Pressure Converter
pressure converter
Instant conversion. Swap anytime.
Engineering, lab, tire, and instrumentation pressure conversions with exact relationships and basis-safe unit switching.
Converted value
14.503774psi
Live conversion at 6-decimal precision. Pressure basis stays the same.
Common pairs
Live conversionPressure units change scale, not basis. Keep psi(a) with bar(a) and psi(g) with bar(g). Absolute pressure cannot be negative. Commas and scientific notation are supported (for example 1,234.5 or 1e-3).
Conversion updates automatically as you change value, units, or precision.
Advanced options
Batch conversion
Convert multiple values only when you need them, without crowding the main workflow.
Examples
Conversion details
Formula and exact relation
- 1 bar = 14.503773773022 psi
- 1 psi = 0.068947572932 bar
Formula form: psi = bar × 14.503773773022. Display rounding follows your selected precision and does not change base conversion math.
Context outputs
SI / metric
100,000 Pa • 100 kPa • 0.1 MPa
Engineering
1 bar • 14.503774 psi • 0.98692327 atm
Pressure basis
Convert bar(a) to psi(a) or bar(g) to psi(g) consistently.
Quick table (bar → psi)
| bar | psi |
|---|---|
| 1 | 14.503774 |
| 5 | 72.518869 |
| 10 | 145.037738 |
| 50 | 725.188689 |
| 100 | 1,450.377377 |
| 200 | 2,900.754755 |
| 500 | 7,251.886887 |
| 1,000 | 14,503.773773 |
Formula
Converted value = Input value × (From unit to base) / (To unit to base) - Pressure values are normalized through pascals (Pa).
- Input pressure is converted to base pressure first.
- Base pressure is then converted to target unit.
- Unit conversion does not change gauge or absolute pressure basis.
Example
Worked example: 2 bar to psi
- 1 2 bar = 200000 Pa
- 2 1 psi = 6894.757293168 Pa
- 3 200000 / 6894.757293168 = 29.0075
2 bar is about 29.0075 psi.
How
- Enter a pressure value using decimal, comma-formatted, or scientific notation input.
- Choose source and destination units, or tap a common pair for faster reverse conversion.
- Adjust precision when you need reporting-friendly output, then open details for exact relations and quick tables.
- Keep gauge values with gauge values and absolute values with absolute values throughout the conversion.
Avoid
- Mixing gauge and absolute pressure concepts.
- Confusing MPa and kPa scale by 1000x.
- Using mmHg and torr as exactly identical without context.
FAQ
Can I convert MPa to psi?
Yes, MPa and psi are available in this pressure converter.
Is atmosphere (atm) supported?
Yes, atm is included as a selectable unit.
Does converting psi to bar change gauge pressure into absolute pressure?
No. Unit conversion does not change the pressure basis. Convert psi(g) to bar(g), or psi(a) to bar(a), consistently.
Can I enter negative pressure values?
Yes for differential or gauge-style workflows. Absolute pressure still cannot be physically negative, so keep the basis consistent with your source data.
What base unit is used?
Pascal (Pa) is the internal base pressure unit.
Switch
Switch12
No match.