How many pascals are in 1 bar?

Exactly 100,000 Pa, because the bar is defined as one hundred thousand pascals rather than measured against anything. The rest is a decimal shift: 0.5 bar is 50,000 Pa, 1.5 bar is 150,000 Pa, 2.2 bar is 220,000 Pa, 6 bar is 600,000 Pa and 200 bar is 20,000,000 Pa. The headline prints the figure with thousands separators, and the Copy result button puts it on the clipboard without them, as 100000.

What is the formula for bar to Pa?

Pascals = bar × 100,000; bar = pascals / 100,000 in the reverse direction. Thus 1 Pa is exactly 0.00001 bar and 101,325 Pa is exactly 1.01325 bar. Use a point for decimals. Properly grouped thousands such as 1,234.5 are accepted as 1234.5, while 1,5 is refused as a decimal comma. A matching suffix such as 2.2 bar is accepted. Swap units reverses the pair while keeping the input value, so it converts that value in the new direction.

Is the bar to pascal conversion exact?

The factor is exact: 1 bar is defined as 100,000 Pa. The converter calculates from the written decimal and rounds the display to twelve significant digits; an input with more digits can therefore produce a rounded display despite the exact factor. The example 1.013 bar = 101,300 Pa is exact. The psi row uses the stated rounded coefficient of 6,894.757293168 Pa per psi rather than an exact terminating definition.

What is 1 bar in kPa, psi and atm?

100 kPa, 14.503773773 psi and 0.986923266716 atm. You do not have to ask for them one at a time, because the converter works out every unit in the pressure category at once, so all three sit in the list under the pascal answer as soon as you type. Millimetres of mercury stay hidden until you turn on the uncommon units switch in the readout strip, labelled Show 1 more, where 1 bar reads 750.061575846 mmHg.

Is one bar the same as one atmosphere?

No, one bar is about 1.3 percent short of it. A standard atmosphere is defined as exactly 101,325 Pa, so one bar is 0.986923266716 atm and one atmosphere is 1.01325 bar. Put 1.01325 in the From box with bar selected and the answer reads 101,325 Pa, with exactly 1 atm in the list below it. The two units are close enough to swap in casual talk and far enough apart to matter on a calibrated gauge.

How do I convert millibars or hectopascals here?

Divide by a thousand and enter the result as bar, since millibars and hectopascals are not separate entries in this list. One millibar is one hectopascal is 100 pascals, so 0.001 bar reads 100 Pa, and a sea level reading of 1,013.25 mbar is 1.01325 bar, which comes out as 101,325 Pa. Going the other way, divide the pascal answer by 100 to read it in hectopascals.

What is 200 bar in pascals and megapascals?

20,000,000 Pa, which is 20 MPa. Megapascals are not in the list either, so take the pascal figure and divide by a million: 1 bar is 0.1 MPa, 10 bar is 1 MPa, and a 200 bar diving cylinder or hydraulic line is 20 MPa. The same 200 bar also shows as 20,000 kPa, 2,900.7547546 psi and 197.384653343 atm in the list under the answer.

Does it know whether my reading is gauge or absolute?

It changes units while preserving the pressure reference and never adds ambient pressure. A gauge reading of 2.2 bar is 220,000 Pa above ambient. Assuming ambient pressure is exactly one standard atmosphere (1.01325 bar), the corresponding absolute pressure is 3.21325 bar or 321,325 Pa. Actual ambient pressure can differ; converting the unit alone does not determine it.

Why does the page open on bar and pascals when I last converted something else?

A focused page opens on its named pair, so this one selects bar and pascals while preserving the main converter’s saved pair. When browser storage is usable, the last saved valid value and uncommon-unit preference can travel between pages. Valid deliberate edits can save those fields; invalid drafts do not overwrite the saved record. Unusable or conflicting settings are kept with an explanation until you use Forget saved settings, which keeps the current on-screen conversion.

Bar to Pa Converter

The bar is defined as exactly 100,000 pascals, so bar to Pa is one multiplication, or a decimal point moved five places to the right: 1 bar is 100,000 Pa, 0.5 bar is 50,000 Pa, 2.2 bar is 220,000 Pa and a 200 bar diving cylinder is 20,000,000 Pa. A pascal is one newton spread over a square metre, a small unit next to a tyre or a cylinder, which is why pressures in bar turn into six and seven digit pascal figures. The scaling factor is a power of ten fixed by definition. Answers still round to twelve significant digits for display, so sufficiently long inputs are not shown in full. The written value 1.013 bar converts exactly to 101,300 Pa. This page opens the converter with bar in the From box and pascals in the To box, ahead of whatever pair you converted last, and lists the same pressure in pascals, kilopascals, pounds per square inch and atmospheres under the answer.

