What is dBm to watts conversion calculator?

dBm to Watts conversion calculator converts the power value in dBm to Watts value. Watt (W) is a SI unit for measuring the power and dBm is a decibel unit for measuring the power.

How to calculate power (in watt) for the given dBm?

The following formula is used to calculate the power value (in W) for a given dBm value.

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.

The benefit of expressing signal strength (power) in dBm is: we can express both very large and very small power values (W) by a convenient 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.