microbar
Pressureexact by definition
The microbar is 10⁻⁶ bar, exactly 0.1 pascals, and identical to the barye of the CGS system. It is the traditional reference unit of acoustics: older microphone sensitivities are given in volts per microbar, and the pre-SI sound pressure level reference was 1 μbar rather than today's 20 μPa.
Watch out: A microphone sensitivity in dB re 1 V/μbar and one in dB re 1 V/Pa differ by 20 dB. Converting old datasheets without accounting for that is a factor-of-ten error in every level that follows.
| 1 | 0.0001 |
One microbar in every pressure unit
| 1 | microbar (μbar)this unit | |
| 1 | barye (Ba) | |
| 0.750062 | millitorr (mTorr) | |
| 0.1 | pascal (Pa) | |
| 0.0101972 | millimeter of water column (mmH₂O) | |
| 0.00208854 | pound per square foot (lb/ft²) | |
| 0.00101972 | centimeter of water column (cmH₂O) | |
| 0.001 | hectopascal (hPa) | |
| 0.001 | millibar (mbar) | |
| 0.000750062 | torr (Torr) | |
| 0.000750062 | millimeter of mercury (mmHg) | |
| 0.000401463 | inch of water column (in w.g.) | |
| 0.0001 | kilopascal (kPa) | |
| 0.0000334553 | foot of water column (ft H₂O) | |
| 0.00002953 | inch of mercury (inHg) | |
| 0.0000145038 | pound per square inch (psi) | |
| 0.0000101972 | meter of water column (m H₂O) | |
| 0.00001 | decibar (dbar) | |
| 0.00000101972 | kilogram-force per square centimeter (kgf/cm²) | |
| 0.000001 | bar (bar) | |
| 9.86923e-07 | atmosphere (atm) | |
| 1.00000e-07 | megapascal (MPa) | |
| 1.45038e-08 | kip per square inch (ksi) | |
| 1.00000e-10 | gigapascal (GPa) | |
| 1.45038e-11 | million pounds per square inch (Mpsi) |
Solvers that use pressure