
Instead, some minor rounding will occur since it will be necessary to find the nearest fraction with the denominator that is a power of 2, also known as a dyadic fraction or dyadic rational number.

These specific fractions of an inch are referred to as inch fractions.Īs a result, if we want to convert a decimal to one of these inch fractions, then know that converting a decimal to an inch fraction is not quite the same as converting a decimal to a regular fraction. That means the fraction denominators are most commonly 2, 4, 8, 16, 32, and 64. While fractions of an inch can be represented as any standard fraction, the most common fractions of an inch use denominators that are powers of 2, from half inches to up to the 64ths of an inch. When inches are expressed as a fraction, there are some special rules to follow, which are important to know to convert a decimal to inches correctly. Measurements in inches can be expressed as a decimal or a fraction.
#Convert inches to decimal how to

Fractional Rulers have graduations or marks based on fractions, for example 1/2", 1/4" 1/8", 1/16", etc. There are two types of scales commonly used on rulers Fractional and Decimal.

So i set the default pixels per inch(PPI) is 100.7 for myself. I found the markings are not very accurate at 30cm, I google the PPI reference and found 100 PPI to my screen,Īfter i measure the size of virtual ruler by a actual ruler,

The diagonal screen is 15.6"(inches) of my laptop computer, resolution is 1366x768 pixels. Use 1/8" graduations, 10cm = 4" Use 1/16" graduations, 10cm = 3 15/16" Īdjusting this online ruler to actual size.Fill MM, CM, decimal inch or fraction to convert
