| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 818 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 818 DCCCXVIII |
| Ab urbe condita | 1571 |
| Armenian calendar | 267 ԹՎ ՄԿԷ |
| Assyrian calendar | 5568 |
| Balinese saka calendar | 739–740 |
| Bengali calendar | 225 |
| Berber calendar | 1768 |
| Buddhist calendar | 1362 |
| Burmese calendar | 180 |
| Byzantine calendar | 6326–6327 |
| Chinese calendar | 丁酉年 (Fire Rooster) 3515 or 3308 — to — 戊戌年 (Earth Dog) 3516 or 3309 |
| Coptic calendar | 534–535 |
| Discordian calendar | 1984 |
| Ethiopian calendar | 810–811 |
| Hebrew calendar | 4578–4579 |
| Hindu calendars | |
| - Vikram Samvat | 874–875 |
| - Shaka Samvat | 739–740 |
| - Kali Yuga | 3918–3919 |
| Holocene calendar | 10818 |
| Iranian calendar | 196–197 |
| Islamic calendar | 202–203 |
| Japanese calendar | Kōnin 9 (弘仁９年) |
| Javanese calendar | 714–715 |
| Julian calendar | 818 DCCCXVIII |
| Korean calendar | 3151 |
| Minguo calendar | 1094 before ROC 民前1094年 |
| Nanakshahi calendar | −650 |
| Seleucid era | 1129/1130 AG |
| Thai solar calendar | 1360–1361 |
| Tibetan calendar | 阴火鸡年 (female Fire-Rooster) 944 or 563 or −209 — to — 阳土狗年 (male Earth-Dog) 945 or 564 or −208 |
Year 818 (DCCCXVIII) was a common year starting on Friday (link will display the full calendar) of the Julian calendar.