Convert Hectopascals to Bars

Enter the pressure in hectopascals below to get the value converted to bars.

Results in Bars:
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1 hPa = 0.001 bar

How to Convert Hectopascals to Bars

Calculators can be used to convert measurements from one unit to another

To convert a hectopascal measurement to a bar measurement, multiply the pressure by the conversion ratio. One hectopascal is equal to 0.001 bars, so use this simple formula to convert:

bars = hectopascals × 0.001

The pressure in bars is equal to the hectopascals multiplied by 0.001.

For example, here's how to convert 5 hectopascals to bars using the formula above.
5 hPa = (5 × 0.001) = 0.005 bar

Hectopascals and bars are both units used to measure pressure. Keep reading to learn more about each unit of measure.


The hectopascal is equal to 100 pascals, which are defined as the pressure of one newton per square meter. The hectopascal is the internationally adopted unit used to measure atmospheric pressure.

The hectopascal is a multiple of the pascal, which is the SI derived unit for pressure. In the metric system, "hecto" is the prefix for 102. Hectopascals can be abbreviated as hPa, for example 1 hectopascal can be written as 1 hPa.


The bar is equal to 100,000 pascals, which are defined as the pressure of one newton per square meter. One bar is just less than the average atmospheric pressure.

The bar is a non-SI metric unit for pressure. Bars can be abbreviated as bar, for example 1 bar can be written as 1 bar.

Hectopascal Measurements and Equivalent Bar Conversions

Common hectopascal values converted to the equivalent bar value
Hectopascals Bars
1 hPa 0.001 bar
2 hPa 0.002 bar
3 hPa 0.003 bar
4 hPa 0.004 bar
5 hPa 0.005 bar
6 hPa 0.006 bar
7 hPa 0.007 bar
8 hPa 0.008 bar
9 hPa 0.009 bar
10 hPa 0.01 bar
11 hPa 0.011 bar
12 hPa 0.012 bar
13 hPa 0.013 bar
14 hPa 0.014 bar
15 hPa 0.015 bar
16 hPa 0.016 bar
17 hPa 0.017 bar
18 hPa 0.018 bar
19 hPa 0.019 bar
20 hPa 0.02 bar
21 hPa 0.021 bar
22 hPa 0.022 bar
23 hPa 0.023 bar
24 hPa 0.024 bar
25 hPa 0.025 bar
26 hPa 0.026 bar
27 hPa 0.027 bar
28 hPa 0.028 bar
29 hPa 0.029 bar
30 hPa 0.03 bar
31 hPa 0.031 bar
32 hPa 0.032 bar
33 hPa 0.033 bar
34 hPa 0.034 bar
35 hPa 0.035 bar
36 hPa 0.036 bar
37 hPa 0.037 bar
38 hPa 0.038 bar
39 hPa 0.039 bar
40 hPa 0.04 bar

More Hectopascal Pressure Conversions

Convert to Pascals
1 hPa is equal to 100 pascals
Convert to Atmospheres
1 hPa is equal to 0.000987 atmospheres
Convert to Millibars
1 hPa is equal to 1 millibars
Convert to Kilograms Per Square Centimeter
1 hPa is equal to 0.00102 kilograms per square centimeter
Convert to Kilograms Per Square Meter
1 hPa is equal to 10.197162 kilograms per square meter
Convert to Pounds Per Square Inch
1 hPa is equal to 0.014504 pounds per square inch
Convert to Pounds Per Square Foot
1 hPa is equal to 2.088546 pounds per square foot
Convert to Torr
1 hPa is equal to 0.750062 torr

Unit of Measurement Conversion Made Easy!

There are thousands of units of measure in use across the globe, and converting from one to another can be very difficult since each conversion requires a different formula to derive the result. Our unit of measurement conversion tools are meant to be dead easy. We break the mold of the typical dry and complicated experience. In addition to converting from one measurement to another, we provide the formula so you can see how the conversion is done, use it on you’re own calculator if you need to!

Convert units of length, weight, volume, and area between imperial and metric measures

Understanding the Metric System

The metric system makes it relatively easy to convert from one metric unit to another metric unit. The metric system uses a base unit, think meters or grams, and a prefix such as kilo or milli. The prefixes differ from the base units by differing powers of 10. So to convert within the metric system it’s usually a matter of multiplying or dividing by one of the powers of 10.

Here is a list of some of the common metric prefixes:

  • “kilo” – 1,000x larger
  • “hecto” – 100x larger
  • “deca” – 10x larger
  • “deci” – 10x smaller
  • “centi” – 100x smaller
  • “milli” – 1,000x smaller

There is a helpful mnemonic for remembering the prefixes: “King Henry Died Until Drinking Chocolate Milk.”
The u in Until refers to the base unit.