| Centuries: | 6th century · 7th century · 8th century |
| Decades: | 580s 590s 600s 610s 620s 630s 640s |
| Years: | 615 616 617 618 619 620 621 |
| 618 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 618 DCXVIII |
| Ab urbe condita | 1371 |
| Armenian calendar | 67 ԹՎ ԿԷ |
| Bahá'í calendar | -1226 – -1225 |
| Bengali calendar | 25 |
| Berber calendar | 1568 |
| Buddhist calendar | 1162 |
| Burmese calendar | -20 |
| Byzantine calendar | 6126 – 6127 |
| Chinese calendar | 丁丑年十一月廿九日 (3254/3314-11-29) — to —
戊寅年十二月初十日(3255/3315-12-10) |
| Coptic calendar | 334 – 335 |
| Ethiopian calendar | 610 – 611 |
| Hebrew calendar | 4378 – 4379 |
| Hindu calendars | |
| - Bikram Samwat | 674 – 675 |
| - Shaka Samvat | 540 – 541 |
| - Kali Yuga | 3719 – 3720 |
| Holocene calendar | 10618 |
| Iranian calendar | 4 BP – 3 BP |
| Islamic calendar | 4 BH – 3 BH |
| Japanese calendar | |
| Korean calendar | 2951 |
| Thai solar calendar | 1161 |