decade | 1 dec | 2 dec | 3 dec | 4 dec | 5 dec | 6 dec | 7 dec | 8 dec | 9 dec | 10 dec | 11 dec | 12 dec | 13 dec | 14 dec | 15 dec | 16 dec | 17 dec | 18 dec | 19 dec | 20 dec | 21 dec | 22 dec | 23 dec | 24 dec | 25 dec | 26 dec | 27 dec | 28 dec | 29 dec | 30 dec | 31 dec | 32 dec | 33 dec | 34 dec | 35 dec | 36 dec | 37 dec | 38 dec | 39 dec | 40 dec | 41 dec | 42 dec | 43 dec | 44 dec | 45 dec | 46 dec | 47 dec | 48 dec | 49 dec | 50 dec | 51 dec | 52 dec | 53 dec | 54 dec | 55 dec | 56 dec | 57 dec | 58 dec | 59 dec | 60 dec | 61 dec | 62 dec | 63 dec | 64 dec | 65 dec | 66 dec | 67 dec | 68 dec | 69 dec | 70 dec | 71 dec | 72 dec | 73 dec | 74 dec | 75 dec | 76 dec | 77 dec | 78 dec | 79 dec | 80 dec | 81 dec | 82 dec | 83 dec | 84 dec | 85 dec | 86 dec | 87 dec | 88 dec | 89 dec | 90 dec | 91 dec | 92 dec | 93 dec | 94 dec | 95 dec | 96 dec | 97 dec | 98 dec | 99 dec | 100 dec |
century | 0.1 c | 0.2 c | 0.3 c | 0.4 c | 0.5 c | 0.6 c | 0.7 c | 0.8 c | 0.9 c | 1 c | 1.1 c | 1.2 c | 1.3 c | 1.4 c | 1.5 c | 1.6 c | 1.7 c | 1.8 c | 1.9 c | 2 c | 2.1 c | 2.2 c | 2.3 c | 2.4 c | 2.5 c | 2.6 c | 2.7 c | 2.8 c | 2.9 c | 3 c | 3.1 c | 3.2 c | 3.3 c | 3.4 c | 3.5 c | 3.6 c | 3.7 c | 3.8 c | 3.9 c | 4 c | 4.1 c | 4.2 c | 4.3 c | 4.4 c | 4.5 c | 4.6 c | 4.7 c | 4.8 c | 4.9 c | 5 c | 5.1 c | 5.2 c | 5.3 c | 5.4 c | 5.5 c | 5.6 c | 5.7 c | 5.8 c | 5.9 c | 6 c | 6.1 c | 6.2 c | 6.3 c | 6.4 c | 6.5 c | 6.6 c | 6.7 c | 6.8 c | 6.9 c | 7 c | 7.1 c | 7.2 c | 7.3 c | 7.4 c | 7.5 c | 7.6 c | 7.7 c | 7.8 c | 7.9 c | 8 c | 8.1 c | 8.2 c | 8.3 c | 8.4 c | 8.5 c | 8.6 c | 8.7 c | 8.8 c | 8.9 c | 9 c | 9.1 c | 9.2 c | 9.3 c | 9.4 c | 9.5 c | 9.6 c | 9.7 c | 9.8 c | 9.9 c | 10 c |
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.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
decade | dec | ≡ 10 years (10 y) | = 315 569 260 s | Metric system SI |
decades | centuries | decades | centuries |
---|---|---|---|
1 | = 0.1 | 6 | = 0.6 |
2 | = 0.2 | 7 | = 0.7 |
3 | = 0.3 | 8 | = 0.8 |
4 | = 0.4 | 9 | = 0.9 |
5 | = 0.5 | 10 | = 1 |
A century (from the Latin centum, meaning one hundred; abbreviated c.) is a period of 100 years.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
century | c | ≡ 100 years (100 y) | = 3.1556952 Gs | Metric system SI |
centuries | decades | centuries | decades |
---|---|---|---|
1 | = 10 | 6 | = 60 |
2 | = 20 | 7 | = 70 |
3 | = 30 | 8 | = 80 |
4 | = 40 | 9 | = 90 |
5 | = 50 | 10 | = 100 |
decades | centuries |
---|---|
1 | = 0.1 |
10 | = 1 |
You can find the conversion in other languages in the following:
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |