Which statement is correct for converting psi to bar?

Which statement is correct for converting psi to bar?

• A. 1 psi equals 1 bar.
• B. 1 psi equals 0.5 bar.
• C. 1 psi ≈ 0.06895 bar; multiply psi by 0.06895 to obtain bar.
• D. Psi and bar are not convertible.

Answer: (C)

Pressure units psi and bar come from fixed metric relationships, so you convert by a constant factor. 1 psi is about 6,895 Pa, while 1 bar is 100,000 Pa, giving 1 psi ≈ 0.06895 bar. That means to get bar from psi, multiply by 0.06895. For example, 50 psi × 0.06895 ≈ 3.4475 bar. Since 1 bar is about 14.5038 psi, the other options aren’t correct.

Pressure units psi and bar come from fixed metric relationships, so you convert by a constant factor. 1 psi is about 6,895 Pa, while 1 bar is 100,000 Pa, giving 1 psi ≈ 0.06895 bar. That means to get bar from psi, multiply by 0.06895. For example, 50 psi × 0.06895 ≈ 3.4475 bar. Since 1 bar is about 14.5038 psi, the other options aren’t correct.