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# Convert Inch to Millimetre

Written by Rahul Lath ### Convert Inch to Millimetre  I am Doubt solver AI, you can ask me anything. Yes, anything!

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Conversion of an inch to millimetre: Inch & millimetre are units of measurement of length and distance in the metric system. 1 inch (in) = 25.4 millimetres (mm). To convert inch to millimetres, multiply the given value in inches by 25.4. The resultant value will be the value in millimetres

Inches

in

Millimeters

mm

## What is an Inch?

Inch is a unit of measurement and is denoted as ‘in’ or simply by the symbol “. Some of the common uses include measuring the length of the screen of a smart TV screen, the height of a person, the size of a tyre and so on.

## What is a Millimetre?

In the International System of Units (SI), a millimetre is a unit of length equal to one-thousandth of a metre. It is denoted as ‘mm’ in short.

Common usage:

• Used to measure the size of the dial of a wristwatch
• used to measure the size of a diamond
• Used to measure the size of a coin

## How to convert Inch to Millimetre?

To convert the inch to the millimetre, multiply the required inches by 25.4 to get the value in millimetres. As
1 in = 25.4 mm.

The formula to convert inch to millimetre is given below:
X in = X × 25.4 mm
where X is the value of inches.

## Examples of Inch to Millimetre conversions

Problem 1: Convert 500 inches to millimetres.

Solution 1:

Step 1: The given inches is 500.
Step 2: To convert 500 inches to millimetres, substitute the given values at the required places in the formula. Hence,
Formula,
X in = X × 25.4 mm
500 in = 25.4 ×500 mm
= 12700 mm
Therefore, 500 inches is 12700 millimetres.

Problem 2: Convert 10 inches to millimetres.

Solution 2:

Step 1: The given inches is 10.
Step 2: To convert 10 inches to millimetres, substitute the values at the required places in the formula. Hence,
X in = X × 25.4 mm
10 in = 10×25.4 mm
= 254 mm
Therefore, 10 inches is 254 millimetres.

Problem 3:  Convert 15 inches to millimetres.
Solution3 :

Step 1: The given inches is 15.
Step 2: To convert 15 inches to millimetres, substitute the values at the required places in the formula. Hence,

X in = X × 25.4 mm
15 in = 15 × 25.4 mm
= 381 mm
Therefore, 15 inches is 381 mm.

Problem 4:  Convert 20 inches to millimetres.
Solution 4:

Step 1: The given inches is 20.
Step 2: To convert 20 inches to millimetres, substitute the values at the required places in the formula. Hence,

X in = X × 25.4 mm
20 in = 20 × 25.4 mm
= 508 mm
Therefore, 20 inches is 508 millimetres.

Problem 5:  Convert 30 inches to millimetres.

Solution 5:

Step 1: The given inches is 30.
Step 2: To convert 30 inches to millimetres, substitute the values at the required places in the formula. Hence,

X in = X × 25.4 mm
30 in = 30 × 25.4 mm
= 762 mm
Therefore, 30 inches is 762 millimetres.

## FAQs on the conversion of Inch to Millimetre

How do you convert inches to mm?
To convert the inch to the millimetre, multiply the required inches by 25.4 as
1 in = 25.4 mm.
Formula,
Y in = Y × 25.4

What is 1 inch equal to in mm?
1 in = 25.4 mm

What size are 2 inches in mm?
2 in = 50.8 mm

What is the metric conversion of 1 inch?
The metric conversion of 1 inch to the millimetre is,
1 inch = 25.4 millimetres

What does 25 in convert to in mm?
To convert the inch to the millimetre, multiply the required inches by 25.4 as
1 in = 25.4 mm.
Formula,
Y in = Y × 25.4
Hence 25 in is,
25 in = 25 × 25.4 mm
= 635 mm
Therefore, 25 inches is 635 mm.

Convert 100 inch to millimetre.
To convert 100 inch to millimetre, multiply the required inches by 25.4 as
1 in = 25.4 mm
Formula,
Y in = Y x 25.4
Hence, 100 in is,
100 in = 100 x 25.4 mm
= 2540 mm
Therefore, 100 inches is 2540 mm.

Convert 1000 inch to millimetres.
To convert 1000 inch to millimetre, multiply the required inches by 25.4 as
1 in = 25.4 mm
Formula,
Y in = Y x 25.4
Hence, 1000 in is,
100 in = 1000 x 25.4 mm
= 25400 mm
Therefore, 1000 inches is 25400 mm.

Convert 1/2 inch to mm.
To convert 1/2 inch to millimetre, multiply the required inches by 25.4 as
1 in = 25.4 mm
Formula,
Y in = Y x 25.4
Hence, 1/2 in is,
100 in = 1/2 x 25.4 mm
= 12.7 mm
Therefore, 1/2 inches is 12.7 mm.

References:
SI Base units

Written by

Rahul Lath

Reviewed by

Arpit Rankwar