The singer said he wants to quit the group before he starts feeling too old.
"I'm 31 now and I don't think bands should keep going past 33," BANG Showbiz quotes him as saying.
"So we're trying to pack in as much as possible. Up until the end of next year, we'll just go for it in every sense. I don't believe in time off.
"We've still got our own hair, we can still fit into our musical trousers and we've got to make the most of that."
The band's last album Viva La Vida went to number one in 36 countries and sold 720,000 copies in its first week of release in the US.
> Chris Martin: 'Coldplay are not the best'