Hectopascals to Bars (hPa → bar)
Formula
1 hPa = 0.001 barConversion Table
| hPa | bar |
|---|---|
| 0 | 0 |
| 1.0000 | 0.0010000 |
| 2.0000 | 0.0020000 |
| 3.0000 | 0.0030000 |
| 4.0000 | 0.0040000 |
| 5.0000 | 0.0050000 |
| 6.0000 | 0.0060000 |
| 7.0000 | 0.0070000 |
| 8.0000 | 0.0080000 |
| 9.0000 | 0.0090000 |
| 10.000 | 0.010000 |
| 11.000 | 0.011000 |
| 12.000 | 0.012000 |
| 13.000 | 0.013000 |
| 14.000 | 0.014000 |
| 15.000 | 0.015000 |
| 16.000 | 0.016000 |
| 17.000 | 0.017000 |
| 18.000 | 0.018000 |
| 19.000 | 0.019000 |
| hPa | bar |
|---|---|
| 20.000 | 0.020000 |
| 21.000 | 0.021000 |
| 22.000 | 0.022000 |
| 23.000 | 0.023000 |
| 24.000 | 0.024000 |
| 25.000 | 0.025000 |
| 26.000 | 0.026000 |
| 27.000 | 0.027000 |
| 28.000 | 0.028000 |
| 29.000 | 0.029000 |
| 30.000 | 0.030000 |
| 31.000 | 0.031000 |
| 32.000 | 0.032000 |
| 33.000 | 0.033000 |
| 34.000 | 0.034000 |
| 35.000 | 0.035000 |
| 36.000 | 0.036000 |
| 37.000 | 0.037000 |
| 38.000 | 0.038000 |
| 39.000 | 0.039000 |
| hPa | bar |
|---|---|
| 40.000 | 0.040000 |
| 41.000 | 0.041000 |
| 42.000 | 0.042000 |
| 43.000 | 0.043000 |
| 44.000 | 0.044000 |
| 45.000 | 0.045000 |
| 46.000 | 0.046000 |
| 47.000 | 0.047000 |
| 48.000 | 0.048000 |
| 49.000 | 0.049000 |
| 50.000 | 0.050000 |
| 51.000 | 0.051000 |
| 52.000 | 0.052000 |
| 53.000 | 0.053000 |
| 54.000 | 0.054000 |
| 55.000 | 0.055000 |
| 56.000 | 0.056000 |
| 57.000 | 0.057000 |
| 58.000 | 0.058000 |
| 59.000 | 0.059000 |
| hPa | bar |
|---|---|
| 60.000 | 0.060000 |
| 61.000 | 0.061000 |
| 62.000 | 0.062000 |
| 63.000 | 0.063000 |
| 64.000 | 0.064000 |
| 65.000 | 0.065000 |
| 66.000 | 0.066000 |
| 67.000 | 0.067000 |
| 68.000 | 0.068000 |
| 69.000 | 0.069000 |
| 70.000 | 0.070000 |
| 71.000 | 0.071000 |
| 72.000 | 0.072000 |
| 73.000 | 0.073000 |
| 74.000 | 0.074000 |
| 75.000 | 0.075000 |
| 76.000 | 0.076000 |
| 77.000 | 0.077000 |
| 78.000 | 0.078000 |
| 79.000 | 0.079000 |
Hectopascals to Bars Conversion
Converting Hectopascals (hPa) to Bars (bar) is a common pressure conversion. 1 hPa equals 0.001 bar. For example, 100 hPa is equal to 0.1 bar.
Quick Mental Math: Hectopascals to Bars
Pressure units (atm, bar, psi, pascal) are diverse; use atmospheres as a reference tier.
Why is converting Hectopascals to Bars tricky?
Magnitude or direction confusion between hectopascals and bars is the primary error source.
Quick Reference Values
1 hPa = 0.001 bar. 5 hPa = 0.005 bar. 10 hPa = 0.01 bar. 25 hPa = 0.025 bar. 50 hPa = 0.05 bar. 100 hPa = 0.1 bar.
What is Hectopascals?
Hectopascals (hPa) is a unit of pressure. The hectopascal is a unit of pressure equal to 100 pascals. It is defined as exactly 100 newtons per square meter (100 N/m²), where the pascal (Pa) is the SI derived unit of pressure. The hectopascal is widely used in meteorology for atmospheric pressure measurements and aligns with the SI system as per international standards [bipm-si-brochure]. The pascal unit was named after Blaise Pascal and officially adopted by the General Conference on Weights and Measures (CGPM) in 1971. The hectopascal emerged as a convenient multiple used in meteorology to represent atmospheric pressure values in the 20th century [cgpm-resolutions]. Hectopascals are standard in weather reports worldwide, especially in Europe, Asia, and Australia. The US National Weather Service uses millibars, numerically equivalent to hectopascals, for atmospheric pressure. It is recognized by ISO 80000 as a unit of pressure [iso-80000].
What is Bars?
Bars (bar) is a unit of pressure. The bar is a unit of pressure equal to exactly 100,000 pascals (Pa). It is used to measure pressure or stress and is slightly less than the standard atmospheric pressure of 101,325 Pa. The bar is not an SI unit but is accepted for use with SI by the BIPM due to its convenience in many engineering fields [bipm-si-brochure]. The bar was introduced by the Norwegian meteorologist Vilhelm Bjerknes in 1909 to simplify atmospheric pressure measurements. It gained wider recognition in the mid-20th century and was formally accepted for use with the SI by the BIPM to provide a practical unit for pressure [bipm-si-brochure]. The bar is widely used in meteorology, engineering, and automotive industries worldwide, especially in Europe and Asia. It remains common in barometric pressure readings and tire pressure specifications, although the pascal is the SI base unit [bipm-si-brochure].
Common Misspellings
People often search for this conversion using these alternate spellings: hecto pascals, hecto-pascals, hecto pascal, hec topascal, barres, barre, bars pressure. All of these refer to the Hectopascals to Bars conversion.