Inches To Millimeters (in To Mm) - Metric Conversion

Inch to mm (inches to millimeters) conversion calculator

Centimeters Chains Decimeters Feet Furlongs Inches International Nautical Miles Kilometers Leagues Lightyears Meters Microinches Micrometer Microns Miles Millimeters Nautical Miles Parsecs UK Leagues UK Nautical Leagues UK Nautical Miles US Leagues US Nautical Miles Yards → Centimeters Chains Decimeters Feet Furlongs International Nautical Miles Kilometers Leagues Lightyears Meters Microinches Micrometer Microns Miles Millimeters Nautical Miles Parsecs UK Leagues UK Nautical Leagues UK Nautical Miles US Leagues US Nautical Miles Yards

x/y 1/2 1/4 3/4 1/8 3/8 5/8 7/8 1/16 3/16 5/16 7/16 9/16 11/16 13/16 15/16 1/32 3/32 5/32 7/32 9/32 11/32 13/32 15/32 17/32 19/32 21/32 23/32 25/32 27/32 29/32 31/32 1/64 3/64 5/64 7/64 9/64 11/64 13/64 15/64 17/64 19/64 21/64 23/64 25/64 27/64 29/64 31/64 33/64 35/64 37/64 39/64 41/64 43/64 45/64 47/64 49/64 51/64 53/64 55/64 57/64 59/64 61/64 63/64

For fractions of an inch please select from the "x/y" options above

1in = 25.4mm

Accuracy 1 significant figure 2 significant figures 3 significant figures 4 significant figures 5 significant figures 6 significant figures 7 significant figures 8 significant figures

Note: Fractional results are rounded to the nearest 1/64. For a more accurate answer please select "decimal" from the options above the result.

Note: You can increase or decrease the accuracy of this answer by selecting the number of significant figures required from the options above the result.

Note: For a pure decimal result please select "decimal" from the options above the result.

mm to inches (Swap units)

Inches to Millimeters conversion formula

Millimeters = Inches * 25.4

Inches to Millimeters calculation

Millimeters = Inches * 25.4

Millimeters = 1 * 25.4

Millimeters = 25.4

How do you convert inches to millimeters?

To convert inches to mm you need to multiply the value in mm by 25.4 as there are this many millimeters in an inch.

For example, suppose you have a length of 100 inches and you want to convert it to millimeters: multiply 100 by 25.4 which gives you 2,540mm.

To make the conversion easier, you can use the inches to millimeters conversion calculator provided on this page. This tool will calculate the value for you and you can also enter the inch value in fractional form if required. It is important to note that when converting between inches and millimeters, it is always a good idea to round the result to the desired level of precision, depending on the context of the measurement.

Why would one convert inches to millimeters?

Converting millimeters to inches is a common task in engineering, manufacturing and construction.

Inches are imperial measurements that are normally used in the United States and United Kingdom. Millimeters are a unit of the metric system used worldwide. It is often necessary to convert inches to millimeters when following instructions of specifications in a unit unfamiliar to you.

Millimeters are used where high precision is required such as machining and fabrication. The smaller unit the simpler it is to allow for finer measurements. The metric system offers a logical system of measurement as converting between other metric units are simple and they are based on factors of 10.

What are millimeters?

Millimeters are a small unit of length measurement in the metric system. One millimeter is equal to a thousandth of a meter. This means that millimeters are used when measuring small distances or dimensions such as the thickness of a sheet of paper or a small object.

Millimeters are widely used worldwide especially in engineering. They provide a convenient unit of measurement for fine details.

Millimeters are used in the fashion industry for jewelry and fabric widths. Millimeters are also used in meteorology to record rainfall or snowfall.

1000mm is equal to a meter which is the SI unit of length.

Some common Inches to Millimeters conversions

1/4 inch to mm = 6.35mm

3/8 inch to mm = 9.525mm

3/8 to mm = 9.525mm

1/2 inch to mm = 12.7mm

3/4 inch to mm = 19.05mm

1 inch to mm = 25.4mm

1 1/4 inch to mm = 31.75mm

1 1/4 to mm = 31.75mm

2 inches to mm = 50.8mm

3 inches to mm = 76.2mm

4 inches to mm = 101.6mm

5 inches to mm = 127mm

6 inches to mm = 152.4mm

What are inches?

Inches are mainly used in the United States as well as sometimes in the United Kingdom.

An inch is an imperial unit which is primarily used in the United States. It is defined as a twelth (1/12th) of a foot. Inches are used to measure smaller distances such as the length of a pencil or the width of a book. Rather than using decimals, Inches are often divided into fractions such as halves, quarters, and eighths.

Converting inches to centimeters involves multiplying by the conversion factor 2.54. For example, 100 inches would be 254 centimeters. The reverse is also true, to convert centimeters to inches you divide the number of centimeters by 2.54. For example, 50 centimeters would be approximately 19.69 inches.

Is there a simple way to convert inches to mm?

The actual formula is mm = in * 25.4 which is approximately multiply by 25. If you multiply the amount of inches by 100 and then divide by 4 you will get an approximate answer. Worked Example: 3 inch x 300 = 100, 300 / 4 = 75mm. This method is close enough for many purposes.

What is the symbol for inches?

