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Power Gain dB Calculator
Calculate power gain in decibels from input and output power.
📡 Free Online Tool
⚡ Instant Results
📊 Clear Comparison
🔒 100% Free Tool
Free Electronics Tool
Compare Your Options And Get Clear Answers
Calculate power gain in decibels from input and output power.
Power Gain dB Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: Gain in dB is 10 times the base 10 log of the power ratio.
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Power Quick Guide
Typical values for reference.
| Ratio | dB | Voltage Ratio | Note |
|---|---|---|---|
| 2x | 3.01 | 1.41 | Double |
| 10x | 10 | 3.16 | Ten |
| 100x | 20 | 10 | Hundred |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Power Gain dB Calculator FAQ
Answers to common questions about this calculator.
10 log of output over input.
It gives a quick estimate of power gain db from the values you enter.
No. It is a planning estimate, so check important figures with a professional or official source.
Yes. Edit any field and the result updates when you calculate.