30 Pounds per square inch to Bar (30 psi to bar)

Formula and worked answer

bar = psi × 0.0689476

Substituting 30 for psi: 30 × 0.0689476 = 2.0684 bar. The factor 0.0689476 comes from the exact international definition of the Pound per square inch relative to the Bar, so this answer is precise rather than rounded.

What does 30 Pounds per square inch represent?

30 psi (2.07 bar) is the typical recommended cold-tyre pressure printed on the door-jamb sticker of US-market mid-size sedans and SUVs and a frequent reference figure on American gas-station tyre-inflation pumps. Converted to metric the figure is 2.07 bar, which European tyre-pressure recommendations instead post as 2.0 bar or 2.1 bar on the equivalent vehicle's metric door-jamb sticker. The 0.07 bar gap matters for vehicle dynamics: a US 30-psi recommendation translated naively to "2.0 bar" leaves the tyre 5 kPa under-inflated, which is enough to elevate rolling resistance and accelerate shoulder wear over a long-distance drive on a fully loaded vehicle.

Values near 30 psi

• 25 psi=1.7237 bar
• 26 psi=1.7926 bar
• 27 psi=1.8616 bar
• 28 psi=1.9305 bar
• 29 psi=1.9995 bar
• 31 psi=2.1374 bar
• 32 psi=2.2063 bar
• 33 psi=2.2753 bar
• 34 psi=2.3442 bar
• 35 psi=2.4132 bar

psi to bar reference table around 30

Convert a different value

Looking for a different number of Pounds per square inch? Use the full psi to bar converter to enter any value, see the worked formula, and read the full background on the Pound per square inch and the Bar. To go the other direction, the bar to psi converter applies the inverse factor and is the page to bookmark if you usually start in Bar.