Enter a value in Watts and click on calculate to get the dBm value
Power in dBm: 0 dBm
Watt To dBm Conversion Table
What is Watts to dBm conversion calculator?
Watts to dBm conversion calculator converts the power value in Watts to dBm value. Watt (W) is a SI unit for measuring the power, and dBm stands for decibel-milliwatts, which is a decibel unit for measuring the power.
How to calculate power (in dBm) for the given watts?
The following formula is used to determine the power value (in dBm unit) for a given power level in Watt (W).
dBm stands for decibel-milliwatts; is a dimensionless unit used to define/measure signal strength (power level), with reference to 1 milliwatt. (i.e., the power level of 0dBm represents 1milliwatt). The dBm is a convenient unit; used in radio, microwave, audio applications, and fiber-optical communications networks to measure signal strength.
Signal’s power level lower than 1 mW has negative dBm values, and the signals stronger than 1 mW have positive dBm values.
The benefit of expressing signal strength (power) in dBm is: we can express both very large and very small power values (W) in a short range of number. For example, 5 mW is equal to 7 dBm, and 100 KW is equal to 80 dBm. Also, the decibel unit representation simplifies the multiplication and division operation into addition and subtraction.