Free Pitot Tube Velocity Calculator
Calculate the flow velocity from a pitot tube reading: v = sqrt(2 * (P_total - P_static) / rho).
Pa
Pa
kg/m3
Flow Velocity
33.1970 m/s
Dynamic Pressure675.00 Pa
Flow Velocity vs Total (Stagnation) Pressure
Pitot Tube
A pitot tube measures airspeed by comparing stagnation (total) and static pressure.
Formula
v = sqrt(2 (P_total - P_static) / rho)
where the difference (P_total - P_static) is the dynamic pressure q = 0.5 rho v^2.
Pitot tubes are standard instruments on aircraft for measuring airspeed.
Example Calculation
Aircraft: P_total = 102 000 Pa, P_static = 101 325 Pa, rho = 1.225 kg/m3.
- 01dP = 102000 - 101325 = 675 Pa
- 02v = sqrt(2 * 675 / 1.225)
- 03v = sqrt(1102)
- 04v = 33.2 m/s = 119.5 km/h
Frequently Asked Questions
Learn More
Understanding Newton's Laws of Motion
A comprehensive guide to Newton's three laws of motion. Learn about inertia, force and acceleration, action-reaction pairs, and how these principles govern everyday physics.