From

To100,000

Category: Pressure

Base unit: pascal

Uncommon units: Show 1 more

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 bar in every pressure unit

PascalPa
100,000
KilopascalkPa
100
Pound per square inchpsi
14.503773773
Atmosphereatm
0.986923266716

Selectable complete conversion

Unit Converter — Pressure
Input: 1 (Bar, bar)
Result: 100000 Pa (Pascal)
Displayed values round to 12 significant digits.
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.
All other units:
Pascal (Pa): 100000
Kilopascal (kPa): 100
Pound per square inch (psi): 14.503773773
Atmosphere (atm): 0.986923266716
Millimeter of mercury (mmHg): 750.061575846

Common questions

How many pascals are in 1 bar?: Exactly 100,000 Pa, because the bar is defined as one hundred thousand pascals rather than measured against anything. The rest is a decimal shift: 0.5 bar is 50,000 Pa, 1.5 bar is 150,000 Pa, 2.2 bar is 220,000 Pa, 6 bar is 600,000 Pa and 200 bar is 20,000,000 Pa. The headline prints the figure with thousands separators, and the Copy result button puts it on the clipboard without them, as 100000.
What is the formula for bar to Pa?: Pascals = bar × 100,000; bar = pascals / 100,000 in the reverse direction. Thus 1 Pa is exactly 0.00001 bar and 101,325 Pa is exactly 1.01325 bar. Use a point for decimals. Properly grouped thousands such as 1,234.5 are accepted as 1234.5, while 1,5 is refused as a decimal comma. A matching suffix such as 2.2 bar is accepted. Swap units reverses the pair while keeping the input value, so it converts that value in the new direction.
Is the bar to pascal conversion exact?: The factor is exact: 1 bar is defined as 100,000 Pa. The converter calculates from the written decimal and rounds the display to twelve significant digits; an input with more digits can therefore produce a rounded display despite the exact factor. The example 1.013 bar = 101,300 Pa is exact. The psi row uses the stated rounded coefficient of 6,894.757293168 Pa per psi rather than an exact terminating definition.
What is 1 bar in kPa, psi and atm?: 100 kPa, 14.503773773 psi and 0.986923266716 atm. You do not have to ask for them one at a time, because the converter works out every unit in the pressure category at once, so all three sit in the list under the pascal answer as soon as you type. Millimetres of mercury stay hidden until you turn on the uncommon units switch in the readout strip, labelled Show 1 more, where 1 bar reads 750.061575846 mmHg.
Is one bar the same as one atmosphere?: No, one bar is about 1.3 percent short of it. A standard atmosphere is defined as exactly 101,325 Pa, so one bar is 0.986923266716 atm and one atmosphere is 1.01325 bar. Put 1.01325 in the From box with bar selected and the answer reads 101,325 Pa, with exactly 1 atm in the list below it. The two units are close enough to swap in casual talk and far enough apart to matter on a calibrated gauge.
How do I convert millibars or hectopascals here?: Divide by a thousand and enter the result as bar, since millibars and hectopascals are not separate entries in this list. One millibar is one hectopascal is 100 pascals, so 0.001 bar reads 100 Pa, and a sea level reading of 1,013.25 mbar is 1.01325 bar, which comes out as 101,325 Pa. Going the other way, divide the pascal answer by 100 to read it in hectopascals.
What is 200 bar in pascals and megapascals?: 20,000,000 Pa, which is 20 MPa. Megapascals are not in the list either, so take the pascal figure and divide by a million: 1 bar is 0.1 MPa, 10 bar is 1 MPa, and a 200 bar diving cylinder or hydraulic line is 20 MPa. The same 200 bar also shows as 20,000 kPa, 2,900.7547546 psi and 197.384653343 atm in the list under the answer.
Does it know whether my reading is gauge or absolute?: It changes units while preserving the pressure reference and never adds ambient pressure. A gauge reading of 2.2 bar is 220,000 Pa above ambient. Assuming ambient pressure is exactly one standard atmosphere (1.01325 bar), the corresponding absolute pressure is 3.21325 bar or 321,325 Pa. Actual ambient pressure can differ; converting the unit alone does not determine it.
Why does the page open on bar and pascals when I last converted something else?: A focused page opens on its named pair, so this one selects bar and pascals while preserving the main converter’s saved pair. When browser storage is usable, the last saved valid value and uncommon-unit preference can travel between pages. Valid deliberate edits can save those fields; invalid drafts do not overwrite the saved record. Unusable or conflicting settings are kept with an explanation until you use Forget saved settings, which keeps the current on-screen conversion.

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.