25 Fat-Burning Flat Belly Workouts to Burn Calories Fast [2025]
The truth is, spot-reducing fat isn’t real, but building lean muscle and incorporating cardio-heavy ab workouts is your golden ticket. These 25 exercises combine core strengthening, full-body activation, and high-intensity movement to help you shed fat, strengthen your stomach, and boost metabolism.
From no-equipment home workouts to dynamic gym moves, you’ll find something that fits your level and schedule. Ready to feel the burn? Let’s dive in!
1. High Knees
Nothing wakes up the core like high knees. It’s a powerful, explosive movement that doubles as cardio and ab training. This move ramps up your heart rate quickly, making it perfect for HIIT (high-intensity interval training) or warm-ups. Drive your knees toward your chest as fast as you can while maintaining good posture. You’ll feel your lower abs engage, and the sweat will start rolling. Best part? You can do it anywhere — your living room, driveway, or even during a commercial break.

2. Bicycle Crunches
An oldie but a goldie, bicycle crunches are one of the most effective ab moves, according to ACE (American Council on Exercise) studies. They work your upper abs, lower abs, and obliques all in one seamless motion. Plus, the twisting motion engages your waistline, helping with that hourglass definition. Want to level up? Slow down the tempo to increase time under tension — your core will be crying (in a good way).

3. Burpees
Oh, burpees. Love them or hate them, they work. Burpees are a total-body calorie torcher that hits your core hard while revving up your cardiovascular system. This explosive movement is great for melting belly fat because it keeps your body moving — and guessing. Plus, adding a push-up or a tuck jump variation intensifies the burn even more.

4. Mountain Climbers
Think of mountain climbers as planks on fast-forward. This fast-paced move is killer for torching calories and tightening your abs. As you drive your knees in and out, your transverse abdominis (deep core muscles) stay engaged the whole time. The continuous movement makes it an excellent fat-burning cardio option too. Bonus: It’s low-impact on joints but high-impact on your core.

5. Russian Twists
Want that chiseled waistline? Russian twists are your go-to. This rotational move targets the obliques, helping trim side belly fat and define your midsection. Sit on the floor, lean back slightly, and twist from side to side — either bodyweight or with a dumbbell for resistance. Slow and controlled beats fast and sloppy every time.

6. Plank Jacks
Combine a plank hold with cardio? Yes, please. Plank jacks are a smart way to keep your core under tension while increasing your heart rate. Think of them as jumping jacks in a forearm plank. They’re sneaky — they look simple but after 30 seconds, you’ll feel the fire in your abs.

7. Jump Squats
Jump squats aren’t technically an ab move, but they’re a fat-burning powerhouse. By activating your glutes, legs, and core, jump squats get your whole body involved. The explosive movement burns serious calories, which helps reduce overall body fat — including around your belly. Plus, they add intensity to your usual leg day.

8. V-Ups
For a more advanced core move, V-ups are tough but super rewarding. You lie flat and simultaneously lift your legs and upper body, forming a “V” shape. It sounds easy until you try it. The challenge lies in engaging both upper and lower abs together. Try adding these to the end of a workout to really finish off your core.

9. Jumping Rope
It’s not just for kids! Jumping rope is a killer fat burner and incredibly underrated for core training. It works your abs as you maintain posture and balance, plus it’s one of the best portable cardio workouts you can do. Just 10 minutes of intense jump rope can torch over 100 calories. Simple, nostalgic, and super effective.

10. Flutter Kicks
Don’t let their simplicity fool you — flutter kicks are a lower belly destroyer. By keeping your legs extended and low to the ground, your hip flexors and core stay fully engaged. They look gentle, but just 30 seconds in, you’ll be gasping. Add them between strength sets for a core bonus.

11. Skater Hops
Skater hops combine lateral movement with core control. They mimic the movement of speed skaters and engage the entire lower body while keeping your abs tight. They’re also great for agility and balance, which burns more calories and adds a coordination challenge. Keep your movements light but controlled for best results.

12. Side Plank with Hip Dips
This side plank variation is perfect for targeting the side core (obliques) while improving spinal stability. Dip your hips down and back up in a slow, controlled motion. It adds a dynamic layer to the isometric side plank, keeping your muscles active the entire time. A must for any core-sculpting plan.

