Free practical electronics engineering calculators for circuit design, components, RF, power electronics, batteries, signal analysis and electrical engineering.
Explore calculators covering fundamental circuits, passive components, RF and signal analysis, batteries, electrical units and practical hardware engineering.
Calculators for voltage, current, resistance, power, dividers, time constants and resonance.
Practical calculators for resistors, capacitors and inductors used in everyday circuit design.
Calculators for wavelength, frequency, antennas, dB, dBm and signal relationships.
Tools for electrical power, batteries, stored energy and practical power-system calculations.
Convert frequency and period and work with timing relationships used in digital and analog electronics.
Convert common electrical engineering units and signal levels quickly without leaving the Octopart platform.
Browse the available Octopart.org calculators. Each tool provides the relevant formula, inputs, worked examples and practical engineering notes.
Fundamental voltage, current, resistance, power and circuit relationships.
Calculate voltage, current, resistance and power using Ohm's law.
Open CalculatorCalculate divider output voltage, current and resistor power.
Open CalculatorCalculate current distribution through parallel resistor branches.
Open CalculatorCalculate electrical power from voltage, current and resistance.
Open CalculatorCalculate RC and RL time constants and related circuit timing values.
Open CalculatorCalculate LC and RLC resonant frequency from inductance and capacitance.
Open CalculatorComponent values, combinations, stored energy and electrical characteristics.
Decode 3-digit, 4-digit, R-marked and EIA-96 SMD resistor markings.
Open CalculatorDecode resistor values from common color-band markings.
Open CalculatorCalculate total resistance, circuit current, voltage drops and power for series resistors.
Open CalculatorCalculate equivalent resistance for parallel resistor networks.
Open CalculatorCalculate capacitive reactance from frequency and capacitance.
Open CalculatorCalculate inductive reactance from frequency and inductance.
Open CalculatorCalculate equivalent capacitance, charge and voltage distribution.
Open CalculatorCalculate total capacitance for parallel capacitor networks.
Open CalculatorTools for frequency, wavelength, antennas, signal levels and RF engineering.
Estimate quarter-wave and other antenna lengths from operating frequency.
Open CalculatorConvert voltage ratios to dB and dB values back to voltage ratios.
Open CalculatorConvert RF power levels between dBm, watts, milliwatts and microwatts.
Open CalculatorConvert frequency to period and period to frequency across common units.
Open CalculatorPractical tools for electrical power, battery capacity and stored energy.
Estimate battery runtime from capacity, voltage, load and efficiency.
Open CalculatorConvert electrical engineering quantities and signal-related units.
Convert common electrical units including voltage, current, resistance, capacitance, inductance, frequency and power.
Open ConverterConvert between frequency and wavelength for RF, optical and acoustic applications.
Open ConverterThe calculator library will continue expanding into PCB engineering, embedded systems, power electronics, RF and hardware manufacturing.
Ohm's law, voltage and current dividers, resistance, power, capacitors, inductors, RC circuits and resonance.
Resistor color codes, SMD markings, capacitor codes, component combinations, energy storage and practical component calculations.
Wavelength, antennas, dB, dBm, attenuation, signal ratios, RF systems and transmission-line calculations.
Trace width, via current, impedance, PCB stackups, converters, batteries, thermal calculations and power-system tools.
Future tools can include UART, SPI, I²C, PWM, clocks, BOM analysis, PCB manufacturing, assembly and hardware production utilities.
Octopart.org brings practical electronics calculations and engineering utilities into one accessible platform. The calculator library covers circuit design, passive components, RF and signal analysis, power electronics, batteries and electrical unit conversion.
New engineering tools can be added progressively, with an emphasis on clear formulas, useful examples, responsive interfaces and practical engineering notes.
Stay updated with the newest trends in electronics, hardware, and embedded systems.
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The post Manfred Horstmann: GlobalFoundries Bets on FDX Fusion for Physical AI appeared first on EE Times.
Join our expert-led webinar to explore Infineon's comprehensive portfolio for Solid-State Transformers (SSTs).
The post Solid-State Transformers: Accelerate Your SST Design appeared first on EE Times.
Join this BitCast and explore how extending NoC connectivity across die boundaries enables engineering teams to scale from monolithic SoCs to multi-die architectures.
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Manufacturing maintains nine-month growth streak despite soaring costs and trade barriers.
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Physical AI will be limited in the real world if we keep pretending that physical data comes packaged like the digital world.
The post Physical AI Needs a Neuromorphic Path from Sensor to Silicon appeared first on EE Times.
Novaspace, the space consulting and market intelligence firm, has released the 2nd Edition of its Satellite Communications for Defense and Security report. This covers the global military satellite communications market, […]
The post Defence satcom revenues to surpass $23bn by 2035 appeared first on Electronics Weekly.
Axiom Space, which specialises in human spaceflight services and space infrastructure, says it is making progress on its “orbital compute” strategy. Specifically, progress on its Axiom Resilient Compute (ARC) platform. […]
The post Axiom Space highlights space computing progress appeared first on Electronics Weekly.
28 years ago, EW carried this yarn: ‘National Semiconductor’s president and CEO, Brian Halla, said that the company would reduce the chip count of PCs from 12 to one […]
The post The Single-Chip PC appeared first on Electronics Weekly.
TSV misalignment revealed with plasma focused ion beam milling Failure analysis has become an integral part of process optimisation and has evolved from a 2D process to a 3D challenge, […]
The post Failure analysis in the era of 3D integration appeared first on Electronics Weekly.
Diodes has announced its family of field-plated Super Barrier Rectifier (SBRFP) products that are automotive-compliant (AEC-Q101). The family comprises the 2A SBRFP2M60P1Q and SBRFP2M60SAFQ, the 3A SBRFP3M60SAFQ, and the 8A […]
The post Automotive SBRFP devices feature avalanche energy ratings up to 145mJ appeared first on Electronics Weekly.