Calculate voltage, current, and power
Calculate properties using Ohm's Law, current, power, voltage, resistance, and horsepower formulas for DC and AC circuits. Convert units between volts, amps, watts, and ohms. Determine power factor and RMS voltage. Estimate voltage drop in systems.
Showing 41–60 of 1,000 ranked alternatives.
Adafruit Industries LLC
Calculate component values and resistor codes
Calculate component values for Op Amp, 555, RC Filter, and Resistor Divider circuits. Decode resistor and capacitor codes. Compute power, resistance, current, and voltage using Ohm's Law and Power Calculators.
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.
tasser gyati
Calculate, convert, and solve equations
Offers standard and advanced math functions including percent, negative sign, memory, brackets, and history. It includes trigonometry, roots, exponents, and logarithms.
Gergely Nagy
Calculate voltage, current, resistance, and power
Calculate voltage, current, resistance, or electric power by entering any two values. Convert results between normal and scientific notation. Display calculated values clearly.
Sam Virgillo
Calculate voltage, current, and power
Calculate voltage, current, and power in 3-phase delta and wye circuits. Determine conductor ampacity using NEC and CEC tables. Compute voltage drop based on length, size, current, and temperature.
Carlo Terracciano
Calculate values
Provides tools for calculations and theory. Users can explore Ohm's Law and resistor calculations. Access theoretical concepts in Basic Knowledge and practical exercises in and Advanced sections.
Kantaben Gorasiya
Calculate current, voltage, resistance, and more
Calculate current in parallel circuits, voltage in series circuits, and resistance in both series and parallel configurations. Use Ohm's Law, DC calculations, and LR filter tools.
Rajendran Sajith Sajindran
Convert with precision and speed
Convert across 20 categories including length, weight, temperature, and more. Perform real-time conversions with 8-decimal precision. Switch between metric and imperial systems. Use scientific notation and dark mode.
Pro Certs Software Ltd
Calculate kVA, kW, and Amps
Calculate kVA, kW, Amps, Volts, and Power Factor using single or three-phase formulas. Input two values to determine the third. Convert between kVA, kW, and Amps. Supports UPS, generator, and transformer calculations.
Marcus Roskosch
Calculate, analyze, and design circuits
Calculate impedance and transmission line parameters. Analyze signal integrity and loss. Convert between frequency units. Simulate circuits. Calculate antenna parameters and resonance frequencies. Perform S-parameter calculations.
Calc Hub, LLC
Estimate blocks and bricks for walls
Calculate materials for and brickwork projects. Estimate blocks, bricks, mortar, concrete, and gravel needed. Input wall dimensions in various units. Use calculators for area, volume, and retaining walls.
Calc Hub, LLC
Calculate materials and estimate costs for paving
Calculate , base material, and sealcoat quantities for paving projects. Input dimensions in various units and receive results in tons, cubic yards, or cubic meters. Estimate material costs based on input measurements.
Scott DeSapio
Convert units across 16 categories
Convert units across 16 categories with instant results. Switch between metric, imperial, and other systems. Calculate conversions for length, weight, temperature, and more. Store frequently used values for quick access.
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