| Origin | Seoul, South Korea |
| Debut | April 1, 2020 |
| Disbanded | December 31, 2023 |
| Members | Jaeyun Donggeon Chan Jisu J.You Kyungho Daigo Yeojeong Chihoon Minsu Jerome Woonggi Renta |
| Oldest Member | Donggeon |
| Youngest Member (Maknae) | Yeojeong |
| Tallest Member | Kyungho |
| Shortest Member | Minsu |
TO1 Former Members Profile
Jaeyun
| Full Name | Lee Jae Yun |
| Birthday | August 16, 2000 |
| Birthplace | Buk-gu, Daegu, South Korea |
| Age | 26 years and 1 month old |
| Height | 5 feet 9 inches (175 cm) |
| Weight | 139 lbs (63 kg) |
| Zodiac Sign | Leo |
| Chinese Zodiac Sign | Dragon |
| Blood Type | B |
| MBTI | ENFJ |
| Position | Leader, Main Vocalist |
| now__yun |
Donggeon
| Full Name | Song Dong Geon |
| Birthday | July 15, 1999 |
| Birthplace | Cheongju, Chungcheongbuk-do, South Korea |
| Age | 27 years and 2 months old |
| Height | 5 feet 11 inches (180 cm) |
| Weight | 152 lbs (69 kg) |
| Zodiac Sign | Cancer |
| Chinese Zodiac Sign | Rabbit |
| Blood Type | B |
| MBTI | ISFP |
| Position | Main Vocalist |
| geonsongdong__ |
Chan
| Full Name | Cho Chan Hyuk |
| Birthday | December 8, 1999 |
| Birthplace | Cheonan, Chungcheongnam-do, South Korea |
| Age | 26 years and 10 months old |
| Height | 5 feet 11 inches (180 cm) |
| Weight | 143.3 lbs (65 kg) |
| Zodiac Sign | Sagittarius |
| Chinese Zodiac Sign | Rabbit |
| Blood Type | O |
| MBTI | ENTJ |
| Position | Main Dancer, Rapper, Producer |
| 1riwababa |
Jisu
| Full Name | Choi Ji Su |
| Birthday | January 19, 2000 |
| Birthplace | Busan, South Korea |
| Age | 26 years and 8 months old |
| Height | 5 feet 10 inches (178.4 cm) |
| Weight | 141 lbs (64 kg) |
| Zodiac Sign | Capricorn |
| Chinese Zodiac Sign | Rabbit |
| Blood Type | B |
| MBTI | INFP |
| Position | Lead Dancer, Vocalist |
| sinwu_ |
J.You
| Full Name | Kim Je You |
| Birthday | November 2, 2000 |
| Birthplace | Changwon, Gyeongsangnam-do, South Korea |
| Age | 25 years and 11 months old |
| Height | 5 feet 8 inches (174 cm) |
| Weight | 132 lbs (60 kg) |
| Zodiac Sign | Scorpio |
| Chinese Zodiac Sign | Dragon |
| Blood Type | B |
| MBTI | ENFP |
| Position | Rapper, Visual |
| j.youreka |
Kyungho
| Full Name | Jang Kyung Ho |
| Birthday | May 7, 2001 |
| Birthplace | Apgujeong-dong, Seoul, South Korea |
| Age | 25 years and 5 months old |
| Height | 6 feet 0 inches (183 cm) |
| Weight | 154 lbs (70 kg) |
| Zodiac Sign | Taurus |
| Chinese Zodiac Sign | Snake |
| Blood Type | A |
| MBTI | INFP |
| Education | Hanlim Multi Arts High School |
| Position | Main Dancer, Vocalist |
| security_0507 |
Daigo
| Full Name | Kobayashi Daigo |
| Birthday | January 21, 2002 |
| Birthplace | Tokyo, Japan |
| Age | 24 years and 8 months old |
| Height | 5 feet 8 inches (173 cm) |
| Weight | 126 lbs (57 kg) |
| Zodiac Sign | Aquarius |
| Chinese Zodiac Sign | Snake |
| Blood Type | B |
| MBTI | ENFP |
| Position | Vocalist, Dancer |
| dfive02 |
Yeojeong
| Full Name | Jeon Yeoyeo Jeong |
| Birthday | January 29, 2005 |
| Birthplace | Daejeon, South Korea |
