# Frequent question: How do you convert French to MM?

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## How do you convert French size to MM?

A round catheter of 1 French has an external diameter of 1⁄3 mm, and therefore the diameter of a round catheter in millimetres can be determined by dividing the French size by 3: 1 mm = 3 Fr. 1 Fr = 1/3 mm. For example, if the French size is 9, the diameter is 9/3 = 3.0; mm.

## How many millimeters is 1 French?

Size Correspondence

1 Fr is equivalent to 0.33 mm = . 013″ = 1/77″ of diameter. Thus the size in French units is roughly equal to the circumference of the catheter in millimeters.

## How do you convert French to CM?

Conversion chart – French gauge to centimeters

1. French gauge to centimeters = 0.033 cm.
2. French gauge to centimeters = 0.067 cm.
3. French gauge to centimeters = 0.10 cm.
4. French gauge to centimeters = 0.13 cm.
5. French gauge to centimeters = 0.17 cm.
6. French gauge to centimeters = 0.20 cm.

## How do you convert metric to MM?

To convert a meter measurement to a millimeter measurement, multiply the length by the conversion ratio. The length in millimeters is equal to the meters multiplied by 1,000.

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## What does FR mean catheter?

The French size of a catheter is determined by a simple multiplication of 3 (diameters in millimeters multiplied by 3 = the French size). For example, if a catheter has a diameter of 4.7 millimeters, then the French (Fr) size is 14.

## What does MM stand for in French?

Madame, Mademoiselle, Monsieur. In normal polite usage, a person’s name is usually preceded by: Monsieur, for males (etymologically, monsieur means “my lord”, cf. English “sir”); pronounced [məsjø]; plural: messieurs, pronounced [mesjø]; abbreviation: singular M.; plural: MM..

## What gauge is a 4 French catheter?

As opposed to the “Birmingham Gauge” used for hypodermic needle tubing, French catheter sizes increase in diameter as their numerical designation increases.

French Catheter Gauge Size Decimal and Metric Equivalents.

Gauge Dia. in mm Dia. in Inches
4 1.33 0.053″
5 1.67 0.066″
6 2 0.079″
7 2.3 0.092″

## Why are catheters measured in French?

Why Is the French Scale Used for Catheter Sizes? The French Scale makes it easy to size things that are extremely small in diameter. Catheters are just millimeters wide, with different sizes often being just fractions of a millimeter apart.

5’6 = 167.64 cm.

5’7 = 170.18 cm.

## How much CM is 5 5 feet?

5’5 = 165.1 cm

Convert 5 ft 5 to centimeters.

## Is metric the same as millimeters?

The metric system is used to measure the length, weight or volume of an object. Length is measured in millimetres (mm), centimetres (cm), metres (m) or kilometres (km).

## What is a 32 mm in standard?

Metric / Standard Wrench Conversion Chart

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Bolt Diameter Metric Standard
32mm 1-1/4″
7/8″ 34mm 1-5/16″
35mm 1-3/8″
1″ 38 mm 1-1/2″

## How do you convert mm to mm2?

The square millimeters unit number 0.79 mm2, sq mm converts to 1 ∅ 1mm, one circle one millimeter diam.. It is the EQUAL area value of 1 circle one millimeter diam. but in the square millimeters area unit alternative.