How To Convert From Cm To Inches (And Back)
Learn how to convert from cm to inches and backward from inches to cm. This conversion is quite simple and easy to comprehend. I will show you basic formulas for better understanding of relation between measurement units. In addition you can find here practical examples for using formulas and many links to online converters.
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1 Inch = 2.54 Centimeters
Formula
Inches x 2.54 = Centimeters
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1 Centimeter = 0.3937* Inches
Formula
Centimeters x 0.3937* = Inches
* exact number is 0.393700787
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Inch
Name: inch (inches)
Acronym: in (or double prime - " )
Description: an inch is universal unit of length in Imperial Unit System, it is used in UK, US, Canada and informal in Australia. Other measurement units are 1 foot = 12 inches and 1 yard = 36 inches.
Detail about measurement units
Centimeter
Name: centimeter (centimeters)
Acronym: cm
Description: a centimeter is unit of length in International System of Units (SI) - metric system. It is widely used in Europe and in many nations as official measurement system. More commonly used units are 1 millimeter = 0.1 centimeters, 1 meter = 100 centimeters.
In this list you can see most used values for cm and inches. Inches are multiplied by 2.54 and centimeters by 0.3937 (above is exact number, if you need mathematicalprecise results). Final numbers are rounded up (two decimal figures).
Convert cm to inches
20 cm = 7.87 in
30 cm = 11.81 in
40 cm = 15.75 in (or 1 foot and 3.75 in)
50 cm = 19.69 in (or 1 foot and 7.69 in)
60 cm = 23.62 in (or 1 foot and 11.62 in)
70 cm = 27.56 in (or 2 feet and 3.56 in)
80 cm = 31.50 in (or 2 feet and 7.50 in)
90 cm = 35.43 in (or 2 feet and 11.43 in)
100 cm = 39.37 in (or 3 feet and 3.37 in)
1 cm = 0.39 in
1,5 cm = 0.59 in
2 cm = 0.79 in
2,5 cm = 0.98 in
3 cm = 1.18 in
3,5 cm = 1.38 in
4 cm = 1.57 in
4,5 cm = 1.77 in
5 cm = 1.97 in
5,5 cm = 2.17 in
6 cm = 2.36 in
6,5 cm = 2.56 in
7 cm = 2.76 in
7,5 cm = 2.95 in
8 cm = 3.15 in
8,5 cm = 3.35 in
9 cm = 3.54 in
9,5 cm = 3.74 in
10 cm = 3.94 in
Convert inches to cm
20 in = 50.80 cm (or 0.51 meters)
30 in = 76.20 cm (or 0.76 meters)
40 in = 101.60 (or 1.02 meters)
50 in = 127.00 (or 1.27 meters)
60 in = 152.40 (or 1.52 meters)
70 in = 177.80 (or 1.78 meters)
80 in = 203.20 (or 2.03 meters)
90 in = 228.60 (or 2.29 meters)
100 in = 254.00 (or 2.54 meters)
1 in = 2.54 cm
1 ¼ in = 3.18 cm
1 ½ in = 3.81 cm
1 ¾ in = 4.45 cm
2 in = 5.08 cm
2 ¼ in = 5.72 cm
2 ½ in = 6.35 cm
2 ¾ in = 6.99 cm
3 in = 7.62 cm
3 ¼ in = 8.26 cm
3 ½ in = 8.89 cm
3 ¾ in = 9.53 cm
4 in = 10.16 cm
4 ¼ in = 10.80 cm
4 ½ in = 11.43 cm
4 ¾ in = 12.07 cm
5 in = 12.70 cm
5 ¼ in = 13.34 cm
5 ½ in = 13.97 cm
5 ¾ in = 14.61 cm
6 in = 15.24 cm
6 ¼ in = 15.88 cm
6 ½ in = 16.51 cm
6 ¾ in = 17.15 cm
7 in = 17.78 cm
7 ¼ in = 8.42 cm
7 ½ in = 19.05 cm
7 ¾ in = 19.69 cm
8 in = 20.32 cm
8 ¼ in = 20.96 cm
8 ½ in = 21.59 cm
8 ¾ in = 22.23 cm
9 in = 22.86 cm
9 ¼ in = 23.50 cm
9 ½ in = 24.13 cm
9 ¾ in = 24.77 cm
10 in = 25.40 cm
Practical examples
In following practical examples notice that for conversion from centimeters to inches I have used calculative shorter formula. Centimeters are multiplied by 0.3937 instead of 0.393700787. therefore your final results may vary. Shorter form can be less time-consuming to the prejudice of exactness.
