How old is Lincoln Markham?

Lincoln Markham was born on 3 January 2006.
Lincoln Markham is 20 years old.

How old is Lincoln Markham in days now?

Lincoln Markham is 20 years 4 months 17 days old.
Total 7,442 days old now.

When is the next birthday of Lincoln Markham?

Lincoln Markham's next birthday is in 7 months 14 days.

What is the zodiac sign of Lincoln Markham?

Zodiac sign of Lincoln Markham is Capricorn.

A charming YouTuber and social media personality Lincoln Markham is famous for his role on the popular YouTube channel What’s Inside?. Born in 2006 in Arizona, Markham is the son of successful content creator and inventor Daniel Markham. The channel was born directly out of Lincoln’s curiosity and creativity. He’d always been asking “What’s inside?” a million times since he was a little kid.

In 2014, the father-son duo behind What’s Inside? channel started the trend of turning everyday objects into fascinating experiments by slicing them open to see what’s inside. Lincoln quickly became a familiar and integral part of the channel, helping to establish its family-friendly and educational approach. They use all sorts of things in their content, from household items to weird and unexpected things.

By the end of 2025, the channel had accumulated over 6.5 million subscribers and had been nominated for a number of awards. Their video titled What’s Inside a Rattlesnake Rattle is one of their most popular, with over 80 million views, demonstrating the channel’s lasting appeal and worldwide reach.