Pressure Converter
Convert between different units of pressure Convert between 19 different units instantly with our free online tool.
Formula: 1 Pa × 0.001 = 0.001 kPa
Available Pressure Units
19 units supported for instant conversion
About Pressure Conversion
Our free online pressure converter helps you quickly and accurately convert between 19 different units of pressure. Whether you're a student, professional, or simply need everyday conversions, you get instant, precise results with the formula displayed.
Convert between different units of pressure This converter supports both metric and imperial units, making it ideal for international use. All conversions use internationally recognized standards and formulas.
Did You Know?
A standard car tire is inflated to 30–35 psi (2.0–2.4 bar). Under-inflation by just 20% can reduce fuel economy by 0.3% and significantly increase tire wear.
The deepest point in the ocean, the Challenger Deep in the Mariana Trench, is about 11 km below the surface. The pressure there is over 1,086 bar — crushing a car as easily as crumpling paper.
Weather forecasters express atmospheric pressure in hectopascals (hPa) or millibars (equivalent units). A "high pressure" day is typically above 1,013 hPa; "low pressure" storms can drop below 960 hPa.
The pressure inside a diamond-anvil cell — the lab tool used to create the world's hardest materials — can exceed 5 million bar (5 million atm). This is higher than the pressure at Earth's core.
Why Use Our Pressure Converter?
Instant Results
Conversions update as you type — no button clicks needed.
High Precision
Uses internationally standardized conversion factors (SI & NIST).
19+ Units
Convert between 19 pressure units used around the world.
API & AI Ready
REST API and MCP server let apps and AI assistants convert programmatically.
Common Pressure Conversion Table
Quick reference: Pascal (Pa) to other common units.
| Pascal (Pa) | Kilopascal (kPa) | Megapascal (MPa) | Gigapascal (GPa) | Bar (bar) |
|---|---|---|---|---|
| 1 | 0.001 | 1.000000e-6 | 1.000000e-9 | 1.000000e-5 |
| 2 | 0.002 | 2.000000e-6 | 2.000000e-9 | 2.000000e-5 |
| 5 | 0.005 | 5.000000e-6 | 5.000000e-9 | 5.000000e-5 |
| 10 | 0.01 | 1.000000e-5 | 1.000000e-8 | 0.0001 |
| 25 | 0.025 | 2.500000e-5 | 2.500000e-8 | 0.00025 |
| 50 | 0.05 | 5.000000e-5 | 5.000000e-8 | 0.0005 |
| 100 | 0.1 | 1.000000e-4 | 1.000000e-7 | 0.001 |
How to Use This Pressure Converter
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