181 BC

181 BC in various calendars
Gregorian calendar	181 BC; CLXXXI BC
Ab urbe condita	573
Ancient Egypt era	XXXIII dynasty, 143
- Pharaoh	Ptolemy V Epiphanes, 23
Ancient Greek era	149th Olympiad, year 4
Assyrian calendar	4570
Balinese saka calendar	N/A
Bengali calendar	−773
Berber calendar	770
Buddhist calendar	364
Burmese calendar	−818
Byzantine calendar	5328–5329
Chinese calendar	己未年 (Earth Goat); 2517 or 2310; — to —; 庚申年 (Metal Monkey); 2518 or 2311
Coptic calendar	−464 – −463
Discordian calendar	986
Ethiopian calendar	−188 – −187
Hebrew calendar	3580–3581
Hindu calendars
- Vikram Samvat	−124 – −123
- Shaka Samvat	N/A
- Kali Yuga	2920–2921
Holocene calendar	9820
Iranian calendar	802 BP – 801 BP
Islamic calendar	827 BH – 826 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2153
Minguo calendar	2092 before ROC; 民前2092年
Nanakshahi calendar	−1648
Seleucid era	131/132 AG
Thai solar calendar	362–363
Tibetan calendar	阴土羊年; (female Earth-Goat); −54 or −435 or −1207; — to —; 阳金猴年; (male Iron-Monkey); −53 or −434 or −1206

Millennium:	1st millennium BC
Centuries:	3rd century BC; 2nd century BC ; 1st century BC;
Decades:	200s BC; 190s BC; 180s BC ; 170s BC; 160s BC;
Years:	184 BC; 183 BC; 182 BC; 181 BC ; 180 BC; 179 BC; 178 BC;

Year 181 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Cethegus and Tamphilus (or, less frequently, year 573 Ab urbe condita). The denomination 181 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.

Gregorian calendar	181 BC CLXXXI BC
Ab urbe condita	573
Ancient Egypt era	XXXIII dynasty, 143
- Pharaoh	Ptolemy V Epiphanes, 23
Ancient Greek era	149th Olympiad, year 4
Assyrian calendar	4570
Balinese saka calendar	N/A
Bengali calendar	−773
Berber calendar	770
Buddhist calendar	364
Burmese calendar	−818
Byzantine calendar	5328–5329
Chinese calendar	己未年 (Earth Goat) 2517 or 2310 — to — 庚申年 (Metal Monkey) 2518 or 2311
Coptic calendar	−464 – −463
Discordian calendar	986
Ethiopian calendar	−188 – −187
Hebrew calendar	3580–3581
Hindu calendars
- Vikram Samvat	−124 – −123
- Shaka Samvat	N/A
- Kali Yuga	2920–2921
Holocene calendar	9820
Iranian calendar	802 BP – 801 BP
Islamic calendar	827 BH – 826 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2153
Minguo calendar	2092 before ROC 民前2092年
Nanakshahi calendar	−1648
Seleucid era	131/132 AG
Thai solar calendar	362–363
Tibetan calendar	阴土羊年 (female Earth-Goat) −54 or −435 or −1207 — to — 阳金猴年 (male Iron-Monkey) −53 or −434 or −1206