fuses and conductors for circuits and create a label for service equipment.
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