4 tools
Kilopascals, bar and pounds per square inch.
Choose a conversion below. Every tool includes an instant result, an example and a short explanation.
Pressure expresses force distributed over an area. Kilopascals are common in SI-based engineering and weather reports; bar appears on equipment and tire gauges; psi remains widespread on US specifications. Converting the unit changes the number on the scale, but never the physical pressure being reported.
Check whether the source is absolute pressure or gauge pressure before comparing readings. A gauge reading is measured relative to surrounding air; an absolute reading is measured relative to vacuum. A unit converter cannot infer or remove that offset. Negative gauge readings can represent a partial vacuum, whereas negative absolute pressure would be physically invalid.
Yes: all three express pressure, which is force distributed over area. Their number scales differ widely, so write the target unit beside every result. A tyre specification in psi and an instrument reading in kPa can be compared after conversion, provided both refer to the same kind of pressure reading.
No. This category changes only the pressure unit. Gauge pressure is measured relative to local atmospheric pressure; absolute pressure is measured relative to a vacuum. To move between those reference points, you need the ambient atmospheric pressure. A numerical unit conversion alone cannot supply or remove that offset.