How many pascals are in a kilopascal?

Exactly 1,000, because kilo is the SI prefix for a thousand. The scaling is only ever a shift of the decimal point: 0.25 kPa is 250 Pa, 0.5 kPa is 500 Pa, 2.5 kPa is 2,500 Pa, 15 kPa is 15,000 Pa, 250 kPa is 250,000 Pa and 1,000 kPa is 1,000,000 Pa. The factor is exact and a finite decimal input produces a terminating exact value, but the display still rounds beyond twelve significant digits.

What is the formula for kPa to Pa?

Pa = kPa × 1,000, and the reverse is kPa = Pa × 0.001. Both are exact. 1 Pa is 0.001 kPa, 1,000 Pa is 1 kPa and 15,000 Pa is 15 kPa. The swap button between the two boxes reverses the pair and turns this into a pascals to kilopascals converter without a reload.

Worked example: what is standard atmospheric pressure in pascals?

The standard atmosphere is defined as 101.325 kPa, and this converter turns that into exactly 101,325 Pa. The list under the answer confirms the same pressure from the other side: 101.325 kPa reads exactly 1 atm and 1.01325 bar. The other round pairing in this category is the bar, where 100 kPa is exactly 1 bar and 100,000 Pa.

Is it kPa, KPa or kpa?

The standard symbol is kPa: lowercase k for the kilo prefix and capital P in Pa for pascal. The menus display Kilopascal (kPa) and Pascal (Pa). The input accepts a scalar, optionally with a matching unit suffix; use the source’s explicit unit convention and the standard symbol.

Why did my answer come back as 5e-7?

Because displayed magnitudes below 0.000001 are printed in exponential notation rather than as a string of leading zeroes. Converting pascals to kilopascals reaches that quickly: 0.001 Pa is 0.000001 kPa, which is the last value shown in full, while 0.0005 Pa reads 5e-7 kPa and 0.0001 Pa reads 1e-7 kPa. The same switch happens at the top of the range, at 1e15 and above, so 1,000,000,000,000 kPa reads 1e15 Pa. Everything in between is printed to twelve significant digits.

Does the converter know gauge pressure from absolute pressure?

This converter preserves the supplied pressure reference and has no gauge-to-absolute mode. Gauge pressure is relative to a stated reference, while absolute pressure is relative to vacuum. To derive absolute pressure separately, supply the applicable ambient pressure and add it before converting. The standard atmosphere of 101.325 kPa is a defined unit; it does not establish current ambient pressure. Multiplying kPa by 1,000 preserves either reference rather than changing it.

What else does the page show for 1 kPa?

The same pressure in the other common pressure units at once: 1,000 Pa, 0.01 bar, 0.14503773773 psi and 0.00986923266716 atm. The readout strip carries a Show 1 more switch for the uncommon unit, the millimetre of mercury, where 1 kPa reads 7.50061575846 mmHg. The strip also names the category, Pressure, and the base unit every factor is defined against, the pascal. mmHg is conventional 133.322387415 Pa, distinct from torr; the psi coefficient is rounded to 6,894.757293168 Pa.

Why does the page open on kPa and Pa when I last converted something else?

This focused page opens on Kilopascal and Pascal, 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. 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.

kPa to Pa Converter

Kilo is the SI prefix for a thousand, so a kilopascal is exactly 1,000 pascals and the exact arithmetic uses a power-of-ten factor, while displayed and copied values round beyond twelve significant digits: Pa = kPa × 1,000, which in decimal is the point moving three places to the right. That gives 1 kPa as 1,000 Pa, 3.5 kPa as 3,500 Pa, 15 kPa as 15,000 Pa, 100 kPa as 100,000 Pa and the standard atmosphere of 101.325 kPa as exactly 101,325 Pa. It runs back the same way, kPa = Pa / 1,000, so 250 Pa is 0.25 kPa and 101,325 Pa is 101.325 kPa. A pascal is one newton per square metre, which is a small unit for most practical pressures, and that is exactly why the kilopascal exists: tyre, weather and process figures come out as tidy two and three digit numbers in kPa where pascals would need five or six. This page opens with Kilopascal (kPa) in the From box and Pascal (Pa) in the To box, ahead of whatever pair the converter last remembered, and the list under the answer gives the same pressure in bar, psi and atmospheres at once, so 1 kPa also reads 0.01 bar, 0.14503773773 psi and 0.00986923266716 atm. Negative values are accepted for readings below the reference, so -5 kPa returns -5,000 Pa.

