Method 1.
- The longer the line on the surface of the ruler, the bigger the measurement is. Ranging from 1 inch to 1/16 of an inch, the lines decrease in size as ...
- Make sure you read the ruler from left to right. If you are measuring something, align it with the left side of the zero mark on the ruler. The left ...
How to count millimeters on a ruler?
How to use Online Ruler?
- For measuring, firstly, place the object near to the screen. Keep it such that you can see the scale. ...
- As mentioned before, the ruler has a mm, cm, and inch scale. ...
- Even more, you can change the Pixels per inch (PPI) to make the ruler more accurate and save it for future use. ...
- Lastly, you can use the "Restore PPI" button to refresh all the settings.
What are the measurements of a ruler?
The ruler is not numbered but features dark dots that are spaced an inch apart. “As it doesn’t have numbers, it’s actually rather discreet and allows me to innocently reach up to stroke a man’s stomach whilst taking a glance at my arm alongside it to count the inches,” she told Jam Press.
How to read mm on a ruler?
- We will measure this key’s length in millimetres.
- Each centimetre is worth 10 mm.
- We can count up in centimetres with each centimetre worth 10 mm.
- To measure the key, we line its left hand side up with the zero line on the ruler.
- The key is larger than 40 mm but less than 50 mm, since the end is between 4 and 5 cm.
What is a metric ruler used to measure?
A metric ruler, also called a rule or, especially in the printing industry, a line gauge, is a measuring instrument used in technical drawing, geometry, engineering, printing and construction to rule straight lines and calculate distances. As such, metric rulers often have distance markings along their edges.
What do the marks on a metric ruler mean?
Metric rulers have centimeter and millimeter markings. The larger markings these represent a centimeter. The smaller ticks on a metric ruler represent a millimeter. There are 10 millimeters in a centimeter, so there are 9 millimeter ticks between each centimeter tick.
What are the tiny lines on a metric ruler?
Each line represents 1 millimeter, which is equal to 1/10 or 0.1 cm (so 10 mm make up 1 cm). There will always be 10 lines from one centimeter to the next centimeter. In total, there are three different lengths of lines on a metric ruler.
How do you read mm and inches on a ruler?
0:151:32One side measures 30 centimeters. And the other side of the ruler measures 12 inches. Step 2MoreOne side measures 30 centimeters. And the other side of the ruler measures 12 inches. Step 2 multiply centimeters by 10 to calculate millimeters for example one point two centimeters equals.
Which lines are mm on a ruler?
Look at the unmarked lines on a metric ruler. The numbered lines correspond to centimeters, while the unmarked lines indicate millimeters. If you look closely, you'll notice that there are 10 millimeters in a centimeter.
What is 10 mm on a ruler?
Once we have counted 10 of the smallest lines, we have counted 10 mm. We can see that we are on the 1 cm line, marked with a '1'. 10 mm is the same length as 1 cm. Every centimetre on a ruler is worth 10 mm.
How many mm means 1 inch?
25.4 millimetersIn summary, 1 inch is equal to 25.4 millimeters.
How do you measure mm?
3:284:56Drop your pencil and align. One end up to the zero on your ruler. One end onto the zero of yourMoreDrop your pencil and align. One end up to the zero on your ruler. One end onto the zero of your ruler.
What is 7.8 inches on a ruler?
Inch Fraction, Decimal and Millimeter EquivalentsFractionDecimalMillimeters13⁄16”0.812520.63757⁄8”0.87522.22515⁄16”0.937523.81251″125.412 more rows•Feb 23, 2022
How to read a ruler?
Make sure you read the ruler from left to right. If you are measuring something, align it with the left side of the zero mark on the ruler. The left side of the line where the object ends will be its measurement in inches.
What side of a ruler reads cm?
The centimeters side is usually the part of the ruler where the markers are shorter and closer together. It reads cm, and has more numbers.
What do the numbers next to the longest lines on a ruler mean?
The large numbers next to the longest lines on the ruler denote the centimeter marks . A metric ruler has 30 of these marks. For example, place the bottom of a crayon on the far left side of the ruler to measure it. Note where the tip falls.
What is the line on a ruler?
The very first line on the left hand side of the ruler is the 1/16 of an inch mark. Between 0 and 1 inch, there are marks that denote 1/16, 2/16 (or 1/8), 3/16, 4/16 (or 1/4), 5/16, 6/16 (or 3/8), 7/16, 8/16 (or 1/2), 9/16, 10/16 (or 5/8), 11/16, 12/16 (3/4), 13/16, 14/16 (or 7/8), 15/16, 16/16 (or 1) of an inch.
What are the 1/8 of an inch marks?
