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Speed of Sound in Dry Air Calculator — result sheet
Estimate the speed of sound in dry air from temperature using a stated near-room-temperature approximation.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: Approximate dry-air sound speed c = 331.3 + 0.606 × temperature in °C.
Temperature is the visible input because it strongly affects the familiar dry-air approximation. The page labels the output as approximate and does not present it as a full atmospheric propagation model.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Air temperature — °C; minimum -100; maximum 1000
Worked example
| Input | Value |
|---|---|
| Air temperature | 20 |
At 20 °C, the approximation gives 343.42 m/s, or 1,236.312 km/h; 1 km takes about 2.911 seconds.
Assumptions and limits
- The medium is treated as dry air near ordinary atmospheric conditions.
- Temperature is supplied in degrees Celsius.
- The linear approximation is used over the displayed input range.
- Humidity, pressure, composition, altitude, wind, and acoustic refraction are not modeled.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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