Decibel-milliwatts (dBm) to Metric horsepower (PS) Conversion
Decibel-milliwatts
The decibel-milliwatt (dBm) is a unit of power expressed on a logarithmic scale relative to one milliwatt (1 mW). It is defined as dBm = 10 × log₁₀(P / 1 mW), where P is power in milliwatts. Used universally in RF engineering, telecommunications, and audio systems: Wi-Fi signal strength is expressed in dBm (typical values −30 to −90 dBm); a 0 dBm signal equals 1 mW; 30 dBm equals 1 W; −10 dBm equals 0.1 mW. Note: dBm cannot be converted with a simple multiplier — it requires the logarithmic formula.
Metric horsepower
Metric horsepower (PS, from German Pferdestärke; CV in French, Spanish, and Portuguese) is a unit of power equal to exactly 735.49875 watts — approximately 1.4% less than the US mechanical horsepower (745.7 W). It is the standard for vehicle engine power ratings in continental Europe, and appears in EU type approval certificates. A car rated at 200 PS produces 147.1 kW, while a car rated at 200 US hp produces 149.1 kW — a distinction that matters in precise international performance comparisons.
| Decibel-milliwatts (dBm) | Metric horsepower (PS) |
|---|---|
| 0.1 dBm | 0.00000139 PS |
| 1 dBm | 0.00000171 PS |
| 2 dBm | 0.00000215 PS |
| 3 dBm | 0.00000271 PS |
| 5 dBm | 0.0000043 PS |
| 10 dBm | 0.0000136 PS |
| 20 dBm | 0.000136 PS |
| 30 dBm | 0.00136 PS |
| 50 dBm | 0.136 PS |
| 100 dBm | 13,596.2162 PS |
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How accurate are the conversion values?
All conversion factors are sourced from NIST (National Institute of Standards and Technology) and ISO 80000 international standards. They are exact where the standard defines them as exact.