| Era | Length of Reign | Emperor | % Correct |
|---|---|---|---|
| Modern Japan | 1926-1989 | Showa | 92%
|
| Modern Japan | 1867-1912 | Meiji | 74%
|
| Modern Japan | 2019- | Naruhito | 66%
|
| Legendary Emperor | 660 BC-585 BC | Jimmu | 64%
|
| Modern Japan | 1989-2019 | Akihito | 56%
|
| Modern Japan | 1912-1926 | Taisho | 54%
|
| Edo Period | 1846-1867 | Komei | 38%
|
| Kamakura Period | 1183-1198 | Go-Toba | 36%
|
| Nanboku-cho Period | 1318-1339 | Go-Daigo | 31%
|
| Heian Period | 1107-1123 | Toba | 31%
|
| Heian Period | 806-809 | Heizei | 28%
|
| Heian Period | 1180-1185 | Antoku | 25%
|
| Heian Period | 897-930 | Daigo | 25%
|
| Heian Period | 1155-1158 | Go-Shirakawa | 25%
|
| Heian Period | 781-806 | Kanmu | 23%
|
| Kamakura Period | 1301-1308 | Go-Nijo | 21%
|
| Heian Period | 1073-1087 | Shirakawa | 21%
|
| Edo Period | 1762-1771 | Go-Sakuramachi | 20%
|
| Heian Period | 1158-1165 | Nijo | 20%
|
| Kofun Period | 313-399 | Nintoku | 20%
|
| Edo Period | 1735-1747 | Sakuramachi | 20%
|
| Kamakura Period | 1198-1210 | Tsuchimikado | 20%
|
| Legendary Emperor | 548 BC-510 BC | Annei | 18%
|
| Muromachi Period | 1428-1464 | Go-Hanazono | 18%
|
| Kamakura Period | 1242-1246 | Go-Saga | 18%
|
| Muromachi Period | 1464-1500 | Go-Tsuchimikado | 18%
|
| Kamakura Period | 1308-1318 | Hanazono | 18%
|
| Asuka Period | 539-571 | Kinmei | 18%
|
| Heian Period | 967-969 | Reizei | 18%
|
| Asuka Period | 592-628 | Suiko | 18%
|
| Legendary Emperor | 581 BC-548 BC | Suizei | 18%
|
| Heian Period | 1168-1180 | Takakura | 18%
|
| Nanboku-cho Period | 1339-1368 | Go-Murakami | 16%
|
| Heian Period | 1045-1068 | Go-Reizei | 16%
|
| Legendary Emperor | 392 BC-291 BC | Koan | 16%
|
| Edo Period | 1817-1846 | Ninko | 16%
|
| Kofun Period | 270-310 | Ojin | 16%
|
| Nara Period | 764-770 | Shotoku | 16%
|
| Kofun Period | 29 BC-70 AD | Suinin | 16%
|
| Asuka Period | 585-587 | Yomei | 16%
|
| Nanboku-cho Period | 1368-1383 | Chokei | 15%
|
| Nara Period | 707-715 | Genmei | 15%
|
| Kamakura Period | 1246-1260 | Go-Fukakusa | 15%
|
| Edo Period | 1771-1779 | Go-Momozono | 15%
|
| Muromachi Period | 1526-1557 | Go-Nara | 15%
|
| Kamakura Period | 1274-1287 | Go-Uda | 15%
|
| Kamakura Period | 1210-1221 | Juntoku | 15%
|
| Legendary Emperor | 158 BC-98 BC | Kaika | 15%
|
| Kamakura Period | 1260-1274 | Kameyama | 15%
|
| Nara Period | 749-758 | Koken | 15%
|
| Edo Period | 1747-1762 | Momozono | 15%
|
| Heian Period | 946-967 | Murakami | 15%
|
| Asuka Period | 655-661 | Saimei | 15%
|
| Kofun Period | 97 BC-29 BC | Sujin | 15%
|
| Heian Period | 1123-1142 | Sutoku | 15%
|
| Kamakura Period | 1287-1298 | Fushimi | 13%
|
| Kamakura Period | 1298-1301 | Go-Fushimi | 13%
|
| Heian Period | 1016-1036 | Go-Ichijo | 13%
|
| Nanboku-cho Period | 1383-1392 | Go-Kameyama | 13%
|
| Edo Period | 1586-1611 | Go-Yozei | 13%
|
