A decade is a period of 10 years. The word is derived from the Ancient Greek: δεκάς (transliteration=dekas), which means a group of ten. Other words for spans of years also come from Latin: biennium (2 years), trienni ..more definition+
In relation to the base unit of [time] => (seconds), 1 Octaeteris (octa) is equal to 252460800 seconds, while 1 Decades (dec) = 315400000 seconds.| 1 Octaeteris | to common time units |
|---|---|
| 1 octa | = 252460800 seconds (s) |
| 1 octa | = 4207680 minutes (min) |
| 1 octa | = 70128 hours (hr) |
| 1 octa | = 2922 days (day) |
| 1 octa | = 417.42857142857 weeks (wk) |
| 1 octa | = 8.0054794520548 years (yr) |
| 1 octa | = 96.065753424658 months (mo) |
| 1 octa | = 0.80044641724794 decades (dec) |
| 1 octa | = 0.080044641724794 centuries (cent) |
| 1 octa | = 0.0080044641724794 millenniums (mill) |
| Octaeteris | to Decades (table conversion) |
|---|---|
| 1 octa | = 0.80044641724794 dec |
| 2 octa | = 1.6008928344959 dec |
| 3 octa | = 2.4013392517438 dec |
| 4 octa | = 3.2017856689918 dec |
| 5 octa | = 4.0022320862397 dec |
| 6 octa | = 4.8026785034876 dec |
| 7 octa | = 5.6031249207356 dec |
| 8 octa | = 6.4035713379835 dec |
| 9 octa | = 7.2040177552315 dec |
| 10 octa | = 8.0044641724794 dec |
| 20 octa | = 16.008928344959 dec |
| 30 octa | = 24.013392517438 dec |
| 40 octa | = 32.017856689918 dec |
| 50 octa | = 40.022320862397 dec |
| 60 octa | = 48.026785034876 dec |
| 70 octa | = 56.031249207356 dec |
| 80 octa | = 64.035713379835 dec |
| 90 octa | = 72.040177552315 dec |
| 100 octa | = 80.044641724794 dec |
| 200 octa | = 160.08928344959 dec |
| 300 octa | = 240.13392517438 dec |
| 400 octa | = 320.17856689918 dec |
| 500 octa | = 400.22320862397 dec |
| 600 octa | = 480.26785034876 dec |
| 700 octa | = 560.31249207356 dec |
| 800 octa | = 640.35713379835 dec |
| 900 octa | = 720.40177552315 dec |
| 1000 octa | = 800.44641724794 dec |
| 2000 octa | = 1600.8928344959 dec |
| 4000 octa | = 3201.7856689918 dec |
| 5000 octa | = 4002.2320862397 dec |
| 7500 octa | = 6003.3481293595 dec |
| 10000 octa | = 8004.4641724794 dec |
| 25000 octa | = 20011.160431198 dec |
| 50000 octa | = 40022.320862397 dec |
| 100000 octa | = 80044.641724794 dec |
| 1000000 octa | = 800446.41724794 dec |
| 1000000000 octa | = 800446417.24794 dec |