Made by electrical engineers and hobbyists for electrical engineers and hobbyists, Electronics Tools provides solutions to a wide range of circuit calculations. From the basics (Ohm’s Law) to the more complex (8th order active filters), Electronics Tools has you covered with a clean and straight forward interface that provides the information you need.
For instance, suppose you wanted to find the values needed for a simple second order active filter. Entering just the frequency finds the optimum resistor and capacitor values in five tolerance bands and gives you the minimum and maximum corner frequencies for each tolerance. Optionally, you can enter additional values, such as the resistor value, and the remaining values will be calculated. Every calculation provides the information that you need to know when working with your circuits.
On smaller screens such as an iPhone, the calculation results can be fully displayed by tapping the “Show” button. The display can also be split showing the data entry area and its schematic along with a scrolling partial view of the results.
Electronics Tools includes calculators for:
Basic Calculations
Calculator
Capacitance reactance
dB - Voltage
dB - Power
Frequncy-period-wavelength
Inductance reactance
LC resonance
LED series resistor
Ohms Law
Other Multipliers
Parallel and series capacitor value
Parallel and series inductor value
Parallel and series resistor value
Phase-delta t
RMS-peak-peak to peak
Components
FET cheat sheet (Reference)
Resistor Color Code Decoder
Resistor Color Codes Article (Article)
Resistor Value Check
Resistor Value to Color Code
SMD resitor marking to and from value
Standard resistance values (Reference)
Conversions
Area
Length
Temperature
Volume
Dividers
Dual Supply
Pot with Resistor Dual Supply
Pot with Resistor Ratio
Pot with Resistor Single Supply
Resistor Ratio
Single Supply
Filters
2nd Order bandpass
2nd Order bandpass Biquad
2nd Order highpass
2nd Order lowpass
4th Order highpass
4th Order lowpass
6th Order highpass
6th Order lowpass
8th Order highpass
8th Order lowpass
Filter Types (Article)
Highpass RC & RL Amplitude and Phase
Lowpass RC & RL Amplitude and Phase
Passive RC
Passive RL
Power Supply ripple (Full Wave)
Power Supply ripple (Half Wave)
Logic
Basic Gates (Reference)
Flip Flop (Reference)
Interfacing Different Logic Families (Article)
Op-amp
Differential Amplifier
Inverting Amplifier
Non-inverting Amplifier
Op-amp basics (Article)
Op-amp errors (Article)
Transimpedance Amplifier (Article)
Oscillators
555 astable (free running)
555 monostable (one shot)
Logic Gate Oscillator
Sine and Cosine Oscillator
Other References
ANSI clearance and tap
Drill Table
Wire Table
Voltage Regulators
LM317 - LM338
LM337
Zener
Circuit Snippets
Adder Subtractor
Capacitance Multiplier
Constant Current Source
Crystal Oscillator
Op-amp Bridge Drive
Parallel Op-amps
Parallel Transistors
Summing Amplifier
Voltage to Current