| Heian Period | 986-1011 | Ichijo | 13%
|
| Asuka Period | 690-697 | Jito | 13%
|
| Edo Period | 1779-1817 | Kokaku | 13%
|
| Heian Period | 809-823 | Saga | 13%
|
| Muromachi Period | 1412-1428 | Shoko | 13%
|
| Nara Period | 724-749 | Shomu | 13%
|
| Asuka Period | 661-672 | Tenji | 13%
|
| Muromachi Period | 1392-1412 | Go-Komatsu | 11%
|
| Edo Period | 1655-1663 | Go-Sai | 11%
|
| Heian Period | 1068-1073 | Go-Sanjo | 11%
|
| Heian Period | 1142-1155 | Konoe | 11%
|
| Edo Period | 1629-1643 | Meisho | 11%
|
| Edo Period | 1709-1735 | Nakamikado | 11%
|
| Azuchi-Momoyama Period | 1557-1586 | Ogimachi | 11%
|
| Heian Period | 1165-1168 | Rokujo | 11%
|
| Heian Period | 1011-1016 | Sanjo | 11%
|
| Kamakura Period | 1232-1242 | Shijo | 11%
|
| Heian Period | 876-884 | Yozei | 11%
|
| Kofun Period | 454-456 | Anko | 10%
|
| Kofun Period | 192-200 | Chuai | 10%
|
| Kamakura Period | 1221-1221 | Chukyo | 10%
|
| Heian Period | 969-984 | En'yu | 10%
|
| Kamakura Period | 1221-1232 | Go-Horikawa | 10%
|
| Muromachi Period | 1500-1526 | Go-Kashiwabara | 10%
|
| Edo Period | 1643-1654 | Go-Komyo | 10%
|
| Edo Period | 1611-1629 | Go-Mizunoo | 10%
|
| Heian Period | 1036-1045 | Go-Suzaku | 10%
|
| Edo Period | 1687-1709 | Higashiyama | 10%
|
| Heian Period | 1087-1107 | Horikawa | 10%
|
| Legendary Emperor | 510 BC-477 BC | Itoku | 10%
|
| Heian Period | 984-986 | Kazan | 10%
|
| Kofun Period | 507-531 | Keitai | 10%
|
| Legendary Emperor | 214 BC-158 BC | Kogen | 10%
|
| Asuka Period | 642-645 | Kogyoku | 10%
|
| Heian Period | 884-887 | Koko | 10%
|
| Legendary Emperor | 290 BC-215 BC | Korei | 10%
|
| Legendary Emperor | 475 BC-393 BC | Kosho | 10%
|
| Asuka Period | 645-654 | Kotoku | 10%
|
| Kofun Period | 488-498 | Ninken | 10%
|
| Edo Period | 1663-1687 | Reigen | 10%
|
| Heian Period | 858-876 | Seiwa | 10%
|
| Kofun Period | 536-539 | Senka | 10%
|
| Heian Period | 930-946 | Suzaku | 10%
|
| Heian Period | 887-897 | Uda | 10%
|
| Kofun Period | 456-479 | Yuryaku | 10%
|
| Asuka Period | 572-585 | Bidatsu | 8%
|
| Nara Period | 715-724 | Gensho | 8%
|
| Kofun Period | 406-410 | Hanzei | 8%
|
| Kofun Period | 413-453 | Ingyo | 8%
|
| Asuka Period | 629-641 | Jomei | 8%
|
| Heian Period | 823-833 | Junna | 8%
|
| Nara Period | 758-764 | Junnin | 8%
|
| Kofun Period | 71-130 | Keiko | 8%
|
| Asuka Period | 697-707 | Monmu | 8%
|
| Heian Period | 833-850 | Ninmyo | 8%
|
| Kofun Period | 400-405 | Richu | 8%
|
| Kofun Period | 131-190 | Seimu | 8%
|
| Asuka Period | 587-592 | Sushun | 8%
|
| Asuka Period | 673-686 | Tenmu | 8%
|
| Asuka Period | 672 | Kobun | 7%
|
| Nara Period | 770-781 | Konin | 7%
|
| Heian Period | 850-858 | Montoku | 7%
|
| Kofun Period | 531-536 | Ankan | 5%
|
| Kofun Period | 498-507 | Buretsu | 5%
|
| Kofun Period | 485-487 | Kenzo | 5%
|
| Kofun Period | 480-484 | Seinei | 5%
|