Conversions

Standard atmospheres to Megapascals

Convert standard atmospheres to megapascals (atm to MPa). 1 atm = 0.101325 MPa. Use the calculator, formula and conversion table.

A quick reference1 atm = 0.101325 MPa
Megapascals to Standard atmospheres
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How to convert standard atmospheres to megapascals

Multiply the amount in standard atmospheres by 0.101325 to get megapascals. The displayed factor and results are rounded to 12 significant digits.

MPa = atm × 0.101325

Worked example

1 atm = 0.101325 MPa. Change the amount in the calculator above to use your own value.

Units and assumptions

Uses pascals as the base unit. One standard atmosphere is 101,325 Pa and one bar is 100,000 Pa. Results are rounded for display.

Calculator results use floating-point arithmetic and are rounded for display. The reference table below uses up to 12 significant digits.

Standard atmospheres to Megapascals table

Common values, rounded for display
Standard atmospheres (atm)Megapascals (MPa)
00
10.101325
50.506625
101.01325
252.533125
10010.1325
1,000101.325

About this conversion

What is the formula for standard atmospheres to megapascals?

MPa = atm × 0.101325. Multiply the amount in standard atmospheres by 0.101325 to get megapascals. The displayed factor and results are rounded to 12 significant digits.

How do I convert back to standard atmospheres?

Use the megapascals to standard atmospheres calculator to reverse this conversion. You can also use Swap units in the calculator above.

Can I use a different pair of units?

Choose another unit in the calculator, or open the pressure converter to browse all supported pairs.

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