647 BC

Millennium: 1st millennium BC
Centuries:
Decades:
Years:
647 BC in various calendars
Gregorian calendar647 BC
DCXLVII BC
Ab urbe condita107
Ancient Egypt eraXXVI dynasty, 18
- PharaohPsamtik I, 18
Ancient Greek era33rd Olympiad, year 2
Assyrian calendar4104
Balinese saka calendarN/A
Bengali calendar−1239
Berber calendar304
Buddhist calendar−102
Burmese calendar−1284
Byzantine calendar4862–4863
Chinese calendar癸酉年 (Water Rooster)
2051 or 1844
    — to —
甲戌年 (Wood Dog)
2052 or 1845
Coptic calendar−930 – −929
Discordian calendar520
Ethiopian calendar−654 – −653
Hebrew calendar3114–3115
Hindu calendars
 - Vikram Samvat−590 – −589
 - Shaka SamvatN/A
 - Kali Yuga2454–2455
Holocene calendar9354
Iranian calendar1268 BP – 1267 BP
Islamic calendar1307 BH – 1306 BH
Javanese calendarN/A
Julian calendarN/A
Korean calendar1687
Minguo calendar2558 before ROC
民前2558年
Nanakshahi calendar−2114
Thai solar calendar−104 – −103
Tibetan calendar阴水鸡年
(female Water-Rooster)
−520 or −901 or −1673
    — to —
阳木狗年
(male Wood-Dog)
−519 or −900 or −1672

The year 647 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 107 Ab urbe condita . The denomination 647 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.