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HIIT workouts in New Jersey

Made for those who structure their day around high-intensity intervals and push their physical limits.

Based on 715 Opinions
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Updated April 2026
01
GeneWorks Fitness/The Bodyweight Bootcamp image 1
GeneWorks Fitness/The Bodyweight Bootcamp image 2
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Classes deliver a full body workout mixing cardio, strength, and endurance. Workouts are intense yet beginner friendly, with a supportive atmosphere that motivates all levels. Clean space and friendly group make every session feel welcoming and energizing.

Classes offer an intense workout that feels both planned out and beginner friendly. Sessions are versatile and interactive, leaving you energized and accomplished.

People are saying

"Gene's HIIT class was fun, engaging, and super motivating."

"Gene's fun activities made me feel like family and pushed me."

"Gene's Bootcamp Classes are motivating and challenging, helping you recover and achieve goals."

Good to know

1

Classes are suitable for all fitness levels, from beginners to enthusiasts.

2

The class format varies daily, alternating between cardio, endurance, and strength.

3

Expect a full body workout in each one-hour session.

02
Juniper Yoga + Fitness image 1

Spacious studios offer a calm vibe with a welcoming community for all yoga levels. Hot HIIT classes feature great music and motivating instructors who guide you through intense workouts. Facilities include showers and a cold plunge to refresh after sessions.

Hot HIIT classes work every muscle and make you sweat with great music and a detoxing effect. Instructors stay motivating and qualified across HIIT, Pilates, and yoga variations.

People are saying

"The Yoga Spot's instructors really pay attention and give great advice for form."

"The HIIT classes here are challenging and motivating."

"It's a peaceful, calm studio that feels like a haven."

Good to know

1

There is parking available at the studio.

2

The studio was clean and updated.

3

The instructors are great and provide excellent guidance.

03
X-hale Hot Yoga Studio image 1

Large studio stays at 105Β°F heat for intense workouts. Hot HIIT Pilates classes led by Elise, Nicole, and Valerie keep energy high and fun. Vibrant community and dynamic playlists make sessions both challenging and supportive.

Classes combine Hot HIIT Pilates with energetic moves that keep intensity high. Instructors like Elise, Nicole, and Valerie lead sessions that are both challenging and fun.

People are saying

"The HIIT classes here are challenging and always different."

"The instructors at this hot yoga studio are warm, knowledgeable, and motivating."

"Val's Thursday Pilates class was so fun and a great workout."

Good to know

1

Bring a towel and water, as classes can be intense and sweaty.

2

The studio offers a variety of classes, including Hot HIIT Pilates and yoga.

3

Classes are suitable for all levels, from beginners to advanced yogis.

04
Char Fitness Club image 1
Fitness center

Fitness center offers small group classes with a welcoming vibe and personal coaching. Workouts blend strength training and HIIT for intense, varied sessions. Coaches tailor moves for all levels, making it great for community-driven fitness.

Classes combine strength training and HIIT for a ferocious workout. Over 20 sessions show a consistent focus on this intense style.

People are saying

"This weight lifting gym's trainers push you safely and correct your form."

"The trainers here are amazing and always correct your form."

"The HIIT instructors really help you modify exercises for any injuries."

Good to know

1

Char Fitness Club offers 8am classes for those who work from home.

2

Class sizes are small, typically 8-10 people, allowing for personalized attention.

3

Workouts can be modified for any fitness level, making them accessible to everyone.

05
NJ HIIT Fitness image 1
Physical fitness program

Fitness program offers intense training with hands-on firefighting skills. HIIT sessions include a maze crawl and ladder climb that mimic state tests. Atmosphere stays supportive and motivating throughout.

Training includes a firefighter PPT that mirrors the state test with a maze crawl, obstacle course, and ladder climb. The environment stays supportive and motivating throughout high-intensity sessions.

People are saying

"This gym's firefighter physical fitness test prep course is intentionally harder than the real test."

"The HIIT community here is so warm and motivating."

"It's so kid friendly, they're already asking to come back!"

Good to know

1

The gym offers specialized training programs for aspiring firefighters.

2

Community events include sneaker drives and support for the homeless.

3

Members receive hands-on training for the firefighting physical test.

06
Revive HIIT Factory image 1

Small gym space features modern equipment and daily workouts blending strength, cardio, and functional training. High-energy HIIT sessions led by top-notch coaches create an uplifting, motivating atmosphere. Staff support and a strong community make every visit encouraging and clean.

High-energy workouts combine with top-notch coaches who push you just right. The space offers an uplifting environment with a strong sense of community and motivation that drives serious results.

