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Electronics Calculators

Access our collection of handy electronics calculators. Quickly compute resistor values, LED resistors, voltage dividers, Ohm’s law calculations, and other essential circuit parameters to speed up your project planning.

LED Series Resistor Calculator

LED Series Resistor Calculator

Use this calculator to determine the value of the resistor to add in series with...

Capacitor Code-Value Converter

Capacitor Code-Value Converter

Use this calculator to quickly convert between the 3-digit codes found on capacitors and their...

555 Timer Monostable Circuit Calculator

555 Timer Monostable Circuit Calculator

Use this calculator to compute the output pulse width of a 555 timer monostable circuit....

555 Timer Astable Circuit Calculator

555 Timer Astable Circuit Calculator

Use this calculator to determine the various characteristics of square waveform output from a 555-timer...

Capacitance Conversion

Capacitance Conversion

Use this calculator to quickly convert capacitance values between units pF, nF, µF and F....

5-Band Resistor Color Code Calculator

5-Band Resistor Color Code Calculator

Use this calculator to identify the value, and tolerance of a 5-band color coded resistor...

Temperature Conversion

Temperature Conversion

Use this calculator to easily convert temperatures between Celsius, Fahrenheit, Kelvin, and Rankine. Celsius: °C...

Voltage Divider Calculator

Voltage Divider Calculator

Use this tool to calculate the output voltage of a resistor divider circuit for a...

Battery Life Calculator

Battery Life Calculator

This calculator offers two options—simple, and advanced—for estimating how long a battery will last before...

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