Learn the 1/8 of an inch marks. The 1/8 of an inch marks are the smaller marks found directly in between the 1/4 of an inch marks on the ruler. Between 0 and 1 inch, there are marks that denote 1/8, 1/4 (or 2/8), 3/8, 1/2 (or 4/8), 5/8, 6/8 (or 3/4), 7/8, and 1 (or 8/8) of an inch.
How to measure 1/4 of an inch?
Learn the 1/4 of an inch marks. Halfway in between each 1/2 inch line, there will be a smaller line that denotes a 1/4 of an inch. In the first inch, these marks will mark 1/4, 1/2, 3/4, and 1 inch. Although the 1/2 inch and 1 inch marks have their own lines, they are still part of the 1/4 of an inch measurements because 2/4 of an inch equals half an inch and 4/4 of an inch equals 1 inch. There are a total of 48 of these marks on a 12 inch ruler.
How many 1/2 inch marks are there on a 12 inch ruler?
This means that marks directly between the 0 and 1 inch, 1 and 2 inches, 2 and 3 inches, and so on across the ruler, are the 1/2 inch marks. In total, there are 24 of these marks on a 12 inch ruler.
What is a metric ruler?
A metric ruler is the standard instrument for measurement in the scientific laboratory. On a metric ruler, each individual line represents a millimeter (mm). The numbers on the ruler represent centimeters (cm). There are 10 millimeters for each centimeter.
How to read a ruler to measure centimeters?
To read a metric ruler to measure centimeters, look at the long lines on the ruler that are numbered 1-30, which are the centimeter marks. The distance between them is equal to 1 centimeter. There are smaller lines between the larger centimeter lines, which represent millimeters.
What is the unit of length in metric?
The millimetre (international spelling as used by the International Bureau of Weights and Measures; SI unit symbol mm) or millimeter (American spelling) is a unit of length in the metric system, equal to one thousandth of a metre, which is the SI base unit of length. There are ten millimetres in a centimetre.
What are the two types of scales used in rulers?
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 0.1, 0.01, etc.
What is the abbreviation for centimeters?
Centimeters - abbreviated as cm. Millimeters - abbreviated as mm. There are 100 cm in a m and 10 mm in a cm, thus there are also 1000mm in 1 m. In the drawing below we show various options for cm and mm and how to correctly read the ruler; remember 10mm = 1cm and 100cm = 1m.
Why is it important to know how to read a ruler?
For example, if you wanted to make something out of construction paper, you'd likely need to use a ruler to measure out how much of the material you would need.
Where is the 1/2 inch line on a ruler?
The 1/2-inch line is located midway between every inch on a ruler. The midpoint between 7 and 8 inches, for instance, would be 7 1/2 (or 7.5) inches.
What is the third largest line on a ruler?
The third-biggest lines on a ruler are the 1/4 inch lines, which appear midway between the 1/2 inch and whole inch lines: If you counted in 1/4 inches on a ruler, you'd see that the fourth line after 0 inches equals 1/4 inch, the eighth line equals 2/4 (1/2) inch, and the 12th line equals 3/4 inch.
What are the two types of rulers?
There are two types of rulers you can use: the inch, or imperial, ruler and the centimeter, or metric, ruler. Inches correspond to the imperial system, which is the main measuring system used in the US and a smattering of other countries. Meanwhile, centimeters are part of the metric system, which is used around the world in both everyday life ...
How long is a standard ruler?
The standard metric ruler is 30 cm long. Each centimeter is labeled with a number to show the measurement it's referring to. You might see inches on the other side of your metric ruler. In this case, refer to the instructions above to learn how to read a ruler in inches.
What is the middle length of a ruler?
The middle-length line on a metric ruler is the 1/2 (0.5) centimeter line, which comes midway between every centimeter (in other words, it's the fifth line after every whole centimeter): So if you counted five lines from 9 cm, for instance, you’d get 9.5 cm (or 95 mm).
What is the largest unit on a ruler?
The inch is the biggest unit on a ruler and is represented by the longest line. Each 1-inch line is labeled with a number indicating what inch it is on the ruler (as the image above shows).
What is the difference between a metric ruler and a ten millimeter ruler?
The metric ruler is divided into millimeters (or millimetres). Ten millimeters is a centimeter (or centimetre).
What programs can you use to read rulers?
Computer programs like Microsoft Word and Adobe PhotoShop have electronic rulers that you can turn on to help you with the exact placement of items. Reading a ruler is a valuable skill that you will use almost every day, both on and off the job. Use this game to improve how you read a ruler.
Why do scale rulers come in different sizes?
They come with different scales because you often need to represent things at different scales. For example, a cabinet doesn’t need to be shrunken as much as a whole house would need to be to fit on a page. The common scales you’ll see on scale rulers are 1:1, 1:5, ...
Why are scale rulers so easy to use?
The reason why these are at the scales they are, is because they are easily divisible. They are easy and fun to work with. The best way to learn how to use a scale ruler is by using one. So, let’s have a look at how we do that.
