| fortnight | 1 fn | 2 fn | 3 fn | 4 fn | 5 fn | 6 fn | 7 fn | 8 fn | 9 fn | 10 fn | 11 fn | 12 fn | 13 fn | 14 fn | 15 fn | 16 fn | 17 fn | 18 fn | 19 fn | 20 fn | 21 fn | 22 fn | 23 fn | 24 fn | 25 fn | 26 fn | 27 fn | 28 fn | 29 fn | 30 fn | 31 fn | 32 fn | 33 fn | 34 fn | 35 fn | 36 fn | 37 fn | 38 fn | 39 fn | 40 fn | 41 fn | 42 fn | 43 fn | 44 fn | 45 fn | 46 fn | 47 fn | 48 fn | 49 fn | 50 fn | 51 fn | 52 fn | 53 fn | 54 fn | 55 fn | 56 fn | 57 fn | 58 fn | 59 fn | 60 fn | 61 fn | 62 fn | 63 fn | 64 fn | 65 fn | 66 fn | 67 fn | 68 fn | 69 fn | 70 fn | 71 fn | 72 fn | 73 fn | 74 fn | 75 fn | 76 fn | 77 fn | 78 fn | 79 fn | 80 fn | 81 fn | 82 fn | 83 fn | 84 fn | 85 fn | 86 fn | 87 fn | 88 fn | 89 fn | 90 fn | 91 fn | 92 fn | 93 fn | 94 fn | 95 fn | 96 fn | 97 fn | 98 fn | 99 fn | 100 fn |
| petasecond | 1.2096 × 10-9 Ps | 2.4192 × 10-9 Ps | 3.6288 × 10-9 Ps | 4.8384 × 10-9 Ps | 6.048 × 10-9 Ps | 7.2576 × 10-9 Ps | 8.4672 × 10-9 Ps | 9.6768 × 10-9 Ps | 1.08864 × 10-8 Ps | 1.2096 × 10-8 Ps | 1.33056 × 10-8 Ps | 1.45152 × 10-8 Ps | 1.57248 × 10-8 Ps | 1.69344 × 10-8 Ps | 1.8144 × 10-8 Ps | 1.93536 × 10-8 Ps | 2.05632 × 10-8 Ps | 2.17728 × 10-8 Ps | 2.29824 × 10-8 Ps | 2.4192 × 10-8 Ps | 2.54016 × 10-8 Ps | 2.66112 × 10-8 Ps | 2.78208 × 10-8 Ps | 2.90304 × 10-8 Ps | 3.024 × 10-8 Ps | 3.14496 × 10-8 Ps | 3.26592 × 10-8 Ps | 3.38688 × 10-8 Ps | 3.50784 × 10-8 Ps | 3.6288 × 10-8 Ps | 3.74976 × 10-8 Ps | 3.87072 × 10-8 Ps | 3.99168 × 10-8 Ps | 4.11264 × 10-8 Ps | 4.2336 × 10-8 Ps | 4.35456 × 10-8 Ps | 4.47552 × 10-8 Ps | 4.59648 × 10-8 Ps | 4.71744 × 10-8 Ps | 4.8384 × 10-8 Ps | 4.95936 × 10-8 Ps | 5.08032 × 10-8 Ps | 5.20128 × 10-8 Ps | 5.32224 × 10-8 Ps | 5.4432 × 10-8 Ps | 5.56416 × 10-8 Ps | 5.68512 × 10-8 Ps | 5.80608 × 10-8 Ps | 5.92704 × 10-8 Ps | 6.048 × 10-8 Ps | 6.16896 × 10-8 Ps | 6.28992 × 10-8 Ps | 6.41088 × 10-8 Ps | 6.53184 × 10-8 Ps | 6.6528 × 10-8 Ps | 6.77376 × 10-8 Ps | 6.89472 × 10-8 Ps | 7.01568 × 10-8 Ps | 7.13664 × 10-8 Ps | 7.2576 × 10-8 Ps | 7.37856 × 10-8 Ps | 7.49952 × 10-8 Ps | 7.62048 × 10-8 Ps | 7.74144 × 10-8 Ps | 7.8624 × 10-8 Ps | 7.98336 × 10-8 Ps | 8.10432 × 10-8 Ps | 8.22528 × 10-8 Ps | 8.34624 × 10-8 Ps | 8.4672 × 10-8 Ps | 8.58816 × 10-8 Ps | 8.70912 × 10-8 Ps | 8.83008 × 10-8 Ps | 8.95104 × 10-8 Ps | 9.072 × 10-8 Ps | 9.19296 × 10-8 Ps | 9.31392 × 10-8 Ps | 9.43488 × 10-8 Ps | 9.55584 × 10-8 Ps | 9.6768 × 10-8 Ps | 9.79776 × 10-8 Ps | 9.91872 × 10-8 Ps | 1.003968 × 10-7 Ps | 1.016064 × 10-7 Ps | 1.02816 × 10-7 Ps | 1.040256 × 10-7 Ps | 1.052352 × 10-7 Ps | 1.064448 × 10-7 Ps | 1.076544 × 10-7 Ps | 1.08864 × 10-7 Ps | 1.100736 × 10-7 Ps | 1.112832 × 10-7 Ps | 1.124928 × 10-7 Ps | 1.137024 × 10-7 Ps | 1.14912 × 10-7 Ps | 1.161216 × 10-7 Ps | 1.173312 × 10-7 Ps | 1.185408 × 10-7 Ps | 1.197504 × 10-7 Ps | 1.2096 × 10-7 Ps |
A fortnight is a unit of time equal to 14 days (2 weeks). The word derives from the Old English: fēowertyne niht, meaning "fourteen nights".
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| fortnight | fn | ≡ 2 wk | = 1.2096 Ms | Metric system SI |
| fortnights | petaseconds | fortnights | petaseconds |
|---|---|---|---|
| 1 | = 1.2096E-9 | 6 | = 7.2576E-9 |
| 2 | = 2.4192E-9 | 7 | = 8.4672E-9 |
| 3 | = 3.6288E-9 | 8 | = 9.6768E-9 |
| 4 | = 4.8384E-9 | 9 | = 1.08864E-8 |
| 5 | = 6.048E-9 | 10 | = 1.2096E-8 |
Petasecond is equal to 1 000 000 000 000 000 second (unit of time), comes from a combination of the metric prefix peta (P) with the second (s). Plural name is petaconds with symbol is Ps.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| petasecond | Ps | ≡ 1 000 000 000 000 000 second | ≡ 1015 second | Metric system SI |
| petaseconds | fortnights | petaseconds | fortnights |
|---|---|---|---|
| 1 | = 826719576.71958 | 6 | = 4960317460.3175 |
| 2 | = 1653439153.4392 | 7 | = 5787037037.037 |
| 3 | = 2480158730.1587 | 8 | = 6613756613.7566 |
| 4 | = 3306878306.8783 | 9 | = 7440476190.4762 |
| 5 | = 4133597883.5979 | 10 | = 8267195767.1958 |
| fortnights | petaseconds |
|---|---|
| 1 | = 1.2096 × 10-9 |
| 826,719,576.71958 | = 1 |
| 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 …) |