There are busy days when making it to the gym is just not in the cards with everything else on your to-do list. But just because your schedule is jam-packed doesn’t mean you can’t squeeze in a quick, effective workout from the comfort of your own home. How quick are we talking? Just 15 minutes of exercise per day can have a positive impact on your health — from to to a .

Since consistency is key when it comes to reaping the benefits of exercise, shorter workouts are a great tool to have in your arsenal. They are easier to commit to than those hour-long sessions that require you to leave home and head to the gym. And whether you're in the mood for or , we've rounded up 13 free workouts you can do in just 15 minutes, with little to no equipment needed.

If it’s been a minute since you’ve worked out, this will remind you how much fun it can be. Burn calories and get your heart rate up with easy-to-follow moves that even the most novice of fitness levels can master. Build core and shoulder strength with that only requires a set of hand weights (or even water bottles).

No space or equipment? No problem. can be done with minimal space and will leave you feeling sweaty and satisfied. Dust off that and get ready to work your upper and lower body with this quick .

Use your stairs, a step stool or any elevated surface as a step to take on . You'll do 20-second intervals of cardio and short, 10-second periods of rest to really elevate your heartrate. If you have a few extra min.