To convert lunar months to fortnights, multiply the value by 2.10933. To go the other way, multiply fortnights by 0.474085 to get lunar months.
| Lunar Months (lunation) | Fortnights (fn) |
|---|---|
| 1 lunation | 2.10933 fn |
| 2 lunation | 4.21866 fn |
| 3 lunation | 6.32798 fn |
| 4 lunation | 8.43731 fn |
| 5 lunation | 10.5466 fn |
| 6 lunation | 12.656 fn |
| 7 lunation | 14.7653 fn |
| 8 lunation | 16.8746 fn |
| 9 lunation | 18.984 fn |
| 10 lunation | 21.0933 fn |
| 12 lunation | 25.3119 fn |
| 14 lunation | 29.5306 fn |
| 15 lunation | 31.6399 fn |
| 20 lunation | 42.1866 fn |
| 21 lunation | 44.2959 fn |
| 24 lunation | 50.6239 fn |
| 25 lunation | 52.7332 fn |
| 30 lunation | 63.2798 fn |
| 40 lunation | 84.3731 fn |
| 50 lunation | 105.466 fn |
| 60 lunation | 126.56 fn |
| 75 lunation | 158.2 fn |
| 80 lunation | 168.746 fn |
| 100 lunation | 210.933 fn |
| 200 lunation | 421.866 fn |
| 250 lunation | 527.332 fn |
| 300 lunation | 632.798 fn |
| 400 lunation | 843.731 fn |
| 500 lunation | 1,054.66 fn |
| 750 lunation | 1,582 fn |
| 1,000 lunation | 2,109.33 fn |
Lunar month (lunation). A synodic (lunar) month is 29.530589 days, from new moon to new moon.
Fortnight (fn). A fortnight is 14 days (two weeks).
There are 2.10933 fortnights in one lunar month.
Multiply the number of lunar months by 2.10933. For example, 10 lunar months equal 21.0933 fortnights.
One fortnight equals 0.474085 lunar months.
25.3119 fortnights. Other common values: 5 lunar months = 10.5466 fortnights and 100 lunar months = 210.933 fortnights.