Calculate voltage, current, and power
Calculate values using Ohm’s Law with inputs for voltage, current, and resistance. Determine power with formulas for watts, amps, and volts. Convert between units like volts, amps, and kilowatts. Store frequently used values for quick access.
Showing 101–120 of 1,000 ranked alternatives.
Vladislav Zhirnov
Convert units, calculate, and manage tasks
Convert units across 8 including length, weight, thermal resistance, and magnetism. Switch between metric and imperial systems. Save frequently used conversions. Export results as text or image.
1BIGRIG Ltd
Access calculators, safety guides, and checklists
Provides calculators for circuit design and load calculations. Includes safety references for UK electrical standards and BS 7671. Features checklists for installation and inspection tasks.
Ha Do Thi Thu
Calculate resistors, voltage, and capacitance
ElecKit provides tools for calculations. Users can calculate resistor values with 4/5 band codes and tolerance. It includes Ohm’s Law functions for voltage, current, resistance, and power.
Skipjack Studios, LLC
Calculate and track run times
Calculate using intuitive sliders. Input distance and time to determine . View estimated finishing times for different run lengths. Track progress with visual feedback.
Aryaman Sharda
Calculate values by bands
Determine values by selecting bands. Calculate resistance, tolerance, and temperature coefficients. View detailed specifications and compare ratings.
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.
Calculated Industries, Inc.
Calculate tasks with precision
Provides calculations for DIY and tasks. Users can convert units and solve equations using decimal or fractional inputs. Save calculations, organize favorites, and email inputs and results for sharing.
Greg Hewgill
Calculate complex numbers and matrices
Perform complex number calculations and trigonometric functions. Handle matrix operations and numerical root finding. Calculate integrals and statistical values including linear regression. Write and execute custom programs. No ads or in- purchases.
Kantaben Gorasiya
Calculate, convert, and solve equations
Perform calculations for generators and UPS systems, including single and three-phase setups. Convert lumens to watts and calculate fuel consumption. Determine ampere values from kilowatts and kilovolt-amps.
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.
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.
Angel Martinez
Calculate cable sizes and circuit dimensions
Calculate electrical circuits with tools for cable sizing, including phase, neutral, and protective conductors. Use criteria based on current capacity, voltage drop, and overcurrent protection.
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.