Standard Atmospheres to Kilopascals Converter
1 standard atmosphere = 101.325 kilopascals
1 standard atmosphere equals 101.325 kilopascals
How to convert standard atmospheres to kilopascals
Unit conversion preserves the pressure reference. Gauge pressure and absolute pressure are different readings; changing between them also needs the ambient pressure. Mercury and water-column units use the conventions stated in their unit notes.
kPa = atm × 101.325One standard atmosphere is 101.325 kilopascals, so a single multiplication converts any value.
1,013.25 kPa = 10 × 101.325Standard atmospheres to kilopascals conversion table
Common values in standard atmospheres, converted to kilopascals.
| Standard atmospheres (atm) | Kilopascals (kPa) |
|---|---|
| 1 | 101.325 |
| 2 | 202.65 |
| 3 | 303.975 |
| 4 | 405.3 |
| 5 | 506.625 |
| 10 | 1,013.25 |
| 20 | 2,026.5 |
| 25 | 2,533.125 |
| 50 | 5,066.25 |
| 100 | 10,132.5 |
| 250 | 25,331.25 |
| 500 | 50,662.5 |
| 1,000 | 101,325 |
About these units
standard atmosphereatm
Exactly 101,325 pascals, the defined standard sea-level pressure.
Reference: CGPM 1954.
kilopascalkPa
One thousand pascals. The metric standard for tyre pressure.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.