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# Knudsen Number Calculator

Knudsen Number Calculator is used to calculate the ratio of the mean free path length of the molecules of a fluid to a characteristic length.

## Input

## Output

### Formula

**λ**= Mean Free Path**Kn**= Knudsen Number**L**= Representative Physical Length Scale

### Defination / Uses

The dimensionless number is referred to as the Knudsen Number. The Knudsen Number is the ratio of a representative physical length scale to the molecular mean free path length.

### Input

## Output

### Formula

**L**= Representative Physical Length Scale**Kn**= Knudsen Number**λ**= Mean Free Path

### Defination / Uses

The dimensionless number is referred to as the Knudsen Number. The Knudsen Number is the ratio of a representative physical length scale to the molecular mean free path length.

## Input

## Output

### Formula

**Kn**= Knudsen Number**L**= Representative Physical Length Scale**λ**= Mean Free Path

### Defination / Uses

The dimensionless number is referred to as the Knudsen Number. The Knudsen Number is the ratio of a representative physical length scale to the molecular mean free path length.

### How to use knudsen number calculator?

There are only two basic steps.

- First select the option from dropdown. What you need to calculate.
- Then add the other values in their corresponding fields.

Thats it! You will get your answer in less than a second. Use upper given formula in case of manual calculation.

In a nutshell, the Knudsen Number is the proportion of a fluid's mean free path length to a characteristic length. It's a term for the movement of low-density gases. The ratio of the mean free path length of a fluid's molecules to a characteristic length is calculated using this advanced online Knudsen number calculator. Our Knudsen number calculator is a straightforward tool for calculating the Knudsen number, which is one of fluid mechanics' dimensionless characteristic values. For quick calculation use our weetools. No sign-up, registration OR captcha is required to use this tool.