If you’re trying to maintain a healthy lifestyle but are struggling to fit workouts into your daily routine, you’re not alone. It can sometimes feel impossible to squeeze in a workout and still sleep, eat, and get work done every day.

The good news is that you don’t have to exercise for hours on end to get in an effective workout. Here are some quick, sweat-inducing workouts to try the next time you’re feeling pressed for time.

• HIIT
  HIIT (high-intensity interval training) is all the rage these days. Instead of spending thirty minutes to an hour working out, HIIT allows you to complete workouts in a fraction of that time. There are plenty of HIIT workouts available on sites like YouTube, Instagram, and the like that only take about fifteen minutes to complete.

• Nike Training Club
  The Nike Training Club app is just one of many free fitness apps, but it’s one of the best if you’re looking for time-effective workouts. On the app, you can search for workouts targeting different body parts or that last for different amounts of time. If you have a busy day but want to get an ab workout in, try the five-minute plank finisher. Save the thirty-minute workout options for days when you have a little more time to spare.

• Transform :20
  Don’t dismiss this workout as an easy step-aerobics session. Fitness professional Shaun T is famous for his various DVD workout programs, from Insanity to Hip Hop Abs. Transform :20 workouts are high intensity and only last twenty minutes, but you’ll get the same benefits that you would from most hour-long workouts. You’ll feel incredibly strong and productive when you start this exercise program.

• Darebee
  Darebee offers a seemingly endless supply of printable online workouts. There is a new workout of the day posted each day, and it has a collection of workouts that target different sections of the body. The workouts note the skill level necessary for completing them so that you can choose the best options for your experience—whether you’re a beginner or a seasoned fitness enthusiast. If it’s a busy day, choose an option that you’ll only need to do for a couple of rounds. The exercises will get you sweating and help tone your body without having to spend hours on the treadmill every week.