10 Online Calculators To Help Electronics Engineers

Atithya Amaresh

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Here’s bringing 10 calculators from the web to help in Electrical and Electronics Engineering calculations.


1. Current Limiting Resistor Calculator for LEDs

Helps you calculate the required value of resistor for LEDs at your ease. Just enter the parameters and your results are ready.

2. Wire Size Calculator

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The wire size calculator will give you a very simple and quick solution to the problem of calculating the size of wires and cables for pump applications in golf courses, landscape projects, and agriculture.

3. 555 Timer

a) 555 Square Wave Calculator

b) IC 555 Timer Calculator

4. Battery/Appliance Operating Times Calculator

To estimate how long a battery/appliance combination will operate together, use this handy calculator.

5. Series Capacitor Calculator

Use this tool to find the value of up to 12 capacitors connected in series. Values of Zero or less and text characters are treated as Zero. Values to be inserted as μFarads

6. Parallel Resistors Calculator

Use this tool to find the value of up to 12 resistors connected in Parallel. Values of Zero or less and text characters are treated as Zero.

7. Parallel Inductor Calculator

Use this online calculator to determine the inductance of up to 8 inductors in parallel. Simply enter the inductance into the boxes below and click the CALCULATE button.

8. Ohm’s Law Calculator

Ohm’s law calculator calculates voltage / current / resistance / power.

9. Op-Amp Voltage and Gain Calculator

This calculator determines the output voltage and gain for an op-amp, given it’s resistor values, and DC input values.

10. Electrical Power Calculators

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The calculators here provide help to determine the size of generator required for your specific application. Also includes calculators for unit conversions and other power related calculations.


The writer is a senior correspondent at EFY, Gurgaon

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