People are saying

"The coaches at this gym are supportive and push you to your best."

"The HIIT coaches here are so supportive and motivating."

"The community here makes it a truly supportive and welcoming place."

Good to know

1

Membership costs are higher than average, so budget accordingly.

2

The gym offers a variety of classes, including HIIT and strength training.

3

Friday night classes are particularly popular and vary each week.

07
Basecamp Fitness Edgewater image 1

Gym has a supportive community that fuels personal growth. HIIT classes are 35 to 45 minutes with motivating trainers leading each session. Upbeat music and varied workouts keep energy high and workouts fresh.

Classes last 35 to 45 minutes, fitting well into busy schedules. Coaches lead highly effective HIIT workouts with unique, motivating trainers guiding every session.

People are saying

"This gym feels like a supportive family, not just a place to work out."

"The coaches here make HIIT workouts awesome and motivating."

"I felt so welcomed and comfortable from the very first day."

Good to know

1

Classes are 35 to 45 minutes long, perfect for busy schedules.

2

The gym offers a variety of HIIT workouts every day.

3

Parking is plentiful and easily accessible for members.

08
Evolution Fitness image 1
Fitness center

Fitness center feels like a nightclub with bright lighting and loud music. Cardio Kickboxing HIIT offers fast and fierce workouts with nonstop motion. Spacious, clean space builds a strong community vibe that keeps energy high.

Cardio Kickboxing HIIT classes bring nonstop motion with lights and beats, making workouts fast and fierce. Total Burn HIIT sessions deliver intense calorie burn, while HIIT Fat Blaster gets the heart racing with high energy.

People are saying

"This is the best weight lifting gym I've ever attended."

"The cycling gym's energy felt like a concert, leaving me feeling accomplished."

"This HIIT class was fast, sweaty, and ridiculously fun."

Good to know

1

Free parking is available for gym members.

2

The gym offers a variety of classes, including HIIT and Zumba.

3

Expect a clean environment with well-maintained equipment.

09
Burn Paramus image 1

Gym offers natural light and a close-knit community. HIIT classes bring intense workouts with high energy and personal support. Trainers keep sessions motivating and focused on endurance and strength.

Classes deliver intense workouts with a strong sense of energy and community. Sessions focus on rewarding HIIT training that challenges endurance and strength.

People are saying

"The trainers make this weight lifting gym fun and creative."

"This gym transformed my body and helped me gain strength."

"The coaches challenge and educate you during HIIT."

Good to know

1

Classes at Burn Paramus are small, ensuring personalized attention from trainers.

2

The gym has a supportive community that encourages members during workouts.

3

Drop-in sessions are available for those wanting to try a class before committing.

10
Alpha Fit Club image 1

Large gym offers modern equipment and a spacious recovery room with massage chairs. HIIT classes blend cardio, agility, and strength for a full workout. Supportive community creates an electric energy that motivates everyone.

Classes combine cardio, HIIT, and weightlifting in one session. Studio style workouts mix HIIT with agility and strength training.

People are saying

"The weight lifting gym workouts are thoughtfully designed and challenging."

"The gym staff are super friendly and supportive."

"These HIIT workouts are intense but leave you feeling awesome."

Good to know

1

Abundant parking is available, making it easy to access the gym.

2

The facility is clean and well-maintained, providing a pleasant workout environment.

3

The gym offers a variety of workouts suitable for all fitness levels.

11
SWEAT440 Fitness Toms River image 1

Gym offers flexible scheduling with classes every 10 minutes and a clean, modern facility. Circuit-style HIIT workouts last 40 minutes, featuring equipment and weights for high energy sessions. Upbeat music and engaging coaches keep workouts fun and motivating.

Circuit-style workouts run on a tight 40-minute schedule with equipment and weights. The gym keeps a strong energy level and offers frequent sessions to jump into anytime.

People are saying

"The gym's coaches are amazing and push you to reach your potential."

"The workouts are challenging and fun, different every time."

"It's so convenient to pop in for a 40-minute HIIT class anytime."

Good to know

1

Classes start every 10 minutes, allowing flexibility to join at different times.

2

Workouts last only 40 minutes, making it easy to fit into a busy schedule.

3

The facility is very clean and well-maintained with new equipment.

12
The Burn Nutley image 1
Pilates studio

Studio blends hot room Pilates with a lively social vibe and Latin beats. Heated HIIT classes led by expert instructors offer intense workouts in a challenging environment. Modern space and a refreshing drink bar boost the overall wellness experience.

