| Millennium: | 1st millennium BC |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| Gregorian calendar | 513 BC DXII BC |
| Ab urbe condita | 241 |
| Ancient Egypt era | XXVII dynasty, 13 |
| - Pharaoh | Darius I of Persia, 9 |
| Ancient Greek era | 66th Olympiad, year 4 |
| Assyrian calendar | 4238 |
| Bengali calendar | −1105 |
| Berber calendar | 438 |
| Buddhist calendar | 32 |
| Burmese calendar | −1150 |
| Byzantine calendar | 4996–4997 |
| Chinese calendar |
丁亥年 (Fire Pig) 2184 or 2124 — to — 戊子年 (Earth Rat) 2185 or 2125 |
| Coptic calendar | −796 – −795 |
| Discordian calendar | 654 |
| Ethiopian calendar | −520 – −519 |
| Hebrew calendar | 3248–3249 |
| Hindu calendars | |
| - Vikram Samvat | −456 – −455 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2588–2589 |
| Holocene calendar | 9488 |
| Iranian calendar | 1134 BP – 1133 BP |
| Islamic calendar | 1169 BH – 1168 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 1821 |
| Minguo calendar | 2424 before ROC 民前2424年 |
| Nanakshahi calendar | −1980 |
| Thai solar calendar | 30–31 |
The year 513 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 241 Ab urbe condita . The denomination 513 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.