The diagonal screen is 15.6"(inches) of my laptop computer, resolution is 1366x768 pixels. I google the PPI reference and found 100 PPI to my screen, after i measure the size of virtual ruler by a actual ruler, i found the markings are not very accurate at 30cm, so i set the default pixels per inch(PPI) is 100.7 for myself.
If you would like measure the length of something, we have an online actual size ruler, welcom to try it.
Inches | CM | MM |
1/2" | 1.27 | 12.7 |
1/4" | 0.64 | 6.4 |
3/4" | 1.91 | 19 |
1/8" | 0.32 | 3.2 |
3/8" | 0.95 | 9.5 |
5/8" | 1.59 | 15.9 |
7/8" | 2.22 | 22.2 |
1/16" | 0.16 | 1.6 |
3/16" | 0.48 | 4.8 |
5/16" | 0.79 | 7.9 |
7/16" | 1.11 | 11.1 |
Inches | CM | MM |
9/16" | 1.43 | 14.3 |
11/16" | 1.75 | 17.5 |
13/16" | 2.06 | 20.6 |
15/16" | 2.38 | 23.8 |
1/32" | 0.08 | 0.8 |
3/32" | 0.24 | 2.4 |
5/32" | 0.4 | 4 |
7/32" | 0.56 | 5.6 |
9/32" | 0.71 | 7.1 |
11/32" | 0.87 | 8.7 |
13/32" | 1.03 | 10.3 |
Inches | CM | MM |
15/32" | 1.19 | 11.9 |
17/32" | 1.35 | 13.5 |
19/32" | 1.51 | 15.1 |
21/32" | 1.67 | 16.7 |
23/32" | 1.83 | 18.3 |
25/32" | 1.98 | 19.8 |
27/32" | 2.14 | 21.4 |
29/32" | 2.3 | 23 |
31/32" | 2.46 | 24.6 |
There are two types of scales commonly used on rulers; Fractional and Decimal. Fractional Rulers have graduations or marks based on fractions, for example 1/2", 1/4" 1/8", 1/16", etc.. Decimal Rulers have graduations or marks which are based on the decimal system such as 0.5, 0.25, 0.1, 0.05, etc.. Most Fractional Rulers are based on the English measuring system where scales are graduated in units of one inch and fractions of an inch.
If you would like convert fraction to decimal, or convert decimal to fracion, try this fraction/decimal converter
If you want to know what is your screen size in pixels, inches or cm, you can try this tool, what is my screen size.
MM | CM | Approximate Fractional Inches | Decimal Inches |
1 mm | 0.1 cm | 1/25 Inch | 0.03937 Inches |
2 mm | 0.2 cm | 1/16 Inch | 0.07874 Inches |
3 mm | 0.3 cm | 3/32 Inch | 0.11811 Inches |
4 mm | 0.4 cm | 1/8 Inch | 0.15748 Inches |
5 mm | 0.5 cm | 3/16 Inch | 0.19685 Inches |
6 mm | 0.6 cm | Just short of 1/4 Inch | 0.23622 Inches |
7 mm | 0.7 cm | Little over 1/4 Inch | 0.27559 Inches |
8 mm | 0.8 cm | 5/16 Inch | 0.31496 Inches |
9 mm | 0.9 cm | Just short of 3/8 Inch | 0.35433 Inches |
10 mm | 1.0 cm | Little over 3/8 Inch | 0.39370 Inches |
11 mm | 1.1 cm | 7/16 Inch | 0.43307 Inches |
12 mm | 1.2 cm | Just short of 1/2 Inch | 0.47244 Inches |
13 mm | 1.3 cm | Little over 1/2 Inch | 0.51181 Inches |
14 mm | 1.4 cm | 9/16 Inch | 0.55118 Inches |
15 mm | 1.5 cm | Just short of 5/8 Inch | 0.59055 Inches |
16 mm | 1.6 cm | 5/8 Inch | 0.62992 Inches |
17 mm | 1.7 cm | Just short of 11/16 Inch | 0.66929 Inches |
18 mm | 1.8 cm | Just short of 3/4 Inch | 0.70866 Inches |
19 mm | 1.9 cm | Little under 3/4 Inch | 0.74803 Inches |
20 mm | 2.0 cm | Just short of 13/16 Inch | 0.78740 Inches |
21 mm | 2.1 cm | Little over 13/16 Inch | 0.82677 Inches |
22 mm | 2.2 cm | Just short of 7/8 Inch | 0.86614 Inches |
23 mm | 2.3 cm | Little over 7/8 Inch | 0.90551 Inches |
24 mm | 2.4 cm | 15/16 Inch | 0.94488 Inches |
25 mm | 2.5 cm | 1 Inch | 0.98425 Inches |
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