The ISO symbol for inch is "in", but it's frequently marked as a double prime ("). Feet is often marked as a single prime ('). So 5 feet 3 inches can be marked as 5' 3".

What size is 1 inch in MM?

There are 25.4mm in one inch.

How many Inches are in 1 Millimeter?

There are 0.03908 Inches in 1 Millimeter

How long is 1 Inch?

1 inch - A normal-sized paperclip

2 inches - An AA battery

3 inches - The length of a standard post-it note

8 inches - Approx. length of a standard house brick, or a standard paperback book

8 -9 Inches - Approx length of a normal dinner knife

12 inch - A standard school ruler

How long is 1 Millimeter?

2 Millimeters - A grain of short rice

5 Millimeters - The eraser on the end of a pencil

55 Millimeters - Height of a debit/credit/charge card

86.6 Millimeters - Length of a debit/credit/charge card

120 Millimeters - Width of a standard CD

300 Millimeters - A standard (30cm) ruler

What are the most common misspellings of Millimeters?

Millimetre (not actually a mis-spelling - this is the British English spelling)

Milimeter

Can I do the opposite conversion - ie Millimeters to Inches - on this site?

Yes - just click here to use our Millimeters to Inches calculator

What is the difference between Millimetres and Millimeters?

There is no difference between Millimeters and Millimetres - they are just different ways of spelling the same thing. Millimetres is the British English spelling, and Millimeters is the American English spelling.

Is 5 mm equal to 1/2 inch?

No, 5mm is 0.19685 inch (or 13/64 inch). A half inch is 12.7mm.

How many mm is 1 ⁄ 4 inch?

1⁄4 inch is 6.35mm - please see this page: 1/4 inch in mm

What is 4 inches as mm?

4 inches as mm = 101.6mm

Which countries use inches?

The United States is the most notable country that uses inches but a large number of people still use them in the United Kingdom as well. In the US, inches are the standard in construction and engineering. Inches are also common in determining a person's height or the size of television screens.

Although the UK has officially adopted the metric system, inches are still found in certain area particularly in construction. This is due to the historical influence of the imperial system. In the UK inches are also used for body height and objects that were traditionally measured this way such as vinyl records.

Which countries use millimeters?

A majority of countries worldwide have adopted the metric system and as such use millimeters.

In these countries millimeters are the preferred unit for measuring dimensions of building materials, such as pipes, beams, and panels. Millimeters are found in manufacturing for precision measurements, machinery, and tools. Millimeters are also used in medicine and are used in the fashion and textile industry.

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Inches to Millimeters table

Starting value Increment Increment: 1000 Increment: 100 Increment: 20 Increment: 10 Increment: 5 Increment: 2 Increment: 1 Increment: 0.1 Increment: 0.01 Increment: 0.001 Fractional: 1/64 Fractional: 1/32 Fractional: 1/16 Fractional: 1/8 Fractional: 1/4 Fractional: 1/2 Accuracy Select resolution 1 significant figure 2 significant figures 3 significant figures 4 significant figures 5 significant figures 6 significant figures 7 significant figures 8 significant figures Inches Millimeters 0in 0.00000mm 1in 25.40000mm 2in 50.80000mm 3in 76.20000mm 4in 101.60000mm 5in 127.00000mm 6in 152.40000mm 7in 177.80000mm 8in 203.20000mm 9in 228.60000mm 10in 254.00000mm 11in 279.40000mm 12in 304.80000mm 13in 330.20000mm 14in 355.60000mm 15in 381.00000mm 16in 406.40000mm 17in 431.80000mm 18in 457.20000mm 19in 482.60000mm Inches Millimeters 20in 508.00000mm 21in 533.40000mm 22in 558.80000mm 23in 584.20000mm 24in 609.60000mm 25in 635.00000mm 26in 660.40000mm 27in 685.80000mm 28in 711.20000mm 29in 736.60000mm 30in 762.00000mm 31in 787.40000mm 32in 812.80000mm 33in 838.20000mm 34in 863.60000mm 35in 889.00000mm 36in 914.40000mm 37in 939.80000mm 38in 965.20000mm 39in 990.60000mm Inches Millimeters 40in 1,016.00000mm 41in 1,041.40000mm 42in 1,066.80000mm 43in 1,092.20000mm 44in 1,117.60000mm 45in 1,143.00000mm 46in 1,168.40000mm 47in 1,193.80000mm 48in 1,219.20000mm 49in 1,244.60000mm 50in 1,270.00000mm 51in 1,295.40000mm 52in 1,320.80000mm 53in 1,346.20000mm 54in 1,371.60000mm 55in 1,397.00000mm 56in 1,422.40000mm 57in 1,447.80000mm 58in 1,473.20000mm 59in 1,498.60000mm Inches Millimeters 60in 1,524.00000mm 61in 1,549.40000mm 62in 1,574.80000mm 63in 1,600.20000mm 64in 1,625.60000mm 65in 1,651.00000mm 66in 1,676.40000mm 67in 1,701.80000mm 68in 1,727.20000mm 69in 1,752.60000mm 70in 1,778.00000mm 71in 1,803.40000mm 72in 1,828.80000mm 73in 1,854.20000mm 74in 1,879.60000mm 75in 1,905.00000mm 76in 1,930.40000mm 77in 1,955.80000mm 78in 1,981.20000mm 79in 2,006.60000mm