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. Nothing in this pair is an approximation, so every answer terminates.

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?

kPa. The pascal is named after a person, so its symbol takes a capital P, while the prefix kilo is always a lowercase k, which puts the only capital in the middle. KPa and kpa are common miswritings of the same unit and mean nothing else. The unit menus on this page spell it out in full, as Kilopascal (kPa) and Pascal (Pa), so there is nothing to type.

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

Because results 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?

No, and no unit converter can: it scales the number you type and cannot see what that number was measured against. A gauge reading is relative to the surrounding air and an absolute reading is relative to vacuum, and the two differ by the local atmospheric pressure, 101.325 kPa or 101,325 Pa at the standard value. The kPa to Pa step is unaffected either way, since multiplying by 1,000 preserves whatever reference the figure already had, but add the offset before comparing a gauge figure with an absolute one.

What else does the page show for 1 kPa?

The same pressure in every common pressure unit 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.

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

Because a page that names a pair should show that pair. This one sets kilopascals and pascals on arrival, ahead of whatever the converter last remembered, and it leaves the main unit converter alone: go back to the converter itself and it is still on the pair you left it on. The number you last typed does travel with you. The conversion is arithmetic against a table of factors that ships with the page, so it runs in your browser with nothing uploaded and no account.

kPa to Pa Converter

Kilo is the SI prefix for a thousand, so a kilopascal is exactly 1,000 pascals and the conversion introduces no rounding of its own: 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

1 kPa in every pressure unit

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

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. Nothing in this pair is an approximation, so every answer terminates.
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?: kPa. The pascal is named after a person, so its symbol takes a capital P, while the prefix kilo is always a lowercase k, which puts the only capital in the middle. KPa and kpa are common miswritings of the same unit and mean nothing else. The unit menus on this page spell it out in full, as Kilopascal (kPa) and Pascal (Pa), so there is nothing to type.
Why did my answer come back as 5e-7?: Because results 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?: No, and no unit converter can: it scales the number you type and cannot see what that number was measured against. A gauge reading is relative to the surrounding air and an absolute reading is relative to vacuum, and the two differ by the local atmospheric pressure, 101.325 kPa or 101,325 Pa at the standard value. The kPa to Pa step is unaffected either way, since multiplying by 1,000 preserves whatever reference the figure already had, but add the offset before comparing a gauge figure with an absolute one.
What else does the page show for 1 kPa?: The same pressure in every common pressure unit 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.
Why does the page open on kPa and Pa when I last converted something else?: Because a page that names a pair should show that pair. This one sets kilopascals and pascals on arrival, ahead of whatever the converter last remembered, and it leaves the main unit converter alone: go back to the converter itself and it is still on the pair you left it on. The number you last typed does travel with you. The conversion is arithmetic against a table of factors that ships with the page, so it runs in your browser with nothing uploaded and no account.

Conversion factors are the exact legal definitions where one exists. An inch is exactly 2.54 cm and a pound exactly 0.45359237 kg, so those conversions are exact rather than approximate. Temperature uses offsets rather than factors, and that is shown in the working.