The site, which launches this Saturday January 5, has been developed with the team behind the Saturday health section Body and Soul, and will contain content from the supplement.
Members will be able to record any exercise, from triathlon training to sex, and calculate the calories burnt. They will also be able to set goals and recruit personal motivators (family and friends) who can follow their progress online.
Users can also join and form groups, update their own profile, swap tips and interact with other members for help and encouragement.
Nutritionist Amanda Ursell and fitness instructor Matt Roberts will provide online diet tips and exercise advice. Writers and columnists from The Times will also join the club and write about their experiences.
Katie Vanneck, sales and marketing director at Times Media, said: "January is traditionally the time of year when everyone resolves to lose weight, get fit and look good and yet the need for the UK adult population to shape up is greater than ever.
"We are launching The Times Health Club to help our readers achieve their health and fitness goals. The combination of the best nutritional and fitness advice and information and the interactive tools will really encourage them to persevere to reach their goals."
The Times will be running a series of promotions to support the launch, which include a free pedometer giveaway and the chance to win consultations with Roberts.