# Formula for absolute pressure? - Fluid Mechanics

**Q. What is the correct formula for absolute pressure?***- Published on 05 Aug 15***a.** P_{abs} = P_{atm} – P_{gauge}

**b.** P_{abs} = P_{vacuum} – P_{atm}

**c.** P_{abs} = P_{vacuum} + P_{atm}

**d.** P_{abs} = P_{atm}+ P_{gauge}

**ANSWER: P**_{abs} = P_{atm}+ P_{gauge}