Atmospheres to Pascals (atm → Pa)
Formula
1 atm = 101325 PaConversion Table
| atm | Pa |
|---|---|
| 0 | 0 |
| 1.0000 | 101,330 |
| 2.0000 | 202,650 |
| 3.0000 | 303,980 |
| 4.0000 | 405,300 |
| 5.0000 | 506,630 |
| 6.0000 | 607,950 |
| 7.0000 | 709,280 |
| 8.0000 | 810,600 |
| 9.0000 | 911,930 |
| 10.000 | 1,013,300 |
| 11.000 | 1,114,600 |
| 12.000 | 1,215,900 |
| 13.000 | 1,317,200 |
| 14.000 | 1,418,600 |
| 15.000 | 1,519,900 |
| 16.000 | 1,621,200 |
| 17.000 | 1,722,500 |
| 18.000 | 1,823,900 |
| 19.000 | 1,925,200 |
| atm | Pa |
|---|---|
| 20.000 | 2,026,500 |
| 21.000 | 2,127,800 |
| 22.000 | 2,229,200 |
| 23.000 | 2,330,500 |
| 24.000 | 2,431,800 |
| 25.000 | 2,533,100 |
| 26.000 | 2,634,500 |
| 27.000 | 2,735,800 |
| 28.000 | 2,837,100 |
| 29.000 | 2,938,400 |
| 30.000 | 3,039,800 |
| 31.000 | 3,141,100 |
| 32.000 | 3,242,400 |
| 33.000 | 3,343,700 |
| 34.000 | 3,445,100 |
| 35.000 | 3,546,400 |
| 36.000 | 3,647,700 |
| 37.000 | 3,749,000 |
| 38.000 | 3,850,400 |
| 39.000 | 3,951,700 |
| atm | Pa |
|---|---|
| 40.000 | 4,053,000 |
| 41.000 | 4,154,300 |
| 42.000 | 4,255,700 |
| 43.000 | 4,357,000 |
| 44.000 | 4,458,300 |
| 45.000 | 4,559,600 |
| 46.000 | 4,661,000 |
| 47.000 | 4,762,300 |
| 48.000 | 4,863,600 |
| 49.000 | 4,964,900 |
| 50.000 | 5,066,300 |
| 51.000 | 5,167,600 |
| 52.000 | 5,268,900 |
| 53.000 | 5,370,200 |
| 54.000 | 5,471,600 |
| 55.000 | 5,572,900 |
| 56.000 | 5,674,200 |
| 57.000 | 5,775,500 |
| 58.000 | 5,876,900 |
| 59.000 | 5,978,200 |
| atm | Pa |
|---|---|
| 60.000 | 6,079,500 |
| 61.000 | 6,180,800 |
| 62.000 | 6,282,200 |
| 63.000 | 6,383,500 |
| 64.000 | 6,484,800 |
| 65.000 | 6,586,100 |
| 66.000 | 6,687,500 |
| 67.000 | 6,788,800 |
| 68.000 | 6,890,100 |
| 69.000 | 6,991,400 |
| 70.000 | 7,092,800 |
| 71.000 | 7,194,100 |
| 72.000 | 7,295,400 |
| 73.000 | 7,396,700 |
| 74.000 | 7,498,100 |
| 75.000 | 7,599,400 |
| 76.000 | 7,700,700 |
| 77.000 | 7,802,000 |
| 78.000 | 7,903,400 |
| 79.000 | 8,004,700 |
Atmospheres to Pascals Conversion
Converting Atmospheres (atm) to Pascals (Pa) is a common pressure conversion. 1 atm equals 101,325 Pa. For example, 100 atm is equal to 10,132,500 Pa.
Quick Mental Math: Atmospheres to Pascals
1 atmosphere is about 101,325 pascals. For rough work, use 100,000.
Why is converting Atmospheres to Pascals tricky?
Atmospheres are close to bar, but not equal, which causes small but important errors.
Quick Reference Values
1 atm = 101,325 Pa. 2 atm = 202,650 Pa. 3 atm = 303,975 Pa. 5 atm = 506,625 Pa. 10 atm = 1,013,250 Pa. 20 atm = 2,026,500 Pa. 30 atm = 3,039,750 Pa.
What is Atmospheres?
Atmospheres (atm) is a unit of pressure. One atmosphere (atm) is a unit of pressure defined as exactly 101,325 pascals (Pa). It approximates the average air pressure at sea level on Earth. The atmosphere unit is used for expressing pressures in meteorology and engineering [iso-80000]. The atmosphere was originally defined in the 19th century based on average sea-level air pressure. It was standardized by the International Union of Pure and Applied Chemistry (IUPAC) and other bodies to equal 101,325 Pa in the mid-20th century [nist-sp-811]. Atmospheres are used worldwide in scientific fields, including chemistry and physics, and in engineering applications like pressure vessel design. It is less common in everyday use outside these fields [nist-sp-811].
What is Pascals?
Pascals (Pa) is a unit of pressure. The pascal (Pa) is the SI derived unit of pressure, defined as one newton per square meter (1 Pa = 1 N/m²). It quantifies force applied evenly over an area and is expressed as kg·m⁻¹·s⁻² in base SI units [bipm-si-brochure]. Named after Blaise Pascal, the pascal was adopted by BIPM in 1971 to replace older pressure units and standardize measurement in the SI system. It reflects the link between force and area in pressure measurements [bipm-si-brochure]. Pascals are the standard pressure unit in scientific research, meteorology, and engineering globally. Countries following SI, including members of ISO and NIST guidelines, use pascals for atmospheric and mechanical pressure [nist-si-guide].
Common Misspellings
People often search for this conversion using these alternate spellings: atmosphers, atmosfere, atmospere, atmospherics, pascal, pascals, pascel, pascall, pasceles. All of these refer to the Atmospheres to Pascals conversion.