Heated HIIT classes combine intense workouts with a challenging hot environment. Instructors like Danielle lead sessions that push limits, while owners check in and offer hydration support after class.

People are saying

"I found this to be the greatest Pilates Studio I've ever been to."

"The staff here are amazing and thoughtful."

"Danielle's heated HIIT classes are instantly hooking and always challenging."

Good to know

1

Classes at The Burn Nutley fill up quickly, so book early.

2

A drop-in class costs $32, higher than most local studios.

3

Class packages expire, so use them before the deadline.

13
Drop Fitness image 1

Small gym offers luxury amenities like sauna and cold plunge, creating a tranquil atmosphere for all fitness levels. HIIT classes combine weight training with focus on safe progression and form. Modern equipment supports a strong, effective workout experience.

Classes blend HIIT and weight training with strong focus on form and safe progression. Instruction pushes participants effectively toward fitness goals.

People are saying

"The gym staff here is so friendly and helpful."

"I felt I needed more instruction from Lisa during Yoga Spot classes."

"The HIIT trainers bring unmatched energy and motivation to every class."

Good to know

1

Drop Fitness offers a variety of classes including barre, Pilates, and HIIT.

2

Classes at Drop Fitness run throughout the day for flexible scheduling.

3

Parking at Drop Fitness is ample and convenient for visitors.

14
Impact Hoboken - Willow image 1

Fitness center offers HIIT classes like Mia's energetic Wednesday session and barre workouts that suit all levels. Music keeps energy high, while instructors create a fun atmosphere with a strong community feel.

Classes include HIIT, barre, sculpt, and yoga. Mia’s Wednesday morning HIIT class stands out for its energy and structure.

People are saying

"The instructors at Barre Class are so encouraging and offer helpful adjustments."

"The HIIT instructors are so encouraging and offer hands-on adjustments."

Good to know

1

A wide range of classes includes barre, sculpt, and HIIT.

2

Classes are open to both beginner and experienced students.

3

Each instructor has a unique teaching style.

15
Crunch Fitness - East Brunswick image 1

Gym offers newer machines and a large group fitness room with natural light. HIIT classes led by top trainers provide challenging cardio and varied workouts. Friendly vibe welcomes all ages, plus amenities like hydro massage enhance recovery.

Classes led by Carolyn, Derek, Linda, Michelle, and Daisy focus on challenging cardio and varied HIIT workouts. Options include Spin and Yoga alongside HIIT, with daily group classes offering plenty of variety.

People are saying

"The energy in these gym classes is amazing and contagious."

"The staff at this weight lifting gym are so kind and helpful."

"Carolyn's HIIT classes were so enjoyable and energetic."

Good to know

1

Free pop-up classes are offered to thank members for their support.

2

The gym features a variety of fun classes, including dance and specialty workouts.

3

Spin classes led by Joe Diaz are highly praised.

16
Lift & Glitz Training Studio image 1

Boutique gym offers infrared sauna and a women-only community that motivates and empowers. HIIT classes led by Ashley mix strength and cardio for total body fitness. Monthly class changes keep workouts fresh and instructors stay uplifting.

Classes include total body, lower body, and upper body workouts alongside HIIT. Instructors like Ashley lead sessions that blend strength training with cardio-focused HIIT.

People are saying

"This weight lifting gym is a welcoming, empowering space for women."

"The workouts here are fun, challenging, and motivating."

"The HIIT coaches are amazing and really care about your goals."

Good to know

1

You could take a free trial class with no commitment.

2

The gym offers flexible class times that fit into busy schedules.

3

The classes are designed for women of all fitness levels.

17
Landmark Athletics and Fitness image 1

Spacious fitness center offers massive turf area perfect for HIIT workouts like P24 and power strength. Classes range from intense HIIT to calming yoga, all under one membership. Friendly trainers and upbeat music create a motivating atmosphere for all fitness levels.

Turf workouts like P24, power strength & burn, and HIIT stand out here. Classes cover a wide range from intense HIIT to restorative yoga, all included in one membership.

People are saying

"The trainers here are so passionate and knowledgeable."

"This weight lifting gym has such a supportive and connected community."

"I loved trying new HIIT classes and the variety they offered."

Good to know

1

Classes are available from 5am to 9pm, accommodating various schedules.

2

The gym offers themed classes and pop-up events throughout the year.

3

Expect a variety of classes including boot camp, yoga, and cycling.

18
Project Trnsfrm - NJ’s Premier Personal Fitness Center image 1

Facility blends modern luxury with top gear in a clean space. Weekend classes offer intense HIIT workouts that boost endurance and strength. Coaches keep energy high with upbeat music, creating a supportive community that motivates personal growth.

