Hollywood star Chris Hemsworth is making his online fitness programme Centrfit available for free for the next six weeks.

The Australian actor and fitness enthusiast – whose role as Thor in the Marvel blockbusters has made him one of the highest-paid actors in the world – announced the move on his Instagram account.

"During this period of self-isolation and uncertainty, I am offering six weeks of my health and fitness programme Centrfit for FREE!," he said.

"Go to centr.com and sign-up. Centr was founded to make health and happiness accessible to all, and I hope that this will make that access even easier during the current global health crisis.

"I think now more than ever is when we need to focus on what I believe to be the three key pillars to living healthier and happier – movement, nutrition, and mental fitness.

"In recent weeks Centr has seen a groundswell of support from our customers and communities, with thousands of members around the world coming together and sharing how the program has brought them positivity and support during these difficult times."