Pressure converters
Pressure is force per unit area. The SI unit is the pascal (Pa), but everyday and industrial contexts use a sprawl of derived units: bars for weather, atmospheres for chemistry, psi for tire pressure in the US, mmHg for blood pressure. All factors here are exact: 1 atm = 101,325 Pa, 1 bar = 100,000 Pa, 1 psi = 6,894.757293168361 Pa.
Popular pressure conversions
All pressure units
The 13 units below can be selected as source or target inside any pressure converter.
- PascalsPa · Metric
- KilopascalskPa · Metric
- MegapascalsMPa · Metric
- Barsbar · Metric
- Standard atmospheresatm · Other
- Pounds per square inchpsi · US customary
- Millimeters of mercurymmHg · Other
- TorrTorr · Other
- Millibarsmbar · Metric
- HectopascalshPa · Metric
- Inches of mercuryinHg · US customary
- Kilograms-force per square centimeterkgf/cm² · Metric
- Centimeters of watercmH₂O · Metric
Pressure units in terms of the pascal
Every pressure unit on Convertitive is defined as an exact ratio of the pascal (Pa), the reference unit for this category. The table below shows what one of each unit equals in pascals — the constant every converter on this page is built from.
| Unit | Symbol | 1 unit in pascals |
|---|---|---|
| Pascals | Pa | base unit |
| Kilopascals | kPa | 1000 Pa |
| Megapascals | MPa | 1000000 Pa |
| Bars | bar | 100000 Pa |
| Standard atmospheres | atm | 101325 Pa |
| Pounds per square inch | psi | 6894.76 Pa |
| Millimeters of mercury | mmHg | 133.322 Pa |
| Torr | Torr | 133.322 Pa |
| Millibars | mbar | 100 Pa |
| Hectopascals | hPa | 100 Pa |
| Inches of mercury | inHg | 3386.39 Pa |
| Kilograms-force per square centimeter | kgf/cm² | 98066.5 Pa |
| Centimeters of water | cmH₂O | 98.0665 Pa |
To convert between any two units, Convertitive scales the input to pascals using these factors and then back out to the target unit — so every result on this page traces to a single, exact definition rather than a chained approximation. Pick any pair above to see the formula, a 50-row reference table, and worked examples.
Pascals to kilopascals reference table
Common pascals values with their kilopascals equivalent, computed with the same factors the converter uses.
| Pa | kPa |
|---|---|
| 0.001 | 1.0000 × 10^−6 |
| 1 | 0.001 |
| 4 | 0.004 |
| 8 | 0.008 |
| 20 | 0.02 |
| 35 | 0.035 |
| 80 | 0.08 |
| 200 | 0.2 |
| 760 | 0.76 |
| 5000 | 5 |
| 101325 | 101.325 |
| 10000000 | 10000 |
Need a value that is not listed? Open the Pa to kPa converter and type any number.