ElXHub Utility Suite
Professional-grade tools for electronics design, unit conversion, and hardware reference.
Filter by Type: Switch between categories using the navigation tabs.
Instant Search: Find specific tools by name, unit, or component type.
Mobile Ready: All tools are optimized for use on your phone or tablet.
Resistor Color Code
Calculate 4-band values and tolerances.
CalculatorOhm’s Law
Solve for Voltage, Current, and Resistance.
CalculatorPower Calc
Calculate Watts from Amps and Volts.
CalculatorVoltage Divider
Calculate output from resistor pairs.
CalculatorLED Resistor
Find the right resistor for your LEDs.
CalculatorArduino Pinout
Quick map for Uno, Nano, and Mega GPIO functions.
ReferenceSeries & Parallel Res.
Total resistance in parallel circuits.
CalculatorNumber System
Convert Binary, Hex, and Decimal.
ConverterLength
Metric to Imperial length conversion.
ConverterBattery Life
Estimate runtime based on capacity and load.
CalculatorScientific
Advanced math and trig functions.
CalculatorTemperature
Celsius, Fahrenheit, and Kelvin.
ConverterWeight/Mass
Convert kg, lbs, and grams.
ConverterData Unit
Convert MB, GB, TB, and Bits.
ConverterTime
Convert hours, mins, and seconds.
ConverterSpeed
Convert km/h, mph, and knots.
ConverterPower Cost
Estimate energy usage and monthly electricity costs.
CalculatorCapacitor Calc
Total capacitance for series and parallel circuits.
CalculatorFrequency/Period
Frequency & Time Period Conversion
ConverterPressure
Convert between Bar, PSI, Pascals, and Atmospheres
ConverterTorque
Convert rotational force between several scales.
ConverterAWG Wire Chart
Wire diameter, resistance, and max current ratings.
ReferenceLogic Levels
Ensure hardware compatibility.
ReferenceSMD Size Chart
Compare Imperial vs Metric SMD package dimensions.
Reference7-Segment Map
Pin mapping for common anode/cathode displays.
ReferenceLED Color Temp
Kelvin (K) ratings for warm vs. cool white LEDs.
ReferenceDrill Bit Sizes
Metric/Imperial sizes for PCB holes and mounting.
ReferenceCapacitor Codes
Decode 3-digit markings (104, 223, etc.) to µF/nF values.
ReferencePinout Guide
Wiring diagrams for USB, DC Jacks, and common headers.
ReferenceE-Series Values
Standard E12 & E24 resistor and capacitor values.
Reference555 Timer
Calculate frequency and duty cycle for timing circuits.
CalculatorRC Filter Cutoff
Determine the -3dB point for Low-Pass and High-Pass filters.
CalculatorPower Dissipation
Calculate heat in Watts to choose the right resistor size.
CalculatorPCB Trace Width
Calculate required trace width for current, temperature rise, and copper thickness.
CalculatorCharge Time Calc
Estimate charging time based on battery capacity, charger current, and efficiency.
CalculatorVoltage Drop
Calculate power loss over wire distance based on gauge, material, and current.
CalculatorCapacitor Converter
Convert between pF, nF, and µF units instantly.
ConverterColor Converter
Convert RGB values to Hex format and preview colors for web or LED design.
ConverterEnergy Converter
Convert between Joules (J), Watt-hours (Wh), Calories, and BTU.
ConverterLogic Gate Lab
Interactive playground for AND, OR, XOR, and NOT logic gates.
Lab-toolPWM Visualizer Lab
Visualize Pulse Width Modulation waveforms and calculate effective voltage.
Lab-toolLED Safety Lab
Simulate LED brightness and calculate current-limiting resistors safely.
Lab-ToolVoltage Divider Lab
Visualize how resistor ratios split voltage in a live circuit simulation.
Lab-ToolBattery Discharge Lab
Predict project runtime based on battery capacity and current consumption.
Lab-Tool555 Timer Reference
Complete pinout and internal block diagram for the world’s most popular IC.
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