Bar to Pascal Converter
Convert from Bar to Pascal (Pa)
Understanding Bar and Pascal
The bar is a metric unit of pressure that is not part of the SI but is accepted for use with it.
- 1 bar = 100,000 pascals (Pa) = 100 kPa
- Approximately equal to atmospheric pressure at sea level
- Commonly used in meteorology and many engineering applications
The pascal (Pa) is the SI unit of pressure, defined as one newton per square meter.
- Named after Blaise Pascal, a French mathematician and physicist
- A very small unit - atmospheric pressure is about 101,325 Pa
- Often used with prefixes: kilopascal (kPa), megapascal (MPa)
Conversion Formula
Bar to Pascal:
Pa = bar × 100,000
To convert from bar to pascals, multiply the bar value by 100,000.
Pascal to Bar:
bar = Pa ÷ 100,000
To convert from pascals to bar, divide the Pascal value by 100,000.
Bar to Pascal Conversion Table
| Bar | Pascal (Pa) |
|---|---|
| 0.1 | 10,000 |
| 0.2 | 20,000 |
| 0.3 | 30,000 |
| 0.4 | 40,000 |
| 0.5 | 50,000 |
| 0.6 | 60,000 |
| 0.7 | 70,000 |
| 0.8 | 80,000 |
| 0.9 | 90,000 |
| 1 | 100,000 |
Historical Context and Applications
Historical Development
The pascal is named after Blaise Pascal, whose experiments in the 17th century greatly advanced our understanding of pressure, vacuums, and hydraulics. The bar unit was introduced much later, in 1909, by Norwegian meteorologist Vilhelm Bjerknes. The bar was designed to be approximately equal to atmospheric pressure, making it a convenient unit for many applications, while the pascal became the fundamental SI unit of pressure.
Common Applications
- Bar: Widely used in meteorology, automotive applications (tire pressure), and industrial processes. It provides a convenient scale for many everyday pressure measurements.
- Pascal: Used primarily in scientific contexts and engineering calculations. While it's the standard SI unit, its small magnitude means it's often used with multipliers like kilo (1,000) or mega (1,000,000).
Practical Examples
- Standard atmospheric pressure: 1.01325 bar (101,325 Pa)
- Car tire pressure: 2.2 bar (220,000 Pa)
- Blood pressure (systolic, average): 0.12 bar (12,000 Pa)
- Champagne bottle pressure: 5-6 bar (500,000-600,000 Pa)
- Deep ocean pressure (4000m): 400 bar (40,000,000 Pa)
- Enter your value in the bar field
- The converter instantly displays the equivalent in pascals
- Use the swap button to convert from pascals to bar instead
- Results are displayed with 6 decimal places for precision
For quick reference without calculations, refer to the conversion table above for common values.