Result: 4 millimeters is about 5/32 of an inch.
The answer is 5/32 inch. The result is sometimes only an approximation of the real value because of rounding. But it's accurate enough for typical everyday measurements.
To convert 4 millimeters to an inch fraction, you need to first convert 4 millimeters to inches. Since 1 inch is equal to 25.4 millimeters, divide 4 by 25.4 to get decimal inches:
4 mm ÷ 25.4 = 0.1574 in
Then, let's convert the decimal value of 0.1574 inches to a fraction.
To convert 0.1574 inches to a fraction, use a ruler or a decimal to fraction conversion table to find the nearest fraction with a reasonable denominator (fractional inches usually have denominators that are powers of 2, such as 2, 4, 8, 16, 32, 64).
In this example, use a ruler to find the closest fraction.
Using a ruler, you can see that 0.1574 inches is very close to 5/32 inch.
Therefore, 4 millimeters is approximately equal to 5/32 inch.