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KSI Age, Height, & Weight, & Real Name

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KSI (born 19 June 1993) is a YouTuber, rapper, and boxer who is a member of the Sidemen.

He grew his YouTube channel by uploading gaming videos like Modern Warfare and FIFA.

Currently, he uploads reaction videos on his channel, averaging about 2 to 3 million views.

KSI produces comedy-rap songs like “Lamborghini”, “Little Boy”, and “Friends With Benefits”.

His most popular song is “Lamborghini” which charted at number 30 on the UK Singles Chart.

In this article, you’ll learn who is KSI, his age, height, weight, real name, biography, wiki, career, and more.

KSI stats


WordPress Table with Age Calculation

Full name Olajide Olayinka Williams “JJ” Olatunji
Weight 80 kg (178 lbs)
Height 180 cm (5’11”)
Nationality British
Year of birth 19 June, 1993
Profession YouTuber, Rapper, Boxer

Source: This tweet.

KSI height and weight

Logan Paul is 180 cm (5’11”) in height and about 80 kg (178 lbs) in weight.

He is based in London, England, and is born on 19 June, 1993.

Note: These are estimated figures and not perfect measurements (weight can fluctuate on a day-to-day basis or during a cutting or bulking phase).

Source: This tweet.


KSI is a YouTuber, rapper, and boxer with over 24 million subscribers on his artist channel (KSI).

He started his YouTube career by uploading gaming videos of Modern Warfare, FIFA, Call of Duty, Dead Space, and more.

Currently, he does reaction videos on his YouTube channel, @jjolatunji (over 16 million subscribers).

He is also a member of the Sidemen, a British YouTube group with over 19 million subscribers.

Apart from YouTube, KSI had multiple boxing matches—Amateur, Professional, and Exhibition matches.

He started his boxing career by fighting YouTuber Joe Weller in February 2018 and won by TKO.

In August 2018, KSI fought Logan Paul and had a draw by a majority decision.

He fought Logan again in November 2019 and won by a split decision.

KSI also fought against Brandon Scott, Luis Alcaraz Pineda, Thomas Oliveira, Joe Fournier, and Tommy Fury.

Source: Wikipedia and FITE.

Real name

KSI’s real name is Olajide Olayinka Williams “JJ” Olatunji.

Source: Wikipedia.

Further reading

Logan Paul Age, Height, & Weight

Dillon Danis Age, Height, & Weight

Will Tennyson Age, Height, & Weight