Pressure units Conversion
This tool converts pressure units online.
Pressure Units
Standard units
Pa : pascal
kPa : kilopascal
MPa : megapascal
bar : bar
mbar : millibar
Imperial System
psi : pound-force per square inch
Mercury units
mmHg : mm of mercury
inHg : inch of mercury
torr : torr
Atmosphere units
atm : normal atmosphere
at : technical atmosphere
Pressure Unit Conversion Tables
Standard units / Standard units| # | Pa | kPa | MPa | bar | mbar |
|---|---|---|---|---|---|
| 1 Pa = | 1 | 0.001 | 1.0e-6 | 1.0e-5 | 0.01 |
| 1 kPa = | 1000 | 1 | 0.001 | 0.01 | 10 |
| 1 MPa = | 1.0e+6 | 1000 | 1 | 10 | 10000 |
| 1 bar = | 100000 | 100 | 0.1 | 1 | 1000 |
| 1 mbar = | 100 | 0.1 | 0.0001 | 0.001 | 1 |
Standard units / Imperial System
| # | psi |
|---|---|
| 1 Pa = | 0.0001 |
| 1 kPa = | 0.145 |
| 1 MPa = | 145.0377 |
| 1 bar = | 14.5038 |
| 1 mbar = | 0.0145 |
Standard units / Mercury units
| # | mmHg | inHg | torr |
|---|---|---|---|
| 1 Pa = | 0.0075 | 0.0003 | 0.0075 |
| 1 kPa = | 7.5006 | 0.2953 | 7.5006 |
| 1 MPa = | 7500.6376 | 295.2998 | 7500.6376 |
| 1 bar = | 750.0638 | 29.53 | 750.0638 |
| 1 mbar = | 0.7501 | 0.0295 | 0.7501 |
Standard units / Atmosphere units
| # | atm | at |
|---|---|---|
| 1 Pa = | 9.8692e-6 | 1.0197e-5 |
| 1 kPa = | 0.0099 | 0.0102 |
| 1 MPa = | 9.8692 | 10.1972 |
| 1 bar = | 0.9869 | 1.0197 |
| 1 mbar = | 0.001 | 0.001 |
Imperial System / Standard units
| # | Pa | kPa | MPa | bar | mbar |
|---|---|---|---|---|---|
| 1 psi = | 6894.76 | 6.8948 | 0.0069 | 0.0689 | 68.9476 |
Imperial System / Mercury units
| # | mmHg | inHg | torr |
|---|---|---|---|
| 1 psi = | 51.7151 | 2.036 | 51.7151 |
Imperial System / Atmosphere units
| # | atm | at |
|---|---|---|
| 1 psi = | 0.068 | 0.0703 |
Mercury units / Standard units
| # | Pa | kPa | MPa | bar | mbar |
|---|---|---|---|---|---|
| 1 mmHg = | 133.322 | 0.1333 | 0.0001 | 0.0013 | 1.3332 |
| 1 inHg = | 3386.389 | 3.3864 | 0.0034 | 0.0339 | 33.8639 |
| 1 torr = | 133.322 | 0.1333 | 0.0001 | 0.0013 | 1.3332 |
Mercury units / Imperial System
| # | psi |
|---|---|
| 1 mmHg = | 0.0193 |
| 1 inHg = | 0.4912 |
| 1 torr = | 0.0193 |
Mercury units / Mercury units
| # | mmHg | inHg | torr |
|---|---|---|---|
| 1 mmHg = | 1 | 0.0394 | 1 |
| 1 inHg = | 25.4001 | 1 | 25.4001 |
| 1 torr = | 1 | 0.0394 | 1 |
Mercury units / Atmosphere units
| # | atm | at |
|---|---|---|
| 1 mmHg = | 0.0013 | 0.0014 |
| 1 inHg = | 0.0334 | 0.0345 |
| 1 torr = | 0.0013 | 0.0014 |
Atmosphere units / Standard units
| # | Pa | kPa | MPa | bar | mbar |
|---|---|---|---|---|---|
| 1 atm = | 1.0132e+5 | 101.325 | 0.1013 | 1.0132 | 1013.25 |
| 1 at = | 98066.5 | 98.0665 | 0.0981 | 0.9807 | 980.665 |
Atmosphere units / Imperial System
| # | psi |
|---|---|
| 1 atm = | 14.6959 |
| 1 at = | 14.2233 |
Atmosphere units / Mercury units
| # | mmHg | inHg | torr |
|---|---|---|---|
| 1 atm = | 760.0021 | 29.9213 | 760.0021 |
| 1 at = | 735.5613 | 28.959 | 735.5613 |
Atmosphere units / Atmosphere units
| # | atm | at |
|---|---|---|
| 1 atm = | 1 | 1.0332 |
| 1 at = | 0.9678 | 1 |
See also
Pressure Calculators
Unit conversion