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.
Design an Active Low Pass or High Pass Filter using an Operational Amplifier (Op-Amp). Calculate cutoff frequency and …
Estimate how long a battery will last for a given load. Useful for planning portable electronics projects and IoT …
Calculate the energy stored in a Capacitor (Joules) or an Inductor (Joules) given the voltage or current.
Calculate the value of the series resistor needed for an LED. Protect your LED from burning out by choosing the right …
Calculate Voltage (V), Current (I), Resistance (R), or Power (P) using Ohm’s Law. Enter any two …
Calculate the total equivalent resistance of resistors connected in parallel. Add as many resistor values as needed.
Design a simple Passive RC Low Pass or High Pass Filter. Calculate the resistor or capacitor value needed for a specific …
Calculate the RC time constant (τ) of a resistor-capacitor circuit. This determines how fast the capacitor charges or …
Calculate Inductive Reactance (XL) and Capacitive Reactance (XC) for a given frequency.
Decode the color bands on 4-band and 5-band resistors to find their resistance value and tolerance.
Convert between Frequency (Hertz) and Period (Seconds Measure). Understanding the relationship between time period and …
Calculate the output voltage of a resistive voltage divider circuit. Determine Vout based on the Input Voltage (Vin) and …
Calculate the unknown resistor value (Rx) in a balanced Wheatstone Bridge circuit given R1, R2, and R3.
In electrical, RF, and optical engineering, power levels often span many orders of magnitude, ranging from Picowatts …