Drag Coefficient
Calculate Drag Coefficient instantly with the exact formula and a worked example.
Drag Coefficient
Drag forceN
Fluid density (air 1.225, water 1000)kg/m³
Speedm/s
Frontal (cross-sectional) aream²
Drag Coefficient
0.408163
Dynamic pressure
245Pa
Closest shape
Hemisphere (convex side)
Cd of this shape
0.42
More about: Drag Coefficient
What it calculates
The “Drag Coefficient” calculator computes Drag Coefficient from 4 parameters: drag force (N), fluid density (air 1.225, water 1000) (kg/m³), speed (m/s), frontal (cross-sectional) area (m²).
A standard physics formula used in educational and engineering tasks.
Example calculation
With parameters Drag force = 10 N, Fluid density (air 1.225, water 1000) = 1.23 kg/m³, Speed = 20 m/s, Frontal (cross-sectional) area = 0.1 m² the result is 0.4082.
How to use
- Enter drag force, fluid density (air 1.225, water 1000), speed and frontal (cross-sectional) area — each field above is adjustable with a slider.
- Drag Coefficient is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
Related calculators
FAQ
How is Drag Coefficient calculated?
The Drag Coefficient calculator computes Drag Coefficient from drag force, fluid density (air 1.225, water 1000), speed, frontal (cross-sectional) area. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Drag Coefficient calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
More calculators in this category
Explore related free tools