This straightforward format has gained traction with millions worldwide, and led to a collaboration with US department store Walmart to create his own range of toys.
Ryan recently explained his simple approach to US media outlet NBC: "I'm entertaining and I'm funny."
Forbes magazine says all but $1.38 million of the $32 million earned by Ryan's channel comes from advertising displayed before his videos, with the remainder earned from sponsored posts.
According to Australia's 9 News, Ryan's parents are putting 15 per cent of his earnings away into a bank account until he's an adult.
Second on the list of top YouTube earners is former Disney Star, Jake Paul, who raked in $31.1 million.
Meanwhile his brother, Logan Paul who received global backlash from a video last year, dropped to 10th place in the rankings.
On a trip to Japan, Paul showed the body of an apparent suicide victim in one of his videos. After the incident, the YouTuber kept relatively quiet on social media before a comeback confirmed he showed barely any remorse.
Yet he still earned almost $21.2m, $3 million more than in 2017.
READ MORE: • How YouTube star Logan Paul lost everything
• Logan Paul laughs off his 'haters' in new YouTube video
Last year's top earner, Minecraft gamer Daniel Middleton, slipped to fourth place in 2018 with $23.8m.