Electronics Tools

Welcome to our Electronics Tools section. From basic circuit calculations like Ohm’s Law and Voltage Dividers to filter design and resistor color codes, these tools are designed to assist you in your projects.

Select a calculator below to get started.

Active Filter Calculator
Design an Active Low Pass or High Pass Filter using an Operational Amplifier.

Battery Life Calculator
Estimate how long a battery will last for a given load.

Energy Storage Calculator
Calculate the energy stored in a Capacitor or an Inductor.

LED Resistor Calculator
Calculate the value of the series resistor needed for an LED.

Ohm's Law Calculator
Calculate Voltage, Current, Resistance, or Power using Ohm's Law.

Parallel Resistor Calculator
Calculate the total equivalent resistance of resistors connected in parallel.

Passive Filter Calculator
Design a simple Passive RC Low Pass or High Pass Filter.

RC Time Constant Calculator
Calculate the RC time constant (τ) of a resistor-capacitor circuit.

Reactance Calculator
Calculate Inductive Reactance (XL) and Capacitive Reactance (XC) for a given frequency.

Resistor Color Code Calculator
Decode the color bands on 4-band and 5-band resistors to find their resistance.

Time-Frequency Converter
Convert between Frequency (Hertz) and Period (Seconds Measure).

Voltage Divider Calculator
Calculate the output voltage of a resistive voltage divider circuit.

Wheatstone Bridge Calculator
Calculate the unknown resistor value (Rx) in a balanced Wheatstone Bridge circuit.

dB to Power Ratio Converter
Convert between power ratios and decibels.

dB to Voltage Ratio Converter
Convert between voltage ratios and decibels.

dBm to Power Converter
Convert between dBm and Milliwatts (mW) with this converter.

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