| year | 1 y | 2 y | 3 y | 4 y | 5 y | 6 y | 7 y | 8 y | 9 y | 10 y | 11 y | 12 y | 13 y | 14 y | 15 y | 16 y | 17 y | 18 y | 19 y | 20 y | 21 y | 22 y | 23 y | 24 y | 25 y | 26 y | 27 y | 28 y | 29 y | 30 y | 31 y | 32 y | 33 y | 34 y | 35 y | 36 y | 37 y | 38 y | 39 y | 40 y | 41 y | 42 y | 43 y | 44 y | 45 y | 46 y | 47 y | 48 y | 49 y | 50 y | 51 y | 52 y | 53 y | 54 y | 55 y | 56 y | 57 y | 58 y | 59 y | 60 y | 61 y | 62 y | 63 y | 64 y | 65 y | 66 y | 67 y | 68 y | 69 y | 70 y | 71 y | 72 y | 73 y | 74 y | 75 y | 76 y | 77 y | 78 y | 79 y | 80 y | 81 y | 82 y | 83 y | 84 y | 85 y | 86 y | 87 y | 88 y | 89 y | 90 y | 91 y | 92 y | 93 y | 94 y | 95 y | 96 y | 97 y | 98 y | 99 y | 100 y |
| decade | 0.1 dec | 0.2 dec | 0.3 dec | 0.4 dec | 0.5 dec | 0.6 dec | 0.7 dec | 0.8 dec | 0.9 dec | 1 dec | 1.1 dec | 1.2 dec | 1.3 dec | 1.4 dec | 1.5 dec | 1.6 dec | 1.7 dec | 1.8 dec | 1.9 dec | 2 dec | 2.1 dec | 2.2 dec | 2.3 dec | 2.4 dec | 2.5 dec | 2.6 dec | 2.7 dec | 2.8 dec | 2.9 dec | 3 dec | 3.1 dec | 3.2 dec | 3.3 dec | 3.4 dec | 3.5 dec | 3.6 dec | 3.7 dec | 3.8 dec | 3.9 dec | 4 dec | 4.1 dec | 4.2 dec | 4.3 dec | 4.4 dec | 4.5 dec | 4.6 dec | 4.7 dec | 4.8 dec | 4.9 dec | 5 dec | 5.1 dec | 5.2 dec | 5.3 dec | 5.4 dec | 5.5 dec | 5.6 dec | 5.7 dec | 5.8 dec | 5.9 dec | 6 dec | 6.1 dec | 6.2 dec | 6.3 dec | 6.4 dec | 6.5 dec | 6.6 dec | 6.7 dec | 6.8 dec | 6.9 dec | 7 dec | 7.1 dec | 7.2 dec | 7.3 dec | 7.4 dec | 7.5 dec | 7.6 dec | 7.7 dec | 7.8 dec | 7.9 dec | 8 dec | 8.1 dec | 8.2 dec | 8.3 dec | 8.4 dec | 8.5 dec | 8.6 dec | 8.7 dec | 8.8 dec | 8.9 dec | 9 dec | 9.1 dec | 9.2 dec | 9.3 dec | 9.4 dec | 9.5 dec | 9.6 dec | 9.7 dec | 9.8 dec | 9.9 dec | 10 dec |
A year is the orbital period of the Earth moving in its orbit around the Sun. Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by changes in weather, the hours of daylight, and, consequently, vegetation and soil fertility.
| 1 years = 0.1 decades | 6 years = 0.6 decades |
| 2 years = 0.2 decades | 7 years = 0.7 decades |
| 3 years = 0.3 decades | 8 years = 0.8 decades |
| 4 years = 0.4 decades | 9 years = 0.9 decades |
| 5 years = 0.5 decades | 10 years = 1 decades |
A decade is a period of ten years. The word is derived (via French and Latin) from the Ancient Greek: δεκάς (/ðɛkˈɑːs/, transliteration=dekas), which means a group of ten.
| 1 decades = 10 years | 6 decades = 60 years |
| 2 decades = 20 years | 7 decades = 70 years |
| 3 decades = 30 years | 8 decades = 80 years |
| 4 decades = 40 years | 9 decades = 90 years |
| 5 decades = 50 years | 10 decades = 100 years |
| 1 years = 0.1 decades |
| 1 decades = 10 years |