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Pa to kPa Converter

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Convert pascals to kilopascals using the SI relation 1 kPa = 1,000 Pa. Anchors: 1,000 Pa = 1 kPa, 50,000 Pa = 50 kPa, 101,325 Pa = 101.325 kPa (sea-level standard atmosphere). Useful when fine-resolution physics or fluid-mechanics readings in Pa need to be summarised at kPa precision for reporting. Browser-local.

Decimal places:

From (Metric, Pascal)

Pascal (Pa)

To (Metric, Kilopascal)

Kilopascal (kPa)

Pascal (Pa) → Kilopascal (kPa)

Quick reference table

Pascal (Pa)	Kilopascal (kPa)
1 Pa	0.001 kPa
2 Pa	0.002 kPa
5 Pa	0.005 kPa
10 Pa	0.01 kPa
25 Pa	0.025 kPa
50 Pa	0.05 kPa
100 Pa	0.1 kPa

Glossary

Pascal (Pa)

The pascal is the SI derived unit of pressure, defined as one newton per square meter (1 Pa = 1 N/m²). Named after Blaise Pascal. The Pa is too small for most everyday quantities — atmospheric pressure is about 101,325 Pa — so kilopascals (kPa) and megapascals (MPa) are used in practice. Common in fine-resolution scientific and engineering calculations.

Kilopascal (kPa)

A kilopascal equals 1,000 pascals. It is the everyday metric pressure unit for tire pressure outside the US (32 psi ≈ 220 kPa), atmospheric pressure (~101 kPa at sea level), HVAC duct pressure and blood-pressure readings reported in metric form (120/80 mmHg ≈ 16.0/10.7 kPa). The standard atmosphere equals 101.325 kPa exactly.

Metric / SI pressure

In the metric system, pressure is reported in pascals (SI base) or its multiples — kilopascal (kPa, 10³ Pa), megapascal (MPa, 10⁶ Pa) — and the related non-SI unit bar (10⁵ Pa). The millibar/hectopascal (mbar = hPa = 100 Pa) is used in meteorology. All metric units relate by exact powers of ten, so conversions between them are simple shifts of decimal point.

Imperial / US pressure

US engineering and automotive primarily report pressure in pounds per square inch (psi). 1 psi ≈ 6,894.76 Pa, defined as one pound-force per square inch. Standard atmospheric pressure is 14.696 psi. The closely related "psi-gauge" (psi-g) measures pressure above atmospheric, while "psi-absolute" (psi-a) measures total pressure including atmospheric.

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