Convert Pascals (Pa) to Gigapascals

1 pascal equals 1 × 10⁻⁹ gigapascals.

Formula: GPa = Pa × 1 × 10⁻⁹

Pascal to GPa Converter

Choose the type of measurement to convert
Select the source unit to convert from
Select the target unit to convert to
Enter a numeric value or fraction to convert
Sig. Figures:

How to Convert Pascal to GPa

1 pascal = 1 × 10-9 gigapascals

GPa = Pascal × 1 × 10-9

Example: 1 Pa × 1 × 10-9 = 1 × 10-9 GPa

Reverse Conversion

To convert gigapascals back to pascals:

  • Remember, 1 GPa equals 1 × 109 pascals.
  • To convert 1 × 10-9 GPa to Pa, multiply 1 × 10-9 x 1 × 109, resulting in 1 Pa.

Common Pascal to GPa Conversions

Pascal to GPa (Part 1)
Pascal GPa Actions
1 pascal 1 × 10-9 gigapascals
5 pascals 5 × 10-9 gigapascals
10 pascals 1 × 10-8 gigapascals
25 pascals 2.5 × 10-8 gigapascals
Pascal to GPa (Part 2)
Pascal GPa Actions
50 pascals 5 × 10-8 gigapascals
100 pascals 1 × 10-7 gigapascals
500 pascals 5 × 10-7 gigapascals
1000 pascals 1 × 10-6 gigapascals

Pascals to gigapascals Conversion Table

Reference table with common pascals to gigapascals conversions. All values calculated with high precision.

Pascals to Gigapascals Table
10000 to 5 × 107

Pascals Gigapascals Actions
10000 Pa 1 × 10-5 GPa
25000 Pa 2.5 × 10-5 GPa
50000 Pa 5 × 10-5 GPa
100000 Pa 0.0001 GPa
250000 Pa 0.00025 GPa
500000 Pa 0.0005 GPa
1000000 Pa 0.001 GPa
2500000 Pa 0.0025 GPa
5000000 Pa 0.005 GPa
10000000 Pa 0.01 GPa
2.5 × 107 Pa 0.025 GPa
5 × 107 Pa 0.05 GPa

Pascals to Gigapascals Table
1 × 108 to 1 × 1013

Pascals Gigapascals Actions
1 × 108 Pa 0.1 GPa
2.5 × 108 Pa 14 GPa
5 × 108 Pa 12 GPa
1 × 109 Pa 1 GPa
2.5 × 109 Pa 12 GPa
5 × 109 Pa 5 GPa
1 × 1010 Pa 10 GPa
2.5 × 1010 Pa 25 GPa
5 × 1010 Pa 50 GPa
1 × 1011 Pa 100 GPa
2.5 × 1011 Pa 250 GPa
5 × 1011 Pa 500 GPa
1 × 1012 Pa 1000 GPa
2.5 × 1012 Pa 2500 GPa
5 × 1012 Pa 5000 GPa
1 × 1013 Pa 10000 GPa

Gigapascals to Pascals Table
0.0001 to 12

Gigapascals Pascals Actions
0.0001 GPa 100000 Pa
0.00025 GPa 250000 Pa
0.0005 GPa 500000 Pa
0.001 GPa 1000000 Pa
0.0025 GPa 2500000 Pa
0.005 GPa 5000000 Pa
0.01 GPa 10000000 Pa
0.025 GPa 2.5 × 107 Pa
0.05 GPa 5 × 107 Pa
0.1 GPa 1 × 108 Pa
14 GPa 2.5 × 108 Pa
12 GPa 5 × 108 Pa

Gigapascals to Pascals Table
1 to 100000

Gigapascals Pascals Actions
1 GPa 1 × 109 Pa
12 GPa 2.5 × 109 Pa
5 GPa 5 × 109 Pa
10 GPa 1 × 1010 Pa
25 GPa 2.5 × 1010 Pa
50 GPa 5 × 1010 Pa
100 GPa 1 × 1011 Pa
250 GPa 2.5 × 1011 Pa
500 GPa 5 × 1011 Pa
1000 GPa 1 × 1012 Pa
2500 GPa 2.5 × 1012 Pa
5000 GPa 5 × 1012 Pa
10000 GPa 1 × 1013 Pa
25000 GPa 2.5 × 1013 Pa
50000 GPa 5 × 1013 Pa
100000 GPa 1 × 1014 Pa

Definition of Pascal

Pascal: The SI Unit of Pressure

The pascal (Pa) is the SI derived unit of pressure, defined as one newton per square meter (N/m²). Named after the French mathematician and physicist Blaise Pascal, it is used extensively in scientific, engineering, and meteorological applications. The pascal is a relatively small unit, so larger multiples like kilopascal (kPa) and megapascal (MPa) are commonly used in practice.

