Aisha K.
Mar 12, 2026
Clean layout and the results update instantly. Exactly what I needed for a quick planning check.
Unit Converters
Atmospheres to Pascals Converter
Atmospheres
atm → Pa
101,325 Pa
1 atm → 101,325 Pa. 10 atm → 1.013 MPa.
- You typed
- 1 atm
- One Pa is
- 9.8692e-6 atm
- How it’s calculated
- Pa = atm × 101,325.
Atmospheres to Pascals conversion table
Common atm values in Pa. Same factor as the converter above: Pa = atm × 101,325.
| Atmospheres | Pascals |
|---|---|
| 0 atm | 25,331 Pa |
| 1 atm | 50,663 Pa |
| 1 atm | 101,325 Pa |
| 2 atm | 202,650 Pa |
| 5 atm | 506,625 Pa |
| 10 atm | 1,013,250 Pa |
| 20 atm | 2,026,500 Pa |
| 25 atm | 2,533,125 Pa |
| 50 atm | 5,066,250 Pa |
| 100 atm | 10,132,500 Pa |
Plain-English guide
Terms & how it works
Confused by a field? Read the short definitions here while you use the tool.
Atmospheres
The “Atmospheres” value used in this tool’s formula. Adjust it to see results update live.
Pa = atm × 101,325.
Standard atmosphere is 101,325 Pa by definition. Chemistry problems still say “2 atm.” Multiply. 2 atm is 202,650 Pa or 2.026 bar. Weather “1013 mbar” is about 1 atm, not exactly unless you like rounding.
How this calculator works
Standard atmosphere is 101,325 Pa by definition. Chemistry problems still say “2 atm.” Multiply. 2 atm is 202,650 Pa or 2.026 bar. Weather “1013 mbar” is about 1 atm, not exactly unless you like rounding. Pa = atm × 101,325. Scenario: 1 atm → 101,325 Pa. 10 atm → 1.013 MPa.
Pa = atm × 101,325.
Scenario: 1 atm → 101,325 Pa. 10 atm → 1.013 MPa.
When to use this Atmospheres to Pascals
Common use cases
- Standard atmosphere is 101,325 Pa by definition. Chemistry problems still say “2 atm.” Multiply. 2 atm is 202,650 Pa or 2.026 bar. Weather “1013 mbar” is about 1 atm, not exactly unless you like rounding.
- Sanity-check with this scenario: 1 atm → 101,325 Pa. 10 atm → 1.013 MPa.
- The relationship is: Pa = atm × 101,325.
Localized examples
- Unit Converters: the example on this page uses the same formula as the widget.
What you get
- Fields: Atmospheres
- Pa = atm × 101,325.
- Scenario on the page: 1 atm → 101,325 Pa. 10 atm → 1.013 MPa.
How to Convert Atmospheres to Pascals
- 1Enter Atmospheres. Use the values you have, not a catalog average, unless that is all you know.
- 2Pa = atm × 101,325.
- 3Scenario: 1 atm → 101,325 Pa. 10 atm → 1.013 MPa.
- 4Check which dictionary the other person is using — US or UK, decimal or 1,024 — then trust the number.
Governing formula
Pa = atm × 101,325.
1 atm → 101,325 Pa. 10 atm → 1.013 MPa.
1 atm → 101,325 Pa. 10 atm → 1.013 MPa.
Variable definitions
- value
Atmospheres
The “Atmospheres” field. Default 1; typical range 0–1000.
- The conversion (Pa = atm × 101,325.) does not pick US vs UK gallons, SI vs binary megabytes, or Mach at altitude for you. Read the footnote on the page.
- Nothing here is uploaded for the calculation itself.
Frequently Asked Questions
Older 1 at = 1 kgf/cm² = 98,066.5 Pa. This page is the standard atm.
Related calculators
Unit Converters
- Hectopascals to PascalsWeather: 1 hPa = 100 Pa = 1 millibar. Standard sea-level 1013.25 hPa is 101,325 Pa. A 850 hPa pressure surface is 85,000 Pa. METAR “Q1013” is this unit.
- Pascals to PSIDivide pascals by 6,894.76. Atmospheric pressure 101,325 Pa is 14.70 psi. Tire stickers in kPa: 220 kPa is 220,000 Pa ≈ 31.9 psi. Do not put 220 in this box and call it 220 Pa.
- SI Pascal Prefix ConverterWeather maps print hectopascals (same size as millibars). Tires in kilopascals. Hydraulics in megapascals. Material moduli in gigapascals. Standard atmosphere is 101,325 Pa = 101.325 kPa = 1,013.25 hPa.
- Torr to Pascals1 torr is 1/760 of a standard atmosphere = 101325/760 Pa ≈ 133.322 Pa. Vacuum gauges and older blood-pressure talk still say mmHg; torr and mmHg are treated as equal for this page. 760 torr is 101,325 Pa.
- Acres to HectaresUS farm ads in acres, EU paperwork in hectares. Divide acres by 2.471. Ten acres is 4.05 ha. A 160-acre quarter-section is 64.7 ha.
- Acres to Square FeetUS land: one acre is 43,560 ft², a chain-and-furlong leftover that refused to die. A quarter-acre lot is 10,890 ft². Multiply acres by 43,560. Soccer-field metaphors are not a survey.
Get a note when we add a planner
Occasional email when something new is worth opening. We never share your address. Unsubscribe anytime.
Discover & search
Explore More Tools
Related tools in Unit Converters — strengthening topical internal links.
Same category · 3 tools
Browse all →Meters to Kilometers
Unit Converters
A 5K is 5,000 meters, not 5 kilometers on the nose if your watch is sloppy. Divide meters by 1,000. Track races, building plans, and “how far was that hike” all live in this split.
Feet to Meters
Unit Converters
US height, ceiling height, and lumber still arrive in feet. Meter plans do not. One foot is exactly 0.3048 m — not “about a third.” Use this when a listing says 10 ft ceilings and the architect works in meters.
Inches to Centimeters
Unit Converters
Monitor diagonals, waist measurements, and photo prints still come in inches. Clothing charts in Europe come in cm. Multiply inches by 2.54. That factor is exact, not a kitchen guess.
Community
Reviews & Ratings
See what others think about this tool, then leave your own rating to help improve CalculioHub.
4.8
out of 5.0
4 reviews
Daniel R.
Feb 28, 2026
Very usable on mobile. Would love a save/export option later, but the math feels solid.
Priya S.
Feb 3, 2026
The FAQ section answered my questions before I even had to search. Smooth dark mode too.
Marcus L.
Jan 19, 2026
Simple inputs, clear outputs. This replaced three bookmarks I used to juggle.
Improve this tool
Suggestion Box
Share an idea, report a bug, or send general feedback for Atmospheres to Pascals. Your input helps shape what we build next.