On a standard ruler, 0.28 inches is slightly less than 1/3 of an inch. It would be located just past the 1/4-inch mark, which is 0.25 inches, and before the 3/8-inch mark, which is 0.375 inches. To visualize it, you can estimate that it's about a little less than three-tenths of an inch from the zero mark.
A ruler
It look like 1.93
where is .39 on a ruler
2.5 cm looks like about 1 inch on a ruler
A ruler
i inch
1.77 inches
one and 1/4
6.14" is the length of a U.S. Dollar bill. Measure it with your ruler.
It should look by the calaculations of math (3y=|^) it would look like a house
You'll find out by looking at the distance between 0 and 4 on a ruler. Simple and easy!
1/32, smallest increment on ruler