Mean Free Path Calculator

0.0(0)

Calculates the mean free path of a particle, which is the average distance a particle travels between collisions.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Absolute Temperature, Pressure, and Particle Diameter in the units shown.

Step 2

Read Mean Free Path in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

See the inputs and their calculated results.

Absolute Temperature: 273.15 K; Pressure: 101,325 Pa; Particle Diameter: 0.00000000038 m

Mean Free Path: 0.00000005801440085 m

Absolute Temperature: 298 K; Pressure: 101,325 Pa; Particle Diameter: 0.00000000038 m

Mean Free Path: 0.00000006329229893 m

Absolute Temperature: 273.15 K; Pressure: 101,325 Pa; Particle Diameter: 0.00000000028 m

Mean Free Path: 0.0000001068530546 m

Explore the topic

Find calculators for chemistry, biology, lab dilution, concentration, osmolarity, genetics, physics, and experimental planning.

People Also Calculate

Continue with another tool on a related topic.

Calculates the horizontal angle (azimuth) of a celestial body or a point relative to a reference direction (e.g., North).

Analyzes forces and distances in a lever system based on the fulcrum position.

Calculates electrical power using voltage, current, and resistance, based on the formulas P=VI, P=I²R, and P=V²/R.

Calculates the component values (e.g., in L-networks) needed to match impedances for maximum power transfer.