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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
torr [Torr]
Definition
The torr (Torr) 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 torr when comparing pressure values, checking specifications, converting between systems, or preparing quick estimates.
pascal [Pa]
Definition
The pascal is the SI derived unit of pressure equal to one newton per square meter.
History
The pascal is named after Blaise Pascal and is the standard SI pressure unit.
Current use
Pascals are used in science, engineering, materials testing, weather, acoustics, and fluid mechanics.