dBm to Watts Converter
Convert dBm to watts quickly for RF and electronics work.
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Data Source and Methodology
All calculations are rigorously based on the formulas and data provided by the authoritative resource available at Everything RF.
The Formula Explained
The formula used for conversion is:
Watts = 10^(dBm/10) / 1000
Glossary of Terms
- dBm: A unit of power level expressed in decibels relative to 1 milliwatt.
- Watts: The SI unit of power, equivalent to one joule per second.
How It Works: A Step-by-Step Example
For example, if you have a power level of 30 dBm, you can convert it to Watts using the formula:
Watts = 10^(30/10) / 1000 = 1 W
Frequently Asked Questions (FAQ)
What is dBm?
dBm is a unit of power level in decibels, referenced to one milliwatt. It is commonly used in telecommunications and radio broadcasting.
How do I convert dBm to Watts?
You can convert dBm to Watts using the formula: Watts = 10^(dBm/10) / 1000.
Why use dBm instead of Watts?
dBm is often used because it can represent both very small and very large values conveniently due to its logarithmic nature.
What is the typical range of dBm values?
The dBm value can range from very negative values in low-power applications to positive values in high-power scenarios.
Are there any tools to convert between dBm and Watts?
Yes, our interactive calculator provides an easy way to convert between dBm and Watts.
Formula (LaTeX) + variables + units
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Watts = 10^(dBm/10) / 1000
- No variables provided in audit spec.
- Everything RF — everythingrf.com · Accessed 2026-01-19
https://www.everythingrf.com/rf-calculators/dbm-to-watts
Last code update: 2026-01-19
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