From

To1,000

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 kPa in every pressure unit

PascalPa
1,000
Barbar
0.01
Pound per square inchpsi
0.14503773773
Atmosphereatm
0.00986923266716

Selectable complete conversion

Unit Converter — Pressure
Input: 1 (Kilopascal, kPa)
Result: 1000 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): 1000
Bar (bar): 0.01
Pound per square inch (psi): 0.14503773773
Atmosphere (atm): 0.00986923266716
Millimeter of mercury (mmHg): 7.50061575846

Common questions

How many pascals are in a kilopascal?: Exactly 1,000, because kilo is the SI prefix for a thousand. The scaling is only ever a shift of the decimal point: 0.25 kPa is 250 Pa, 0.5 kPa is 500 Pa, 2.5 kPa is 2,500 Pa, 15 kPa is 15,000 Pa, 250 kPa is 250,000 Pa and 1,000 kPa is 1,000,000 Pa. The factor is exact and a finite decimal input produces a terminating exact value, but the display still rounds beyond twelve significant digits.
What is the formula for kPa to Pa?: Pa = kPa × 1,000, and the reverse is kPa = Pa × 0.001. Both are exact. 1 Pa is 0.001 kPa, 1,000 Pa is 1 kPa and 15,000 Pa is 15 kPa. The swap button between the two boxes reverses the pair and turns this into a pascals to kilopascals converter without a reload.
Worked example: what is standard atmospheric pressure in pascals?: The standard atmosphere is defined as 101.325 kPa, and this converter turns that into exactly 101,325 Pa. The list under the answer confirms the same pressure from the other side: 101.325 kPa reads exactly 1 atm and 1.01325 bar. The other round pairing in this category is the bar, where 100 kPa is exactly 1 bar and 100,000 Pa.
Is it kPa, KPa or kpa?: The standard symbol is kPa: lowercase k for the kilo prefix and capital P in Pa for pascal. The menus display Kilopascal (kPa) and Pascal (Pa). The input accepts a scalar, optionally with a matching unit suffix; use the source’s explicit unit convention and the standard symbol.
Why did my answer come back as 5e-7?: Because displayed magnitudes below 0.000001 are printed in exponential notation rather than as a string of leading zeroes. Converting pascals to kilopascals reaches that quickly: 0.001 Pa is 0.000001 kPa, which is the last value shown in full, while 0.0005 Pa reads 5e-7 kPa and 0.0001 Pa reads 1e-7 kPa. The same switch happens at the top of the range, at 1e15 and above, so 1,000,000,000,000 kPa reads 1e15 Pa. Everything in between is printed to twelve significant digits.
Does the converter know gauge pressure from absolute pressure?: This converter preserves the supplied pressure reference and has no gauge-to-absolute mode. Gauge pressure is relative to a stated reference, while absolute pressure is relative to vacuum. To derive absolute pressure separately, supply the applicable ambient pressure and add it before converting. The standard atmosphere of 101.325 kPa is a defined unit; it does not establish current ambient pressure. Multiplying kPa by 1,000 preserves either reference rather than changing it.
What else does the page show for 1 kPa?: The same pressure in the other common pressure units at once: 1,000 Pa, 0.01 bar, 0.14503773773 psi and 0.00986923266716 atm. The readout strip carries a Show 1 more switch for the uncommon unit, the millimetre of mercury, where 1 kPa reads 7.50061575846 mmHg. The strip also names the category, Pressure, and the base unit every factor is defined against, the pascal. mmHg is conventional 133.322387415 Pa, distinct from torr; the psi coefficient is rounded to 6,894.757293168 Pa.
Why does the page open on kPa and Pa when I last converted something else?: This focused page opens on Kilopascal and Pascal, 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. 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.

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.