Calculate Your PoE Power Budget and Troubleshoot Your Installation Free
Thank you using our PoE Calculator.
Please refer to your PoE Lighting and Automation Vendor’s Tools for Final Calculation
Let us help you calculate your PoE budget by Powered Device (PD) and for a Power Supplying Equipment (PSE).
Interpreting your Results:
Total PoE Budget: Tells you how big your overall power supply needs to be in watts
Cable Resistance: The resistance of the cable at the run length (mostly for info)
Line Loss per PD: Power lost per line to the PD
Remote PD Volts: What voltage you’ll have at the PD (compare to your PD specs)
Instructions for use:
Step 2 – Either select your cable type, our values match industry standard, or look it up yourself under the DCR of your cable and put it in the Alternate Ohms/1000 ft field.
Step 3 – Pick your voltage. You’ll want to check your datasheets for IEEE compliant products because they can range from 44 to 56 volts.
Step 4 – Find power consumption for your PD. You’ll normally find it in the datasheet like this one:
Step 6 – Add the number of devices like this you’ll be using.