13. Reverse Crunches
Reverse crunches are one of the few exercises that isolate the lower abs effectively. Instead of curling your upper body up, you raise your hips off the floor toward your chest. It’s a gentler move for people who feel strain in their neck during traditional crunches. Controlled movements = deeper burn.

14. Toe Touches
This simple move doesn’t need fancy equipment but still delivers strong results. Toe touches are perfect for upper ab activation, especially when done slowly. Lying flat, lift your legs up and reach for your toes with a crunching motion. Feel that? That’s your core saying “hello!”

15. Jumping Lunges
Get your legs and core fired up at the same time with jumping lunges. The explosive movement keeps your heart rate up while requiring serious balance and coordination. That means more core activation and fat burning. Also amazing for glutes and thighs — hello, full-body tone.

16. Plank to Push-Up
This move is a hybrid between strength and endurance training. Starting in a forearm plank, push up into a full plank and then back down. Not only does it torch your arms and shoulders, but your core has to stabilize every second. Perfect for improving posture and flat-belly control.

17. Hollow Body Hold
Looks easy. Isn’t. This isometric core move forces your deep core muscles to activate and hold your body in place. Your lower back stays flat against the mat while you hover your arms and legs off the ground. One of the best core-building moves ever. Period.

18. Kettlebell Swings
Functional, powerful, and super effective — kettlebell swings are full-body fat melters.
The hip hinge activates the glutes, hamstrings, and core, while the momentum creates a fat-burning cardio effect. Just make sure your form is on point — it makes all the difference. Not just for CrossFitters anymore!

19. Standing Oblique Crunches
Easy on the joints, big on results. Standing oblique crunches help strengthen the waist and lower back while avoiding pressure on the spine. Perfect for beginners or as a cool-down exercise. And yes, they totally count toward ab day!

20. Spider Climbers
Similar to mountain climbers, but with a twist — literally. Instead of driving your knees straight forward, you bring them toward the elbow, engaging the obliques and hip flexors more intensely. This cardio-core move keeps you in motion while working those hard-to-hit angles.

21. Bear Crawl
Don’t underestimate this primal movement. The bear crawl challenges your entire core, shoulders, and coordination. Crawling forces your core to brace constantly, which leads to serious abdominal strength gains over time. Also, kind of fun (and humbling).

22. Tuck Jumps
High-impact but high-reward. Tuck jumps raise your knees to your chest in a fast burst, torching calories and engaging your core like crazy. You don’t need many reps to feel the effects — 10 reps are enough to spike your heart rate. Use sparingly to spice up your circuits.

23. Ab Rollouts
An advanced move that really targets the entire front core. Using a wheel or barbell, roll forward while keeping your abs braced. It’s super tough, but incredibly rewarding for building strength in the rectus abdominis. Be cautious if you’re new — form is everything here.

24. Lying Leg Raises
Lying leg raises are a classic lower ab move. Keep your legs straight and lift them slowly, resisting gravity on the way down. It’s easy to learn, yet effective for tightening the lower belly and improving core endurance. Start with bodyweight and add ankle weights for a challenge.

25. Standing Torso Twists
This one’s perfect for cool-downs or light activation. Torso twists help improve spinal mobility and engage the side abs and waistline. It’s a gentle move, but don’t underestimate its effectiveness for posture and core balance. Add a medicine ball to make it spicy.

Conclusion
There you have it — 25 dynamic, fat-burning workouts designed to sculpt your core, speed up metabolism, and help you reach your flat belly goals. Whether you’re working out at home, at the gym, or just squeezing in quick circuits throughout your week, these moves give you the flexibility and effectiveness you need.
Pro tip: Combine 5–7 of these exercises into a circuit, do each for 30 seconds to 1 minute, and rest between sets. Repeat 3–4 times. Boom — you’ve got a killer ab session!
Results won’t come overnight. But with consistency, clean eating, and a little determination, you’ll watch your body transform. You don’t need endless hours — just the right exercises and real effort.
So, what are you waiting for? Pick your favorites, get moving, and start your flat belly journey today!