Conversions to Other Units of Measurement:

  1. Bar: 1 pascal equals 0.00001 bar (or 1 bar = 100,000 Pa). This conversion is frequently used in industrial applications. For example, standard atmospheric pressure (101,325 Pa) equals approximately 1.01325 bar.
  2. PSI (Pound per Square Inch): 1 pascal equals approximately 0.000145038 psi. This conversion is essential for interfacing with equipment using imperial measurements. For example, 100,000 Pa equals approximately 14.5 psi.
  3. Atmosphere (atm): 1 pascal equals approximately 9.8692×10⁻⁶ atm. Standard atmospheric pressure is defined as exactly 101,325 Pa or 1 atm.
  4. Torr: 1 pascal equals approximately 0.00750062 torr. This conversion is commonly used in vacuum technology. For example, 133.322 Pa equals 1 torr.
  5. Millibar (mbar): 1 pascal equals 0.01 millibar. This conversion is frequently used in meteorology. For example, standard atmospheric pressure equals 1013.25 mbar.

The pascal is fundamental to pressure measurement, providing a standardized unit for scientific calculations and engineering specifications.

Definition
SI derived unit of pressure equal to one newton per square meter (N/m²).
Exact factor
1 Pa = 1 N/m² = 1 kg/(m·s²) (exact)
Common equivalents
  • 1 Pa = 0.00001 bar (exact)
  • 1 Pa = 0.01 mbar (exact)
  • 1 Pa ≈ 0.000145038 psi
Sources

About the Pascal

Facts & Uses

  • SI derived unit of pressure: 1 Pa = 1 N/m². Named after Blaise Pascal (1623-1662), the French mathematician and physicist.
  • Universal in scientific publications, weather data (hectopascals on barometric charts), and engineering specifications.
  • The pascal is a very small unit for everyday pressures — atmospheric pressure is ~101,325 Pa, so weather forecasts use hectopascals (hPa) or kilopascals (kPa).
  • Used in fluid mechanics, vacuum measurements, materials science (stress and strain), and tire pressure in metric markets.

Curiosities

  • The pascal was adopted as the SI unit of pressure at the 14th CGPM in 1971, replacing the older mechanical units like dyne/cm² (CGS) and lbf/in² (imperial).
  • 1 Pa is roughly the pressure exerted by a thin layer of paper resting on a tabletop — about 0.0000099 atmospheres.
  • The millibar (mbar), traditionally used in meteorology, equals exactly 1 hPa (100 Pa). Most modern weather services have switched to hPa for SI compatibility.
  • Approximate equivalents: 1 Pa ≈ 0.000145 psi; 1 atm = 101,325 Pa = 1013.25 hPa = 14.696 psi.

Sources

Frequently Asked Questions

How many gigapascals are in one pascal?

One pascal equals 1 × 10-9 gigapascals. To convert, multiply the pascal value by 1 × 10-9. For the reverse, divide the GPa value by 1 × 10-9 (or multiply by 1 × 109).

What is 100 pascals in gigapascals?

100 pascals = 1 × 10-7 gigapascals. This is one of the most commonly searched conversions for this pair.

How precise is the pascal-to-GPa conversion?

The factor 1 × 10-9 is accurate to 6 significant figures, derived from international measurement standards. Our calculator uses full precision internally.

Looking for the reverse? Convert GPa to Pascal

Related Pressure Converters

Explore other pressure conversion tools:

Related in other categories:

Conversion factors verified against NIST, BIPM, ISO 80000-4 1 atm = 101 325 Pa by definition (BIPM). Last reviewed: March 2026
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.