Weekend classes focus on intense HIIT workouts that challenge endurance and strength. Equipment supports a mix of bootcamp, boxing, and personal training styles.

People are saying

"This weight lifting gym feels like family; everyone is so welcoming."

"The workouts here are engaging, challenging, and super fun."

"The HIIT instructors bring infectious energy and make workouts fun."

Good to know

1

The gym offers a free trial class for new members.

2

Facilities are clean and well-maintained with modern equipment.

3

Group workouts are available for all fitness levels.

19
Crunch Fitness - Woodbridge image 1

Spacious gym features multiple deadlift platforms and a judge-free vibe. Jay's HIIT classes are challenging and fun, while Lulu's sessions keep energy high. Loud music after 6 PM fuels motivation in a clean, focused space.

Jay's HIIT classes offer a very challenging and fun group workout experience. Lulu also leads engaging sessions on Tuesdays, keeping the energy high throughout.

People are saying

"This weight lifting gym has all the equipment needed for a solid workout."

"The trainers at this gym are knowledgeable and motivating."

"Jay's HIIT classes are fun and push you to your limits."

Good to know

1

The gym closes at 5pm on weekends.

2

A yearly $65 maintenance fee is charged, regardless of equipment issues.

3

Many machines are often broken, affecting workout options.

20
Crunch Fitness - South Marlboro image 1

Spacious gym features new weights and machines arranged for flow. Energetic HIIT classes led by Lulu mix laughter with tough challenges at 6:30 PM. Fun music keeps energy high, creating a welcoming community vibe with many children around.

Lulu leads energetic HIIT classes that mix laughter with tough challenges, making workouts fly by. Classes at 6:30 PM fit well into many schedules, and instructors like Dee also run solid sessions.

People are saying

"Jeff, the trainer at the gym, was so encouraging and challenging."

"The instructors here bring amazing energy to make the fun activities motivating."

"Lulu's HIIT classes fly by with laughter and extreme challenges."

Good to know

1

The gym offers 24-hour access for members.

2

The locker room is always clean and well-maintained.

3

Expect a variety of classes with different levels of difficulty.

21
Crunch Fitness - Green Brook image 1

Spacious gym spans two floors with wide range of machines and a renovated steam room for meditation. HIIT classes led by Jay run thrice weekly, mixing in Zumba sessions for variety. Friendly staff and childcare services create a cozy, lively atmosphere supporting diverse workouts.

Multiple HIIT classes run on Monday, Tuesday, and Thursday with strong attendance. Classes led by Jay and combined sessions with Zumba add variety to the schedule.

People are saying

"The weight lifting gym here is super clean and well maintained."

"My personal training sessions with Sammy pushed me to realize my strength."

"My trainer Sammy really encouraged me to challenge myself during HIIT."

Good to know

1

The gym is very clean and well-maintained.

2

There are plenty of machines available for workouts.

3

Parking can be challenging in the evening due to crowds.

22
Fitness By The Sea image 1

Bright gym space offers a supportive community with a family feel. HIIT classes include 30+30 minute sessions with injury modifications and range from CrossFit to cardio and strength training. Variety and motivation keep all fitness levels engaged.

Classes include 30+30 minute HIIT sessions that allow exercise modifications for injuries while still delivering a strong workout. Options range from CrossFit routines to cardio-intensive and strength training classes, including a 60-minute Flex class.

People are saying

"The coaches and members at this gym are so welcoming and supportive."

"The HIIT coaches here are fantastic and create a welcoming family atmosphere."

"Joining this place was the best decision I ever made."

Good to know

1

The gym hosts a social event once a month for members to connect.

2

Members can participate in various outside activities planned throughout the year.

3

Fitness By The Sea fosters a welcoming and inclusive community atmosphere.

23
Crunch Fitness - Springfield image 1

Gym features a spacious layout with modern gear and a turf area. HIIT classes led by Mack or Angelys deliver solid workouts, though sessions start late. Loud, energetic vibe with music and speakers keeps energy high.

Classes led by Mack or Angelys offer solid HIIT workouts. The HIIT zone supports free-form sessions, but class start times tend to run late.

People are saying

"The staff at this gym are super friendly and always ready to greet you."

"My personal training sessions were tailored to my needs and goals."

"The HIIT zone is great for more free-form workouts."

Good to know

1

The gym advertises opening at 5 AM but has had late openings frequently.

2

Expect crowded conditions during peak hours, especially in the evenings.

3

The gym closes at 9 PM on Fridays instead of the advertised 10 PM.

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