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Conversion Calculator
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CalculatorsOhm's Law Calculator LED Resistor Calculator Voltage Divider Calculator Resistor Color Code Calculator RC Time Constant Calculator Capacitor Energy Calculator Inductor Energy Calculator PCB Trace Width Calculator Battery Life Calculator Parallel & Series Resistor Calculator 555 Timer Calculator Current Divider Calculator Series & Parallel Capacitor Calculator Number Base Converter Low/High Pass Filter Calculator Reactance Calculator Capacitor Safety Discharge Calculator Three Phase Calculator SMD Capacitor Code Calculator SMD Resistor Code Calculator Attenuator Calculator Trace Impedance Calculator
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Temperature ConverterConvert between Celsius, Fahrenheit and Kelvin temperature scalesCalculate
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Length ConverterConvert between meters, feet, inches, centimeters, millimeters and moreCalculate
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Weight ConverterConvert between kilograms, pounds, ounces, grams and moreCalculate
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Pressure ConverterConvert between Pascal, bar, PSI, atmosphere and more pressure unitsCalculate
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Power ConverterConvert between watts, kilowatts, horsepower, BTU/h and moreCalculate
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Capacitance ConverterConvert between farads, microfarads, nanofarads, picofarads and moreCalculate
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BTU to Joule ConverterConvert between British Thermal Units (BTU) and Joules (J)Calculate
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Decimal to Fraction CalculatorConvert decimals to simplified fractions, or fractions to decimalsCalculate
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Volume & Mass ConverterConvert between liters, milliliters, gallons, fluid ounces and moreCalculate
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Wire Size ConverterConvert between AWG, mm diameter, mm² area and kcmilCalculate
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Inductance ConverterConvert between H, mH, µH, nH and pH inductance unitsCalculate
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Force ConverterConvert between Newton, kilogram-force, pound-force, dyne and moreCalculate
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Frequency & Wavelength ConverterConvert between frequency and wavelength using the speed of lightCalculate
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Ohm's Law CalculatorEnter any two electrical parameters to calculate voltage, current, resistance and powerCalculate
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LED Resistor CalculatorCalculate the required current-limiting resistor value and power rating for LED circuitsCalculate
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Voltage Divider CalculatorCalculate output voltage or required resistor values for a resistive voltage dividerCalculate
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Resistor Color Code CalculatorLook up resistor values by color bands, or find color bands for a given resistanceCalculate
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RC Time Constant CalculatorCalculate RC circuit time constant, charge/discharge time and voltage curvesCalculate
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Capacitor Energy CalculatorCalculate the energy stored in a capacitor (E = ½CV²)Calculate
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Inductor Energy CalculatorCalculate the energy stored in an inductor (E = ½LI²)Calculate
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PCB Trace Width CalculatorCalculate required PCB trace width based on current, copper weight and temperature rise (IPC-2221)Calculate
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Battery Life CalculatorEstimate battery life based on battery capacity and load currentCalculate
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Parallel & Series Resistor CalculatorCalculate equivalent resistance for series or parallel resistor circuitsCalculate
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555 Timer CalculatorCalculate frequency, duty cycle and component values for 555 timer circuitsCalculate
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Current Divider CalculatorCalculate current distribution in parallel branch circuitsCalculate
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Series & Parallel Capacitor CalculatorCalculate equivalent capacitance for series or parallel capacitor circuitsCalculate
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Number Base ConverterConvert between binary, octal, decimal and hexadecimalCalculate
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Low/High Pass Filter CalculatorCalculate the cutoff frequency of RC low-pass or high-pass filtersCalculate
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Reactance CalculatorCalculate capacitive or inductive reactance at a given frequencyCalculate
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Capacitor Safety Discharge CalculatorCalculate the time required to safely discharge a capacitor through a resistorCalculate
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Three Phase CalculatorCalculate power, current and voltage in three-phase circuitsCalculate
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SMD Capacitor Code CalculatorDecode the markings on SMD capacitorsCalculate
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SMD Resistor Code CalculatorDecode the numeric codes on SMD resistorsCalculate
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Attenuator CalculatorCalculate resistor values for T-pad or Pi-pad attenuatorsCalculate
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Trace Impedance CalculatorCalculate characteristic impedance based on PCB trace width and stackupCalculate
