Conduit Size Calculator

The Conduit Size Calculator helps users determine the minimum conduit size, conduit fill percentage, and total wire area needed based on specific conductor sizes, types, quantities, and conduit types.

Use Our Conduit Size Calculator

Step-by-Step Guide to Using the Conduit Size Calculator

Step 1: Select the Conductor Size

Start by choosing the appropriate conductor size for your electrical installation. Click on the dropdown menu labeled “Conductor Size (AWG/kcmil)” and select from the available options, including sizes such as 14 AWG, 12 AWG, 10 AWG, up to 4/0 AWG. Ensure that you select the size that matches your electrical wiring requirements.

Step 2: Choose the Conductor Type

Next, you need to select the type of conductor you are using. Under the “Conductor Type” dropdown, click to view the options, which include THHN, THWN, and XHHW. Select the conductor type that corresponds to the specifications provided by your project or installation guidelines.

Step 3: Enter the Number of Conductors

The calculator requires you to specify how many conductors will be present in the conduit. In the “Number of Conductors” input field, enter a numerical value between 1 and 20, using the specified step of 1. This number should reflect the total count of individual wires within your conduit.

Step 4: Select the Conduit Type

Proceed by selecting the type of conduit that you plan to use. Under “Conduit Type”, there are several options such as EMT, PVC (Schedule 40 and 80), and RMC. Choose the option that aligns with the type of conduit material suitable for your installation environment.

Step 5: Calculate the Results

Once all input fields are correctly filled, the calculator will automatically compute the necessary outputs. It will display:

  • Minimum Conduit Size: The smallest permissible size of the conduit needed, formatted to zero decimals and followed by ‘inches’.
  • Conduit Fill Percentage: The percentage of space filled within the conduit, formatted to one decimal place.
  • Total Wire Area: The combined cross-sectional area of all wires, expressed in square inches and formatted to two decimal places.

Conclusion

By carefully entering all the required details and selecting the appropriate options from the dropdown menus, this calculator aids in determining the right conduit size, fill percentage, and total wire area. Ensure that all information aligns with your specific electrical code requirements to maintain safety and functionality.