| Age | 21 years and 8 months old |
| Height | 6 feet 0 inches (182 cm) |
| Weight | 139 lbs (63 kg) |
| Zodiac Sign | Aquarius |
| Chinese Zodiac Sign | Rooster |
| Blood Type | AB |
| MBTI | INFP |
| Position | Vocalist, Maknae |
| im.travel5 |
Chihoon
| Full Name | Choi Chi Hoon |
| Birthday | April 27, 1999 |
| Birthplace | Incheon, South Korea |
| Age | 27 years and 5 months old |
| Height | 5 feet 8 inches (174 cm) |
| Weight | 117 lbs (53 kg) |
| Zodiac Sign | Taurus |
| Chinese Zodiac Sign | Rabbit |
| Blood Type | A |
| MBTI | INFP |
| Position | Rapper, Vocalist, Producer |
| vaan_ivi |
Minsu
| Full Name | Kim Min Su |
| Birthday | March 20, 2000 |
| Birthplace | Cheongju, South Korea |
| Age | 26 years and 6 months old |
| Height | 5 feet 8 inches (172 cm) |
| Weight | 128 lbs (58 kg) |
| Zodiac Sign | Pisces |
| Chinese Zodiac Sign | Dragon |
| Blood Type | B |
| MBTI | ISFJ |
| Position | Dancer, Vocalist |
| minminmul |
Jerome
| Full Name | Oh Sung Min |
| Birthday | August 25, 2001 |
| Birthplace | Suwon, Gyeonggi-do, South Korea |
| Age | 25 years and 1 month old |
| Height | 5 feet 11 inches (181 cm) |
| Weight | 137 lbs (62 kg) |
| Zodiac Sign | Virgo |
| Chinese Zodiac Sign | Snake |
| Blood Type | O |
| MBTI | ENFJ |
| Position | Vocalist, Visual |
| xmnrome |
Woonggi
| Full Name | Cha Woong Ki |
| Birthday | April 23, 2002 |
| Birthplace | Seoul, South Korea |
| Age | 24 years and 5 months old |
| Height | 5 feet 9 inches (175 cm) |
| Weight | 123 lbs (56 kg) |
| Zodiac Sign | Taurus |
| Chinese Zodiac Sign | Horse |
| Blood Type | B |
| MBTI | ENFP |
| Education | Hanlim Multi Arts School; Konkuk University |
| Position | Vocalist, Maknae |
| chawoongki |
Renta
| Full Name | Nishijima Renta |
| Birthday | February 16, 2003 |
| Birthplace | Nagasaki, Japan |
| Age | 23 years and 7 months old |
| Height | 5 feet 11 inches (180 cm) |
| Weight | 139 lbs (63 kg) |
| Zodiac Sign | Aquarius |
| Chinese Zodiac Sign | Goat |
| Blood Type | A |
| MBTI | INFP |
| Position | Rapper, Dancer |
| reeenta_ |
Member Ages: Oldest to Youngest
| Member | Birthday | Age |
|---|---|---|
| Chihoon | April 27, 1999 | 27 years, 5 months, 16 days old |
| Donggeon | July 15, 1999 | 27 years, 2 months, 28 days old |
| Chan | December 8, 1999 | 26 years, 10 months, 5 days old |
| Jisu | January 19, 2000 | 26 years, 8 months, 24 days old |
| Minsu | March 20, 2000 | 26 years, 6 months, 23 days old |
| Jaeyun | August 16, 2000 | 26 years, 1 month, 27 days old |
| J.You | November 2, 2000 | 25 years, 11 months, 11 days old |
| Kyungho | May 7, 2001 | 25 years, 5 months, 6 days old |
| Jerome | August 25, 2001 | 25 years, 1 month, 18 days old |
| Daigo | January 21, 2002 | 24 years, 8 months, 22 days old |
| Woonggi | April 23, 2002 | 24 years, 5 months, 20 days old |
| Renta | February 16, 2003 | 23 years, 7 months, 27 days old |
| Yeojeong | January 29, 2005 | 21 years, 8 months, 14 days old |
FAQs
When did TO1 debut?
TO1 debuted on April 1, 2020, with their album REASON FOR BEING: 仁 (Benevolence).