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Unit converter

Pressure Converter

Convert between bar, PSI, atmospheres, kPa, mmHg, and more.

PSI to Megapascals

100 PSI = 0.689476 Megapascals
0.689476

About these units

PSI

Pounds per square inch is the common pressure unit in the US, used for tires, gas, and plumbing. Car tires run around 32 psi.

Megapascals

The megapascal equals one million pascals and is used for high pressures in engineering, hydraulics, and material strength.

Conversion formula

To convert PSI to Megapascal, multiply the value by 0.00689476 (6.89476 × 10⁻³).

Quick reference

PSIMegapascals
10.00689476 (6.89476 × 10⁻³)
20.01378952
50.0344738
100.0689476
1000.689476

Frequently asked questions

How many Megapascals are in one PSI?
1 PSI = 0.00689476 (6.89476 × 10⁻³) Megapascals.
How many PSI are in one Megapascal?
1 Megapascal = 145.0376808 PSI.

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