1 standard atmosphere equals 101325 pascals. To convert standard atmospheres to pascals, multiply the standard atmosphere value by 101325. For quick reference: 1 atm = 101325 Pa, 5 atm = 506625 Pa, 10 atm = 1013250 Pa, 100 atm = 10132500 Pa.
FormulaPascals = Standard atmospheres × 101325
Quick
How to convert standard atmospheres to pascals
1
Take your value
Start with your value in standard atmospheres.
2
Multiply by 101325
Multiply the standard atmosphere value by 101325. This is the exact conversion factor from standard atmospheres to pascals.
3
Read the result
The product is your value in pascals. For example, 5 atm × 101325 = 506625 Pa.
Conversion formula
The exact factor from standard atmospheres to pascals is 101325.
Pascals = Standard atmospheres × 101325
Standard atmospheres to Pascals conversion table
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
Conversion table from standard atmospheres to pascals
Standard atmospheres (atm)
Pascals (Pa)
0.001 atm
101.33 Pa
0.01 atm
1013.3 Pa
0.1 atm
10133 Pa
0.5 atm
50663 Pa
1 atm
101325 Pa
1.5 atm
151988 Pa
2 atm
202650 Pa
2.5 atm
253313 Pa
3 atm
303975 Pa
4 atm
405300 Pa
5 atm
506625 Pa
6 atm
607950 Pa
7 atm
709275 Pa
8 atm
810600 Pa
9 atm
911925 Pa
10 atm
1013250 Pa
14 atm
1418550 Pa
15 atm
1519875 Pa
20 atm
2026500 Pa
25 atm
2533125 Pa
30 atm
3039750 Pa
32 atm
3242400 Pa
35 atm
3546375 Pa
40 atm
4053000 Pa
50 atm
5066250 Pa
60 atm
6079500 Pa
75 atm
7599375 Pa
80 atm
8106000 Pa
100 atm
10132500 Pa
101.325 atm
10266756 Pa
150 atm
15198750 Pa
200 atm
20265000 Pa
250 atm
25331250 Pa
300 atm
30397500 Pa
400 atm
40530000 Pa
500 atm
50662500 Pa
760 atm
77007000 Pa
1000 atm
101325000 Pa
1013.25 atm
102667556 Pa
2000 atm
202650000 Pa
5000 atm
506625000 Pa
10000 atm
1013250000 Pa
14.7 atm
1489478 Pa
50000 atm
5066250000 Pa
100000 atm
10132500000 Pa
101325 atm
10266755625 Pa
200000 atm
20265000000 Pa
500000 atm
50662500000 Pa
1000000 atm
101325000000 Pa
10000000 atm
1013250000000 Pa
Real-world reference
Earth's mean sea-level pressure is approximately 1 atm. Pressure doubles roughly every 10 m of seawater. In pascals, that gives you: 1 atm = 101325 Pa, 10 atm = 1013250 Pa, 100 atm = 10132500 Pa.
Frequently asked questions
How many pascals are in 1 standard atmosphere?
1 standard atmosphere equals 101325 pascals.
How do I convert standard atmospheres to pascals?
Multiply the standard atmosphere value by 101325. So x atm × 101325 = the equivalent in Pa.
What is 5 standard atmospheres in pascals?
5 standard atmospheres equals 506625 pascals.
What is 10 standard atmospheres in pascals?
10 standard atmospheres equals 1013250 pascals.
What is 100 standard atmospheres in pascals?
100 standard atmospheres equals 10132500 pascals.
How do I convert back from pascals to standard atmospheres?
Multiply the pascal value by 9.8692 × 10^−6. For example, 1 Pa = 9.8692 × 10^−6 atm.
Is the standard atmosphere bigger than the pascal?
Yes. 1 standard atmosphere is larger than 1 pascal — specifically 101325 times larger.
Are these conversion factors exact?
Yes. The factor of 101325 is derived directly from the SI definitions of standard atmosphere and pascal.
About the standard atmosphere and the pascal
The standard atmosphere
The standard atmosphere (atm) is defined as exactly 101,325 Pa. It is the conventional reference for chemistry (gas-law calculations), aviation altimetry, and historic engineering. Despite the name, it is not the actual atmospheric pressure at any single place — that varies daily.
The pascal
The pascal (Pa) is the SI derived unit of pressure, defined as one newton per square meter. It is the universal unit in physics and engineering documentation. In everyday life pascals are tiny — atmospheric pressure is around 101,000 Pa — so multiples like kPa and MPa dominate practical use.