1 psi is approximately equal to how many bar?

1 psi is approximately equal to how many bar?

• A. 0.00689 bar
• B. 0.0689 bar
• C. 0.689 bar
• D. 6.89 bar

Answer: (B)

Understanding pressures across units helps when reading specifications that use different systems. The key is using a consistent conversion: 1 bar equals 100 kPa, and 1 psi equals about 6.89476 kPa. So 1 psi is 6.89476 kPa divided by 100 kPa per bar, giving about 0.06895 bar. Rounded, that’s 0.0689 bar. That makes the correct choice the one near 0.0689 bar. The other values are notably different: roughly tenfold smaller (0.00689 bar), tenfold larger (0.689 bar), or about a hundredfold larger (6.89 bar).

Understanding pressures across units helps when reading specifications that use different systems. The key is using a consistent conversion: 1 bar equals 100 kPa, and 1 psi equals about 6.89476 kPa. So 1 psi is 6.89476 kPa divided by 100 kPa per bar, giving about 0.06895 bar. Rounded, that’s 0.0689 bar.

That makes the correct choice the one near 0.0689 bar. The other values are notably different: roughly tenfold smaller (0.00689 bar), tenfold larger (0.689 bar), or about a hundredfold larger (6.89 bar).