bar (bar) | hectopascals (hPa) |
---|---|
0 | 0 |
1 | 1000 |
2 | 2000 |
3 | 3000 |
4 | 4000 |
5 | 5000 |
6 | 6000 |
7 | 7000 |
8 | 8000 |
9 | 9000 |
10 | 10000 |
20 | 20000 |
30 | 30000 |
40 | 40000 |
50 | 50000 |
60 | 60000 |
70 | 70000 |
80 | 80000 |
90 | 90000 |
100 | 100000 |
1000 | 1000000 |
Converting between bar and hectopascals is relatively straightforward due to their close relationship as metric units of pressure. This conversion is useful in various scientific and engineering fields.
The key to converting between bar and hectopascals (hPa) lies in understanding their relationship:
Therefore:
To convert bar to hectopascals, multiply the pressure in bar by 1000.
Example:
Convert 1 bar to hectopascals:
To convert hectopascals to bar, divide the pressure in hectopascals by 1000.
Example:
Convert 1 hectopascal to bar:
Atmospheric Pressure: Standard atmospheric pressure at sea level is approximately 1013.25 hPa, which is equivalent to 1.01325 bar. This is a common conversion in meteorology and aviation.
Tire Pressure Gauges: Some tire pressure gauges display pressure in bar, while weather reports or scientific contexts might use hectopascals to describe atmospheric pressure. A typical car tire pressure of 2.2 bar is equivalent to 2200 hPa.
Diving: Divers often use pressure measurements to calculate depth. Pressure gauges may display pressure in bar, which needs to be understood in relation to atmospheric pressure (converted to hPa if necessary) to determine the total pressure exerted on the diver.
While not tied to a specific law or person, the use of the bar as a unit of pressure was promoted by the British physicist Sir Richard Glazebrook, who advocated for its adoption to standardize pressure measurements. The bar and its subdivisions, such as the hectopascal, provide convenient scales for expressing pressures encountered in everyday life and scientific research.
See below section for step by step unit conversion with formulas and explanations. Please refer to the table below for a list of all the hectopascals to other unit conversions.
The bar is a metric unit of pressure, widely used in science, engineering, and industry. It's a convenient unit because it is close to standard atmospheric pressure on Earth. Below is detailed information about bar, it's origin, and some real-world examples.
The bar is defined as exactly Pascals (). The Pascal (Pa) is the SI unit of pressure, defined as one Newton per square meter (). Therefore:
The bar was introduced by British physicist Sir Napier Shaw in 1909. The goal was to have a unit of pressure that was close to atmospheric pressure but based on the metric system. The term "bar" comes from the Greek word "βάρος" (baros) meaning "weight."
Standard atmospheric pressure at sea level is approximately bar. Because of this proximity, the bar and millibar (1 mbar = 0.001 bar) are frequently used in meteorology to measure atmospheric pressure. Historically, meteorologists used millibars, but now the SI unit, the hectopascal (hPa), is also widely used (1 hPa = 1 mbar).
Hectopascals (hPa) are a commonly used unit of pressure, particularly in meteorology. The following sections will detail what they are, how they relate to other units, and their real-world applications.
A hectopascal (hPa) is a unit of pressure defined as 100 pascals (Pa). The pascal itself is the SI unit of pressure, defined as one newton per square meter (). Therefore, 1 hPa is equivalent to 100 .
The prefix "hecto" signifies a factor of 100. This makes the hectopascal a convenient unit for measuring atmospheric pressure, as it avoids the use of excessively large or small numbers. It's directly related to other units, most notably the millibar (mbar).
This equivalence is why you'll often see hPa and mbar used interchangeably in weather reports. The older unit of pressure, the atmosphere (atm), is approximately 1013.25 hPa at sea level under standard conditions.
Hectopascals are the standard unit for reporting atmospheric pressure in meteorology. Weather maps and forecasts routinely use hPa to depict high and low-pressure systems. These pressure systems drive weather patterns. For example, low-pressure systems are often associated with clouds and precipitation, while high-pressure systems are typically associated with clear skies.
Convert 1 bar to other units | Result |
---|---|
bar to pascals (bar to Pa) | 100000 |
bar to kilopascals (bar to kPa) | 100 |
bar to megapascals (bar to MPa) | 0.1 |
bar to hectopascals (bar to hPa) | 1000 |
bar to millibar (bar to mbar) | 1000 |
bar to torr (bar to torr) | 750.06168270417 |
bar to meters of water @ 4°C (bar to mH2O) | 10.197162129779 |
bar to millimeters of mercury (bar to mmHg) | 750.06375541921 |
bar to pounds per square inch (bar to psi) | 14.503768078 |
bar to kilopound per square inch (bar to ksi) | 0.014503768078 |
bar to Inches of mercury (bar to inHg) | 29.529980572285 |