Decibel Amplitude Ratio Calculator
Translate an amplitude gain in decibels to a linear multiplier.
Your inputs
Calculation results
Formula & assumptions
Amplitude multiplier = 10^(dB/20); assumes equal impedance.
Values use the specified units. Calculations use floating-point arithmetic. Check input measurements and formula assumptions before applying the result.
Compare your scenarios
Save up to five results to compare changes side by side. Scenarios stay in this tab until you clear or reload it.
Using Decibel Amplitude Ratio Calculator
Translate an amplitude gain in decibels to a linear multiplier.
- Enter gain, original amplitude using the units printed under each field.
- Choose Calculate, or enable live updates. Review the result labels and formula assumptions.
- Save scenarios to compare up to five variations, then copy the report or download JSON or CSV.
Example
Gain: 6 decibels Original amplitude: 0.25 linear units Amplitude multiplier: 1.9952623 New amplitude: 0.49881558 Power multiplier at equal impedance: 3.9810717
Questions & answers
What does Decibel Amplitude Ratio Calculator calculate?
Translate an amplitude gain in decibels to a linear multiplier.
Which units should I enter?
Gain uses decibels. Original amplitude uses linear units. Convert values to these units before calculating.
Which formula does it use?
Amplitude multiplier = 10^(dB/20); assumes equal impedance.
What does the included example show?
Gain: 6 decibels; Original amplitude: 0.25 linear units. Result: Amplitude multiplier = 1.9952623; New amplitude = 0.49881558; Power multiplier at equal impedance = 3.9810717.
Can I compare different settings?
Yes. Save a scenario, change the inputs and save another result. Up to five scenarios are compared in this tab; they disappear when you reload or leave.
Can I export the calculation?
Copy the JSON report or download JSON and CSV with inputs, result labels and numeric values. Processing uses local JavaScript; no calculation request is sent to our server. Displayed values use up to 10 significant digits; exports retain JavaScript numeric precision.
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