| Centuries: | 5th century · 6th century · 7th century |
| Decades: | 510s 520s 530s 540s 550s 560s 570s |
| Years: | 542 543 544 545 546 547 548 |
| 545 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 545 DXLV |
| Ab urbe condita | 1298 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1299 – -1298 |
| Bengali calendar | -48 |
| Berber calendar | 1495 |
| Buddhist calendar | 1089 |
| Burmese calendar | -93 |
| Byzantine calendar | 6053 – 6054 |
| Chinese calendar | 甲子年十二月初三日 (3181/3241-12-3) — to —
乙丑年十一月十三日(3182/3242-11-13) |
| Coptic calendar | 261 – 262 |
| Ethiopian calendar | 537 – 538 |
| Hebrew calendar | 4305 – 4306 |
| Hindu calendars | |
| - Bikram Samwat | 601 – 602 |
| - Shaka Samvat | 467 – 468 |
| - Kali Yuga | 3646 – 3647 |
| Holocene calendar | 10545 |
| Iranian calendar | 77 BP – 76 BP |
| Islamic calendar | 79 BH – 78 BH |
| Japanese calendar | |
| Korean calendar | 2878 |
| Thai solar calendar | 1088 |