Advanced Technical Tools Suite 2.0

A comprehensive collection of engineering and technical calculators with improved UI and documentation.

Electrical Circuit Calculator

About this Tool

  • Calculate various electrical parameters using Ohm's Law (V = IR).
  • Compute power (P = VI) based on voltage and current.
  • Decode resistor color codes to determine resistance and tolerance.
  • Ideal for quick circuit analysis and design checks.

How to Use

  1. Choose a calculator type (Ohm's Law or Resistor Code).
  2. Enter known values in the provided fields.
  3. Click "Calculate" to view results.
  4. For resistor codes, select band colors to decode values.

Radioactive Decay Calculator

About this Tool

  • Analyze how a radioactive substance decays over a given time span.
  • Generate data points showing the substance's remaining amount.
  • Visualize the decay curve with an optional chart.

How to Use

  1. Enter the initial amount of the substance.
  2. Provide the half-life (in chosen time units).
  3. Set the total time span and number of data points.
  4. Click "Calculate" to see the final amount and decay table.

Chmod Calculator

About this Tool

  • Determine file and directory permissions in numeric (octal) or symbolic format.
  • Configure read, write, and execute for owner, group, and others.
  • Enable special permissions like SUID, SGID, and Sticky Bit.

How to Use

  1. Check the boxes corresponding to the desired permissions.
  2. Optional: Select special permission bits (SUID, SGID, Sticky).
  3. View the resulting octal value, symbolic notation, and chmod command.
Owner Group Others
Read (4)
Write (2)
Execute (1)
000
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chmod 000 filename

IP Subnet Calculator

About this Tool

  • Analyze IPv4 addresses to determine network and broadcast addresses.
  • Convert between subnet mask formats (dotted-decimal and CIDR).
  • Identify usable host ranges and total available IP addresses.

How to Use

  1. Enter a valid IPv4 address (e.g., 192.168.1.1).
  2. Specify the subnet mask in dotted-decimal (255.255.255.0) or CIDR (/24).
  3. Click "Calculate" to reveal network information.

Wavelength/Frequency Converter

About this Tool

  • Convert between frequency (Hz) and wavelength (m) using the speed of light.
  • Use scientific notation for large or small results.
  • Quickly switch between conversion directions.

How to Use

  1. Select either "Frequency to Wavelength" or "Wavelength to Frequency".
  2. Enter the known value (frequency in Hz or wavelength in meters).
  3. Click "Convert" to see the result in the opposite domain.