Convert Inch to Millimetre

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.

Related conversions

References:
SI Base units

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