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Sources and Accuracy
Pressure conversions use pascal as the reference unit and include common engineering, weather, tire, and laboratory pressure units.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
About These Units
kilopascal [kPa]
Definition
The kilopascal is a metric pressure unit equal to 1000 pascals.
History
The pascal is the SI derived pressure unit, and kilopascals are convenient for everyday pressure values.
Current use
Kilopascals are used for tire pressure, weather, engineering specifications, medical equipment, and HVAC documentation.
megapascal [MPa]
Definition
The megapascal (MPa) is a pressure unit used to express measurements in this converter.
History
This unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current use
Use megapascal when comparing pressure values, checking specifications, converting between systems, or preparing quick estimates.