📏 Atmospheres to PSI Converter
Convert atmospheres (atm) to psi (psi) instantly, with the formula, a worked example and a conversion table.
Quick answer: 1 atmosphere (atm) = 14.695949 psi (psi). Formula: psi = atm × 14.695949.
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Atmospheres to PSI Converter inputs
Result
Atmospheres to PSI conversion table
| Atmospheres (atm) | PSI (psi) |
|---|---|
| 0.1 atm | 1.4695949 psi |
| 0.5 atm | 7.3479744 psi |
| 1 atm | 14.695949 psi |
| 2 atm | 29.391898 psi |
| 3 atm | 44.087846 psi |
| 5 atm | 73.479744 psi |
| 10 atm | 146.95949 psi |
| 20 atm | 293.91898 psi |
| 25 atm | 367.39872 psi |
| 50 atm | 734.79744 psi |
| 100 atm | 1,469.5949 psi |
| 1,000 atm | 14,695.949 psi |
Other pressure conversions
How to convert atmospheres to psi
Multiply the number of atmospheres by 14.695949 to get psi: psi = atm × 14.695949.
Example: 5 atm = 73.479744 psi.
The atmosphere (atm) and the pound per square inch (psi) are both units of pressure. Need the opposite direction? Use the psi to atm converter.
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Metric and imperial units
The metric system (SI) is used by almost every country and by science worldwide. Its units scale by powers of ten – 1 kilometer is 1,000 meters, 1 meter is 100 centimeters – which makes conversions inside the system easy. The imperial and US customary systems (inches, feet, pounds, gallons) are still used daily in the United States and partly in the UK.
Since 1959 the inch has been defined as exactly 2.54 centimeters and the pound as exactly 0.45359237 kilograms, so conversions between the two systems are exact. Note that a US gallon (3.785 L) and an imperial gallon (4.546 L) are different – choose the right one above.
This converter covers 10 categories and 66 units: length, weight, temperature, volume, area, speed, time, data, energy, pressure.
Frequently asked questions
How many psi are in a atmosphere?
1 atmosphere = 14.695949 psi.
How do I convert atmospheres to psi?
Use the formula psi = atm × 14.695949. For example, 5 atm = 73.479744 psi.
How do I convert psi back to atmospheres?
1 pound per square inch = 0.068045964 atmospheres. Use the psi to atm converter linked on this page.
Are these conversions exact?
Yes – all factors use the internationally defined values (for example 1 inch = 2.54 cm exactly, 1 pound = 0.45359237 kg exactly). Results are rounded to 8 significant digits for display.