If a man is 180 centimeters tall what is his height in inches?
180 cm x 0.3937 = 70.866 in
My daughter is 55 centimeters long and I would like to convert it to inches.
56 cm x 0.3937 = 22.0472 (or approximately 22 in)
How many centimeters are in 42 inches digital tv?
42 in x 2.54 = 106.68 cm
How wide is 10 inches iPad's screen in centimeters?
10 in x 2.54 = 25.4 cm
How to convert from cm to inches with online convertors
Today you can find out a lot of online converters. I have prepared list of handy and clever conversion calculators. Some converters calculate with besides inches with feet too. Here are top 10 online converters.
Onlineconversion.com site
- Online Conversion - Common Length Conversions
Common Length and Distance Conversions.
Metric-Conversions.org site
- Cm to Inches (Centimeters to Inches) converter
Cm to Inches (Centimeters to Inches) conversion calculator for length conversions with additional tables and formulas.
Yahoo Conversion Calculator
- Conversion Calculator: Weight, Length etc. - Yahoo! Education
Conversion Calculator - Convert weights and measures, area, length, volume, weight, and mass between the English system and the metric system on Yahoo! Education.
Manuelsweb Converter
- Inches to cm, cm to inches calculator
Calculate inches to cm and cm to inches.
ConvertUnits.com - Measurement Unit Converter
- Convert cm to inches - Conversion of Measurement Units
Quickly convert centimetres into inches (cm to inches) using the online calculator for metric conversions and more.
Cookaz Length Conversions
- Convert length units (meters, feet, inches, cm, mm, etc)
Convert all types of length units from one type to the other. Convert feet to meters, meters to feet, feet to centimeters, meters to inches and much more.
Converter on CSGnetwork.com
- Centimeters To Feet And Inches Calculator
Convert from centimeters to feet AND inches. Includes additional conversions of only inches, centimeters, etc.
CentimeterToInches.net
- Centimeters to Inches
Convert Centimeters to Inches.
AskNumber site
- Inches to Centimeters (cm)
How many centimeters in an inch?
Google Built-in Calculator
Example of usage: write down “50 in to cm” and you will get “50 inches = 127 centimeters”. You will get very fast results. It is best way how to convert inches to cm online. You can use it as combination with google toolbar and then you just write your conversion formula to the toolbar and it is. For more conversion tips see Google GuideCalculator.
Videos How To Convert From Cm To Inches
If you prefer videos check these video tutorial and you can test your new mathematical skill with quizzes.
Converting Inches to Centimeters
Conversion Quiz - How to Convert Centimeters to Inches
Conversion Quiz - How to Convert Inches to Centimeters
If you like my article How To Convert From Cm To Inches (And Back) please share, rate or comment it. If you have some ideas to improve this article, please feel free to contact me. I hope that I helped you with this conversion and you can easy to practical use in your daily life.
Comments
testingfourarc on June 06, 2019:
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Drake Frost on January 09, 2019:
According to the formula for a very long time to do such a translation. Better use online convector https://cm-to-inches.org/
naaz simra from United Kingdom on December 13, 2018:
Thanks for sharing this useful information
You can also try https://unitconverter.net/ to convert all metric measurements
maths on May 02, 2014:
0.393700787in = 1cm is not true, that is not the exact value. 2.54cm = 1in is exact because the inch has been defined that way to derive from the metric system. if you check, 0.393700787 * 254/100 actually gives 0.99999999898 where it would give precisely 1 if the approximation 0.393700787...in = 1cm was exactly true.
Missy Mac from Illinois on January 15, 2013:
Using proportions is a great way to convert inches to cm. I am using this information. Additionally, thank you for the conversion chart at the top and clear explanation.
... on December 11, 2012:
GREAT BUT HARD
Fagg Fai on December 11, 2012:
I Really Like it but you got too Hard so I didn't did the quiz but VERY GOOD TRY
