Pa to PSI Converter
The stored rounded coefficient for one pound per square inch is 6,894.757293168 pascals, so pascals to psi is a single division: psi = Pa / 6,894.757293168, which makes 1 Pa display as 0.00014503773773 psi. The pascal is a small unit, one newton on a square metre, so everyday pressures land on familiar psi figures only once the pascal count is large: 100,000 Pa (one bar) is 14.503773773 psi, 101,325 Pa (one standard atmosphere) is 14.6959487755 psi, and 1,000,000 Pa (one megapascal) is 145.03773773 psi. The factor itself is defined rather than measured, since a pound is exactly 0.45359237 kg, standard gravity is exactly 9.80665 m/s² and an inch is exactly 0.0254 m, which puts one psi at approximately 6,894.75729316836 Pa, a nonterminating decimal. This converter stores thirteen significant figures of it and prints twelve of the answer. The page opens with pascals in the From box and psi in the To box, whatever pair you converted last, and lists the same pressure in kilopascals, bar, psi and atmospheres under the answer, with millimetres of mercury behind the uncommon units switch.
- Category
- Pressure
- Base unit
- pascal
- Uncommon units
One standard atmosphere is 101,325 Pa. mmHg is the conventional 133.322387415 Pa, distinct from the torr (exactly 101,325/760 Pa). The psi coefficient is rounded to 6,894.757293168 Pa. Converting units preserves gauge or absolute reference; it does not add ambient pressure.
Results round to 12 significant digits using the listed unit definitions. Input must have a finite numeric magnitude and at most 512 significant digits. Type a single decimal or scientific number; a matching From unit suffix is accepted. Commas and grouped spaces separate thousands; decimal commas, fractions and compound measurements are refused.
1 Pa in every pressure unit
Selectable complete conversion
Common questions
- How many psi is 1 Pa?
- 0.00014503773773 psi, which is 1 / 6,894.757293168. The pascal is small enough that the answer only grows into everyday numbers by the thousand: 100 Pa is 0.014503773773 psi, 1,000 Pa is 0.14503773773 psi, 10,000 Pa is 1.4503773773 psi, 100,000 Pa is 14.503773773 psi and 1,000,000 Pa is 145.03773773 psi. Type any of them in the From box and the headline updates as you type.
- What is the formula for Pa to psi?
- This converter uses psi = Pa / 6,894.757293168, with the stored thirteen-significant-digit rounded Pa-per-psi coefficient. The reciprocal 0.00014503773773 is a rounded twelve-significant-digit display, so multiplying by that decimal is a further approximation. In reverse, Pa = psi × 6,894.757293168 using the stored coefficient: 30 psi displays as 206,842.718795 Pa, 32 psi as 220,632.233381 Pa and 100 psi as 689,475.729317 Pa. Swap units reverses the pair.
- Is the Pa to psi conversion exact?
- The unit definition is exact: one pound-force is 0.45359237 kg × 9.80665 m/s² = 4.4482216152605 N, and one square inch is 0.0254² m² = 0.00064516 m². Their quotient is the exact Pa-per-psi factor, with a nonterminating decimal approximately 6,894.75729316836. This converter uses its rounded thirteen-significant-digit coefficient 6,894.757293168 and rounds results to twelve significant digits. Those are two distinct rounding steps; a last displayed digit can depend on a boundary. One Pa displays as 0.00014503773773 psi.
- What is 200,000 Pa in psi?
- 200,000 Pa displays as 29.007547546 psi, with 200 kPa, 2 bar and 1.97384653343 atm in the other common rows. Supplied examples of 250,000 Pa and 300,000 Pa display as 36.2594344326 psi and 43.5113213191 psi. The converter preserves the supplied pressure reference; it does not change gauge pressure into absolute pressure. To derive absolute pressure separately, add a supplied ambient pressure to the signed gauge quantity in matching units. A standard atmosphere is a defined unit, not the current ambient pressure.
- Is 100 Pa the same as 100 kPa?
- No. One kilopascal is exactly 1,000 Pa: 100 kPa is 100,000 Pa and displays as 14.503773773 psi, while 100 Pa displays as 0.014503773773 psi. A supplied 220 kPa quantity is 220,000 Pa and displays as 31.9083023006 psi. A supplied 1,013 hPa is 101,300 Pa and displays as 14.6923228321 psi. Hectopascal has no menu entry, so multiply its supplied value by 100 separately. Kilopascal is in both menus.
- What is atmospheric pressure in Pa and psi?
- One standard atmosphere is defined as exactly 101,325 Pa, which this page converts to 14.6959487755 psi, the number usually quoted as 14.7 psi. Type 101325 and the rows under the answer read 101.325 kPa, 1.01325 bar and exactly 1 atm, with 759.999891726 mmHg once the Show 1 more switch is on. The millimetre of mercury here is the conventional mmHg of 133.322387415 Pa, a hair larger than a torr, which is why the reading is not a round 760.
- Why did my answer come back as 1.450377e-7?
- Displayed magnitudes below 0.000001 use exponential notation: 0.001 Pa now displays as 1.4503773773e-7 psi, while 0.1 Pa is 0.000014503773773 psi. The field accepts scientific notation such as 1e5 for 100,000 Pa. Copy result copies the displayed headline without digit-grouping commas; each visible conversion row has its own Copy button. Displayed and copied values round to twelve significant digits. If native copying fails, a complete selectable summary identifies the input, selected pair and conventions and includes every unit in the category, including uncommon units.
- Why does the page open on pascals and psi when I last converted something else?
- This focused page opens on Pascal (Pa) to Pound per square inch (psi), while preserving the main converter’s saved unit pair. When storage is usable, a saved value and uncommon-unit preference can travel between pages. Its suffix must still match From. Valid deliberate scalar edits can save those fields after a short delay; invalid or incomplete drafts preserve the saved record. Unusable or conflicting records remain until you use Forget saved settings, which keeps the current conversion on screen. Your input and converted values are calculated in the browser and are not uploaded by the converter. The definitions arrive with the page, so conversion needs no external data lookup and keeps working offline after the page has loaded. The core conversion needs no account.
Results round to 12 significant digits using the listed unit conventions. Many factors are exact definitions; psi and parsec use rounded coefficients. Temperature includes scale offsets. Days and weeks are fixed-duration units, and unit conversion does not determine calendar dates, ambient pressure or a software label’s convention.