Bar to KPA Converter
Convert between bar and kilopascal pressure units
Pressure Conversion
Conversion Result
1 bar = 100 kilopascals
Bar to KPA Converter
Need to convert bar to kilopascal? This tool makes it simple. Whether you’re dealing with engineering specs, meteorological data, or scientific calculations, our bar to kPa converter instantly gives you accurate pressure values with just one click.
What Is a Bar?
The bar (symbol: bar) is a metric unit of pressure, equivalent to exactly 100,000 pascals (Pa), or 100 kilopascals (kPa). Though not an SI unit, it’s commonly used in fields like meteorology and engineering. One bar equals about 0.987 atmospheres.
Origin: The term “bar” comes from the Greek word “baros,” meaning “weight.” It was introduced by Norwegian physicist Vilhelm Bjerknes, a pioneer in modern weather forecasting.
Usage: While the bar has been deprecated in official SI documentation, it remains widely used, especially in meteorology, where 1 atmosphere is often referenced as 1013.25 millibars or 101.325 kPa.
What Is a Kilopascal (kPa)?
The kilopascal is a unit of pressure within the International System of Units (SI), equal to 1,000 pascals (Pa). A single pascal represents the pressure of one newton per square meter (1 N/m²).
Named after French scientist Blaise Pascal, this unit is a standard in engineering, geophysics, and material sciences. In most countries using SI units, the kPa has replaced traditional units like psi and bar in technical fields.
Bar to Kilopascal Conversion Formula
To convert bar to kilopascals:
1 bar = 100 kPa
To convert kilopascals to bar:
1 kPa = 0.01 bar
Example:
15 bar × 100 = 1500 kPa
Bar to kPa Conversion Table
| Bar | Kilopascal (kPa) |
| 0.01 | 1 |
| 0.1 | 10 |
| 1 | 100 |
| 2 | 200 |
| 3 | 300 |
| 5 | 500 |
| 10 | 1000 |
| 20 | 2000 |
| 50 | 5000 |
| 100 | 10000 |
| 1000 | 100000 |
When to Use Bar vs. kPa
While both units measure pressure, bar is more commonly used in weather reporting and tire pressure gauges, while kPa is favored in scientific and engineering disciplines. Use bar for general purposes and kPa for standardized, SI-compliant calculations.