How the conversion works
1 MPa × 145.03773773 = 145.037738 psi. The quick answer is rounded for readability; use the live calculator below for another value or more precision.
MPa to PSI Converter
Convert megapascals to psi for engineering and pressure specifications, with a quick 1 MPa reference and live calculator.
Quick reference
145.037738 psi
1 MPa → psi
When this is useful
Use this conversion when a specification, drawing, label or calculation expresses the same physical quantity in MPa and psi. The live parent converter keeps the source, target and broader equivalent-unit context together.
Quick comparison table
Compare the current answer with nearby or reverse values from the same converter family. Open any row to keep the units preselected and change the number.
Convert another value
Editable live calculator
Change any input — the result updates immediately
No hidden assumptions. Inputs, units and the working stay visible so you can check the calculation.
Calculated result
145.037738 psi
Conversion factor: 1 MPa = 145.03773773 psi
Same value in every supported unit
Pascal
1,000,000 Pa
Hectopascal
10,000 hPa
Kilopascal
1,000 kPa
Megapascal
1 MPa
Gigapascal
0.001 GPa
Bar
10 bar
Millibar
10,000 mbar
Pound-force per square inch
145.037738 psi
Kip per square inch
0.145038 ksi
Standard atmosphere
9.869233 atm
Torr
7,500.616827 Torr
Millimetre of mercury (conventional)
7,500.615758 mmHg
Inch of mercury (0 °C conventional)
295.299802 inHg
Kilogram-force per square centimetre
10.197162 kgf/cm²
Show the working
- 1. Convert 1 MPa to the Pa base: 1 × 1,000,000 = 1,000,000 Pa.
- 2. Convert from Pa to psi: 1,000,000 ÷ 6,894.75729317 = 145.037738 psi.
- 3. Direct factor check: 1 × 145.03773773 = 145.037738 psi.
Unit conversion does not change a gauge reading into absolute pressure or vice versa. Gauge/absolute conversion also needs the applicable ambient pressure.
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A quick note before you use the number
Gauge and absolute pressure use different zero references. This page converts units only and does not add or subtract atmospheric pressure automatically.
Open the full Pressure Converter — PSI, Bar, kPa, MPa, atm, Torr & mmHg