Convert 8 mm to Fractional Inches

"Millimeters to Fractional Inches" Calculator

Convert

mm

to fractional inches

How many fractional inches in 8 millimeters?

Answer

8 mm = 5/16" (0.315")

8 Millimeters approximately equal to 5/16"

(Exact decimal: 0.315″)

💡 Practical Application:

For working with 8 mm fasteners, you can use a 3/8" SAE wrench (9.525 mm, 1.53 mm larger).

SAE sizes are commonly used in American cars and tools.

Explanation of 8 mm to Fractional Inches Conversion

Millimeters to Fractional Inches Conversion Formula: in = mm ÷ 25.4

To convert 8 millimeters to fractional inches:

  1. First, convert to decimal inches: 8 ÷ 25.4 = 0.315″
  2. Then, find the closest fraction with denominator up to 64
  3. Result: 5/16"

8 mm ÷ 25.4

=

0.315″

5/16"

See Also

About "Millimeters to Fractional Inches" Calculator

This converter will help you to convert Millimeters to Fractional Inches (mm to SAE). For example, it can help you find out how many fractional inches in 8 millimeters? (The answer is: 5/16"). Enter the number of millimeters (e.g. '8') and hit the 'Convert' button.

"Millimeters to Fractional Inches" Calculator

Convert

mm

to fractional inches

Millimeters to Fractional Inches Conversion Table

MillimetersFractional InchesDecimal Inches
1 mm3/64"0.0394"
2 mm5/64"0.0787"
3 mm1/8"0.1181"
4 mm5/32"0.1575"
5 mm13/64"0.1969"
6 mm15/64"0.2362"
7 mm9/32"0.2756"
8 mm5/16"0.315"
9 mm23/64"0.3543"
10 mm25/64"0.3937"
11 mm7/16"0.4331"
12 mm15/32"0.4724"
13 mm33/64"0.5118"
14 mm35/64"0.5512"
15 mm19/32"0.5906"
16 mm5/8"0.6299"
17 mm43/64"0.6693"
18 mm45/64"0.7087"
19 mm3/4"0.748"
20 mm25/32"0.7874"
21 mm53/64"0.8268"
22 mm55/64"0.8661"
23 mm29/32"0.9055"
24 mm15/16"0.9449"
25 mm63/64"0.9843"
26 mm33/32"1.0236"
27 mm17/16"1.063"
28 mm71/64"1.1024"
29 mm73/64"1.1417"
30 mm19/16"1.1811"

FAQ

How many fractional inches in 8 millimeters?

8 mm = 5/16" (0.315")

What is the formula to convert 8 mm to fractional inches?

The formula is: inches = mm ÷ 25.4. For 8 mm: 8 ÷ 25.4 = 0.315", nearest SAE fraction: 5/16".

What are SAE fractions and why convert mm to fractional inches?

SAE fractions are standard inch sizes with denominators of 2, 4, 8, 16, 32, 64. They are used in American tools, automobiles, and fasteners.