| centimeter | 1 cm | 2 cm | 3 cm | 4 cm | 5 cm | 6 cm | 7 cm | 8 cm | 9 cm | 10 cm | 11 cm | 12 cm | 13 cm | 14 cm | 15 cm | 16 cm | 17 cm | 18 cm | 19 cm | 20 cm | 21 cm | 22 cm | 23 cm | 24 cm | 25 cm | 26 cm | 27 cm | 28 cm | 29 cm | 30 cm | 31 cm | 32 cm | 33 cm | 34 cm | 35 cm | 36 cm | 37 cm | 38 cm | 39 cm | 40 cm | 41 cm | 42 cm | 43 cm | 44 cm | 45 cm | 46 cm | 47 cm | 48 cm | 49 cm | 50 cm | 51 cm | 52 cm | 53 cm | 54 cm | 55 cm | 56 cm | 57 cm | 58 cm | 59 cm | 60 cm | 61 cm | 62 cm | 63 cm | 64 cm | 65 cm | 66 cm | 67 cm | 68 cm | 69 cm | 70 cm | 71 cm | 72 cm | 73 cm | 74 cm | 75 cm | 76 cm | 77 cm | 78 cm | 79 cm | 80 cm | 81 cm | 82 cm | 83 cm | 84 cm | 85 cm | 86 cm | 87 cm | 88 cm | 89 cm | 90 cm | 91 cm | 92 cm | 93 cm | 94 cm | 95 cm | 96 cm | 97 cm | 98 cm | 99 cm | 100 cm |
| fermtometer | 10 000 000 000 000 fm | 20 000 000 000 000 fm | 30 000 000 000 000 fm | 40 000 000 000 000 fm | 50 000 000 000 000 fm | 60 000 000 000 000 fm | 70 000 000 000 000 fm | 80 000 000 000 000 fm | 90 000 000 000 000 fm | 1.0 × 1014 fm | 1.1 × 1014 fm | 1.2 × 1014 fm | 1.3 × 1014 fm | 1.4 × 1014 fm | 1.5 × 1014 fm | 1.6 × 1014 fm | 1.7 × 1014 fm | 1.8 × 1014 fm | 1.9 × 1014 fm | 2.0 × 1014 fm | 2.1 × 1014 fm | 2.2 × 1014 fm | 2.3 × 1014 fm | 2.4 × 1014 fm | 2.5 × 1014 fm | 2.6 × 1014 fm | 2.7 × 1014 fm | 2.8 × 1014 fm | 2.9 × 1014 fm | 3.0 × 1014 fm | 3.1 × 1014 fm | 3.2 × 1014 fm | 3.3 × 1014 fm | 3.4 × 1014 fm | 3.5 × 1014 fm | 3.6 × 1014 fm | 3.7 × 1014 fm | 3.8 × 1014 fm | 3.9 × 1014 fm | 4.0 × 1014 fm | 4.1 × 1014 fm | 4.2 × 1014 fm | 4.3 × 1014 fm | 4.4 × 1014 fm | 4.5 × 1014 fm | 4.6 × 1014 fm | 4.7 × 1014 fm | 4.8 × 1014 fm | 4.9 × 1014 fm | 5.0 × 1014 fm | 5.1 × 1014 fm | 5.2 × 1014 fm | 5.3 × 1014 fm | 5.4 × 1014 fm | 5.5 × 1014 fm | 5.6 × 1014 fm | 5.7 × 1014 fm | 5.8 × 1014 fm | 5.9 × 1014 fm | 6.0 × 1014 fm | 6.1 × 1014 fm | 6.2 × 1014 fm | 6.3 × 1014 fm | 6.4 × 1014 fm | 6.5 × 1014 fm | 6.6 × 1014 fm | 6.7 × 1014 fm | 6.8 × 1014 fm | 6.9 × 1014 fm | 7.0 × 1014 fm | 7.1 × 1014 fm | 7.2 × 1014 fm | 7.3 × 1014 fm | 7.4 × 1014 fm | 7.5 × 1014 fm | 7.6 × 1014 fm | 7.7 × 1014 fm | 7.8 × 1014 fm | 7.9 × 1014 fm | 8.0 × 1014 fm | 8.1 × 1014 fm | 8.2 × 1014 fm | 8.3 × 1014 fm | 8.4 × 1014 fm | 8.5 × 1014 fm | 8.6 × 1014 fm | 8.7 × 1014 fm | 8.8 × 1014 fm | 8.9 × 1014 fm | 9.0 × 1014 fm | 9.1 × 1014 fm | 9.2 × 1014 fm | 9.3 × 1014 fm | 9.4 × 1014 fm | 9.5 × 1014 fm | 9.6 × 1014 fm | 9.7 × 1014 fm | 9.8 × 1014 fm | 9.9 × 1014 fm | 1.0 × 1015 fm |
A centimetre (international spelling as used by the International Bureau of Weights and Measures; symbol cm) or centimeter (American spelling) is a unit of length in the metric system, equal to one hundredth of a metre, centi being the SI prefix for a factor of 1/100 . The centimetre was the base unit of length in the now deprecated centimetre–gram–second (CGS) system of units.
| 1 centimeters ≡ 10000000000000 fermtometers | 4 centimeters ≡ 40000000000000 fermtometers |
| 1.5 centimeters ≡ 15000000000000 fermtometers | 4.5 centimeters ≡ 45000000000000 fermtometers |
| 2 centimeters ≡ 20000000000000 fermtometers | 5 centimeters ≡ 50000000000000 fermtometers |
| 2.5 centimeters ≡ 25000000000000 fermtometers | 5.5 centimeters ≡ 55000000000000 fermtometers |
| 3 centimeters ≡ 30000000000000 fermtometers | 6 centimeters ≡ 60000000000000 fermtometers |
The femtometre (American spelling femtometer, symbol fm derived from the Danish and Norwegian word femten, "fifteen"+Ancient Greek: μέτρον, metrοn, "unit of measurement") is an SI unit of length equal to 10−15 metres, which means a quadrillionth of one. This distance can also be called a fermi and was so named in honour of physicist Enrico Fermi, as it is a typical length-scale of nuclear physics.
| 1 fermtometers ≡ 1.0E-13 centimeters | 4 fermtometers ≡ 4.0E-13 centimeters |
| 1.5 fermtometers ≡ 1.5E-13 centimeters | 4.5 fermtometers ≡ 4.5E-13 centimeters |
| 2 fermtometers ≡ 2.0E-13 centimeters | 5 fermtometers ≡ 5.0E-13 centimeters |
| 2.5 fermtometers ≡ 2.5E-13 centimeters | 5.5 fermtometers ≡ 5.5E-13 centimeters |
| 3 fermtometers ≡ 3.0E-13 centimeters | 6 fermtometers ≡ 6.0E-13 centimeters |
| 1 centimeters ≡ 10 000 000 000 000 fermtometers |
| 1 fermtometers ≡ 1.0 × 10-13 centimeters |