Wireless Power Budget Calculator
Model your transmit-side wireless power budget in dBm: start from radio output power, subtract coax and connector losses, and add antenna gain for ERP / EIRP-style planning. Use this page when you need a dedicated URL and copy for RF link budget, dBm, and antenna gain keywords.
Power Budget Wireless Calculator — Total power of your system in dBm
- PLUS Radio Transmit Power
- MINUS cables and connectors losses
- PLUS antenna gain
Enter one parameter in each column (or leave blank) depending on what is know and the calculator will supply the appropriate conversions automatically. Up to 2 decimal places may be entered as 0.xx or .xx.
Note: Connector loss is generally minimal unless you have many of them or if your cable is very short.
See the calculations and equations used for this wireless calculator.
Power Budget Calculations
- mW to dBm = 10Log10(mW)
- feet to meters = .3048
- meters to feet = 3.28
- Calculator normalises all distances to kilometers and meters
- Connectors loss = 0.10 * square root (frequency in GHz)
Disclaimer: Due to the nature of radio frequency propagation and the numerous factors that can affect operating range we do not guarantee that you will achieve any specific range for your application. These wireless calculators are for estimation purposes only. L-com does not guarantee their accuracy or applicability. L-com cannot be held liable for wireless installations based on these tools. Customers should use these tools at their own risk. After you are finished on this page, please visit our line-up of wireless antennas.
