Micron to Grit Calculator

What is Micron

A micron, also known as a micrometer, is a unit of measurement that is equal to one millionth of a meter (1/1,000,000 meters). It is commonly used to measure the size of particles, such as those found in abrasive materials.
In abrasive materials, micron size can refer to the average size of the abrasive particles in a material. The smaller the micron size, the finer the abrasive particles are and the smoother the finish produced by the abrasive. Conversely, larger micron sizes indicate coarser abrasive particles and a rougher finish.
Micron size is important in abrasive materials because it directly affects the performance of the abrasive. Finer abrasives are able to remove smaller amounts of material per pass, but can produce a smoother finish. Coarser abrasives remove more material per pass, but can leave a rougher finish.
Micron size can be measured by various methods like microscopy, sieve analysis, laser diffraction and more. The most common method is the microscopy method where abrasive particles are viewed under a microscope and their size is determined by measuring their longest dimension.

How to Calculate Micron to Grit?

There is no straightforward calculation to convert microns to grit, as the relationship between micron size and grit can vary depending on the specific application and type of abrasive material.
A general rule of thumb for converting microns to grit is to multiply the micron value by 120. For example, a micron size of 0.35 would be approximately 42 grit (0.35*120). However, this method is not always accurate and should be used with caution.
Another method is to consult a conversion chart or reference table that provides specific grit values for different micron sizes. These charts can be found online or in technical publications. It’s important to note that some abrasive materials may have different size distributions than others, so it is important to consult the manufacturer’s specifications for the specific product you are using.
Also, it’s important to mention that the conversion between microns and grits isn’t linear, it’s more complex and for this reason, it’s better to use a conversion chart or table that’s specific to the abrasive material you are working with.