Megapascal to Atmosphere Converter

1 Megapascal equals 9.86923 Atmosphere. To convert Megapascal to Atmosphere, multiply the value by 9.86923.

To convert Megapascal to Atmosphere, multiply the value by 9.86923. For example, 10 MPa = 98.6923 atm.

The Megapascal (MPa) is equal to 1,000,000 pascals, used in hydraulics, material strength testing, and high-pressure engineering applications.

The Atmosphere (atm) is equal to 101,325 pascals, representing average atmospheric pressure at sea level, used as a reference in chemistry and diving.

100 MPa equals 986.923 atm. To convert Megapascal to Atmosphere, multiply the value by 9.86923.

Most passenger cars require 2.0–2.5 bar (29–36 psi) for front and rear tires. Always check the sticker on the inside of the driver's door jamb — not the number printed on the tire itself, which is the maximum pressure, not the recommended one. Pressure should be checked when tires are cold.

Road bike tires (23–28 mm wide) typically run at 6.0–8.0 bar (87–116 psi). Wider tires (32–38 mm) use 4.5–6.0 bar (65–87 psi). Mountain bike tires run much lower, at 1.5–2.5 bar (22–36 psi). The correct pressure depends on rider weight, tire width, and terrain.

Standard atmospheric pressure at sea level is 1.01325 bar, 101.325 kPa, or 14.696 psi. Weather reports use hectopascals (hPa) — a "normal" day is around 1013 hPa (1.013 bar). High pressure (fair weather) is above 1020 hPa; low pressure (storms) is below 1000 hPa.

Blood pressure is measured in mmHg (millimeters of mercury), not bar or psi. A healthy reading is below 120/80 mmHg. High blood pressure (hypertension) is defined as 130/80 mmHg or higher. For reference: 120 mmHg systolic = 0.160 bar = 2.32 psi.

FIFA regulations require a match soccer ball to be inflated to 0.6–1.1 bar (8.7–16 psi) above atmospheric pressure. Most balls are inflated to about 0.8–0.9 bar (11.6–13 psi) gauge pressure. An NFL American football is inflated to 12.5–13.5 psi (0.86–0.93 bar) gauge.