21 cm to dm = 2.1 dm
There are 0.1 centimeter in an decimeter. Therefore, to convert from centimeter to decimeter, multiply the number of centimeter by 0.1.
Decimeter to centimeter formula
Converter from Centimeter to Decimeter
Centimeter and Decimeter are both units of measurement for length. An Centimeter is equal to 0.1 Decimeter, so to convert Centimeter to Decimeter, multiply the number of Centimeter by 0.1 .
For example, to know how many Decimeter is 5 Centimeter, multiply 5 by 0.1 to get 0.5.
More information about the number 21
21 is not a prime number.
Square root of 21 is 4.5825756949558
21 is an odd number.
Divisors of 21 are: 1 3 7 21
About Centimeter Unit Length
The centimeter is a unit of length in the metric system, equal to one one-hundredth (1/100) of a meter.
About Decimeter Unit Length
Decimeter is a unit of length in the metric system, equal to one tenth of a meter.
Popular cm to dm conversions
Download Excel Conversion chart from cm to dm
| CM | DM |
| 1 | 0.1 |
| 2 | 0.2 |
| 3 | 0.3 |
| 4 | 0.4 |
| 5 | 0.5 |
| 6 | 0.6 |
| 7 | 0.7 |
| 8 | 0.8 |
| 9 | 0.9 |
| 10 | 1 |
| 11 | 1.1 |
| 12 | 1.2 |
| 13 | 1.3 |
| 14 | 1.4 |
| 15 | 1.5 |
| 16 | 1.6 |
| 17 | 1.7 |
| 18 | 1.8 |
| 19 | 1.9 |
| 20 | 2 |
| 21 | 2.1 |
| 22 | 2.2 |
| 23 | 2.3 |
| 24 | 2.4 |
| 25 | 2.5 |
| 26 | 2.6 |
| 27 | 2.7 |
| 28 | 2.8 |
| 29 | 2.9 |
| 30 | 3 |
| 31 | 3.1 |
| 32 | 3.2 |
| 33 | 3.3 |
| 34 | 3.4 |
| 35 | 3.5 |
| 36 | 3.6 |
| 37 | 3.7 |
| 38 | 3.8 |
| 39 | 3.9 |
| 40 | 4 |
| 41 | 4.1 |
| 42 | 4.2 |
| 43 | 4.3 |
| 44 | 4.4 |
| 45 | 4.5 |
| 46 | 4.6 |
| 47 | 4.7 |
| 48 | 4.8 |
| 49 | 4.9 |
| 50 | 5 |
| 51 | 5.1 |
| 52 | 5.2 |
| 53 | 5.3 |
| 54 | 5.4 |
| 55 | 5.5 |
| 56 | 5.6 |
| 57 | 5.7 |
| 58 | 5.8 |
| 59 | 5.9 |
| 60 | 6 |
| 61 | 6.1 |
| 62 | 6.2 |
| 63 | 6.3 |
| 64 | 6.4 |
| 65 | 6.5 |
| 66 | 6.6 |
| 67 | 6.7 |
| 68 | 6.8 |
| 69 | 6.9 |
| 70 | 7 |
| 71 | 7.1 |
| 72 | 7.2 |
| 73 | 7.3 |
| 74 | 7.4 |
| 75 | 7.5 |
| 76 | 7.6 |
| 77 | 7.7 |
| 78 | 7.8 |
| 79 | 7.9 |
| 80 | 8 |
| 81 | 8.1 |
| 82 | 8.2 |
| 83 | 8.3 |
| 84 | 8.4 |
| 85 | 8.5 |
| 86 | 8.6 |
| 87 | 8.7 |
| 88 | 8.8 |
| 89 | 8.9 |
| 90 | 9 |
| 91 | 9.1 |
| 92 | 9.2 |
| 93 | 9.3 |
| 94 | 9.4 |
| 95 | 9.5 |
| 96 | 9.6 |
| 97 | 9.7 |
| 98 | 9.8 |
| 99 | 9.9 |
| 100 | 10 |
| 125 | 12.5 |
| 150 | 15 |
| 175 | 17.5 |
| 200 | 20 |
| 225 | 22.5 |
| 250 | 25 |
| 275 | 27.5 |
| 300 | 30 |
| 325 | 32.5 |
| 350 | 35 |
| 375 | 37.5 |
| 400 | 40 |
| 450 | 45 |
| 500 | 50 |
| 550 | 55 |
| 600 | 60 |
| 650 | 65 |
| 700 | 70 |
| 750 | 75 |
| 800 | 80 |
| 850 | 85 |
| 900 | 90 |
| 950 | 95 |
| 1000 | 100 |
| 1500 | 150 |
| 2000 | 200 |
| 2500 | 250 |
| 3000 | 300 |
| 3500 | 350 |
| 4000 | 400 |
| 4500 | 450 |
| 5000 | 500 |
| 5500 | 550 |
| 6000 | 600 |
| 6500 | 650 |
| 7000 | 700 |
| 7500 | 750 |
| 8000 | 800 |
| 8500 | 850 |
| 9000 | 900 |
| 9500 | 950 |
| 10000 | 1000 |
| 10500 | 1050 |
| 11000 | 1100 |
| 11500 | 1150 |
| 12000 | 1200 |
| 12500 | 1250 |
| 13000 | 1300 |
| 13500 | 1350 |
| 14000 | 1400 |
| 14500 | 1450 |
| 15000 | 1500 |
Rules to convert Length Units
There is no one-size-fits-all answer to this question, as the best way to convert length units will vary depending on the specific circumstances.
However, some tips on how to convert length units may include using a calculator or online converter tool, studying a conversion chart, or finding a conversion factor.
Frequently Asked Questions
How many dm is 21 cm
How to convert dm to cm ?
Convert Decimeter to Other Length Units
- 21 decimeter to inchs
- 21 decimeter to feet
- 21 decimeter to yards
- 21 decimeter to centimeter
- 21 decimeter to millimeter
- 21 decimeter to meter
- 21 decimeter to kilometer
- 21 decimeter to mile
- 21 decimeter to hand
- 21 decimeter to micrometer
- 21 decimeter to nanometer
- 21 decimeter to picometer
- 21 decimeter to lightYear
- 21 decimeter to astronomicalunit
- 21 decimeter to parsec
Convert Centimeter to Other Length Units
- 21 centimeter to inchs
- 21 centimeter to feet
- 21 centimeter to yards
- 21 centimeter to millimeter
- 21 centimeter to meter
- 21 centimeter to kilometer
- 21 centimeter to decimeter
- 21 centimeter to mile
- 21 centimeter to hand
- 21 centimeter to micrometer
- 21 centimeter to nanometer
- 21 centimeter to picometer
- 21 centimeter to lightYear
- 21 centimeter to astronomicalunit
- 21 centimeter to parsec
