Samuist

Gyms & Fitness in Koh Samui

10 listings · Rated and reviewed

At Koh Samui gyms, a day pass costs ฿250–฿400 and a month ฿1,699–฿2,600; a week at a fitness retreat starts at ฿8,500 (checked September 2026). Compare prices at 7 gyms and retreats

All AreasChawengChaweng NoiLamaiBophut & Fisherman's VillageMaenamBang PoNathonLipa NoiTaling NgamHua ThanonChoeng MonBig Buddha & Plai LaemBang RakLaem Set & Laem SorChaweng Lake & Inland
Legend X Fitness in 15, 27 beach road, Bo Put, Ko Samui District, Surat Thani 84320, Thailand

Legend X Fitness

9.9/10(738 reviews)

Bang Rak

Prices: ฿300 a day, ฿1,699 a month

Legend X Fitness is a 24-hour beachfront gym in Bang Rak with modern equipment, showers, and sea views. Reviewers praise the friendly staff, clean space, air...

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Star Gym in 14, 102 Chaweng Beach Rd, Bo Put, Koh Samui, Surat Thani 84320, Thailand

Star Gym

9.4/10(701 reviews)

Chaweng

Prices: ฿250 a day, ฿1,800 a month

Star Gym is a Chaweng gym with modern, well-kept equipment, open-air ventilation, friendly staff, towels and lockers, and Muay Thai training. It’s open daily...

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Elite Gym and Fitness Exclusive in 202, Chaweng Beach Rd, Surat Thani 84320, Thailand

Elite Gym and Fitness Exclusive

9.3/10(678 reviews)

Chaweng

Prices: ฿350 a day, ฿2,600 a month

A Chaweng gym, sports complex, and yoga studio with daily 6:30 AM–10 PM hours, strong air conditioning, and lots of equipment. Reviewers praise the friendly...

gymchawengday-pass
Legacy Muscle Universe in H38M+99H, Tambon Bo Put, Ko Samui District, Surat Thani 84320, Thailand

Legacy Muscle Universe

9.7/10(638 reviews)

Choeng Mon

Prices: ฿400 a day, ฿2,600 a month

Legacy Muscle Universe is a bodybuilding-focused gym, fitness center, spa, sports club, sports complex, and yoga studio in Choeng Mon. It’s open daily from 6...

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Koh Fit in 79/30 M.6, Koh Samui, Surat Thani 84310, Thailand

Koh Fit

9.0/10(602 reviews)

Lamai

Prices: From ฿16,133 a week

Koh Fit is a Lamai fitness center and Muay Thai gym aimed at people booking a training stay or serious workout schedule. It opens daily from 6:30 AM, with...

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FITKOH in 32/8, Moo 5, Bantai, Mae Nam, Surat Thani 84330, Thailand

FITKOH

9.6/10(439 reviews)

Bang Po

Prices: From ฿8,500 a week

FITKOH is a Bang Po fitness camp with Muay Thai, gym training, yoga, recovery, and body transformation programs. It’s open Monday to Saturday, wheelchair...

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Success Gym in Bo Put, Ko Samui District, Surat Thani 84320, Thailand

Success Gym

8.6/10(349 reviews)

Chaweng

Large Chaweng gym with weights, cardio, squat racks, stretching space, boxing area, sauna, towels, and free water. Open daily 6 AM–9 PM. Reviewers say day...

gymweightscardio
Lamai Fitness Retreat in 136/74 Moo 4 Had Lamai Rd, Ko Samui District, 84310, Thailand

Lamai Fitness Retreat

9.6/10(321 reviews)

Lamai

Prices: From ฿17,000 a week

Lamai Fitness Retreat in Lamai is a gym, Muay Thai boxing gym, yoga retreat center, and weight-loss program all in one. It suits solo travelers and anyone...

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Ultra Bodies Gym in 139 / 48-49 Moo 4 Thambon Maret Lamai Thambon Maret Lamai, Maret, Surat Thani 84310, Thailand

Ultra Bodies Gym

8.8/10(307 reviews)

Lamai

Compact Lamai gym with air conditioning, machines, free weights, showers, and free street parking. Open daily 7 AM–9 PM, but it gets crowded at peak times and...

gymlamaiair-conditioned
Outdoor Gym in F3C4+4R, Koh Samui, Ko Samui District, Surat Thani, Thailand

Outdoor Gym

9.4/10(242 reviews)

Lamai

Outdoor Gym in Lamai is a no-frills outdoor gym with a strong local following, beachfront atmosphere, and a donation-based setup. It suits people who care more...

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How much does a gym cost on Koh Samui?

Walk-in prices at 4 gyms, cheapest monthly membership first. Tap a gym for its full price list, classes and personal training.

GymDayWeek10 visitsMonth3 monthsYearResidents, month
Legend X FitnessBang Rak฿300฿800–฿1,699฿4,500฿9,990–
Star GymChaweng฿250฿1,200฿1,400฿1,800฿4,500฿13,200฿1,500
Elite Gym and Fitness ExclusiveChaweng฿350฿1,500฿1,900฿2,600฿6,000฿15,800฿2,000
Legacy Muscle UniverseChoeng Mon฿400฿1,800฿2,200฿2,600–––

What does a fitness retreat cost on Koh Samui?

Retreats sell training programmes by the week, often with meals and a room. Each programme's shortest stay; longer stays and what's included are on each retreat's page.

ProgrammeShortest stayWithout roomWith room
FITKOHMuay Thai Standard1 week฿8,500–
Fitness Standard1 week฿12,500–
Muay Thai Premium1 week฿13,500–
Weight Loss Standard1 week฿14,000–
Fitness Premium1 week฿17,500–
Weight Loss Premium1 week฿19,600–
Koh FitTotal Fitness Retreat1 week฿16,133฿22,365
Muay Thai & Strength & Conditioning Retreat in Koh Samui1 week–฿22,150
Weight Loss Retreat2 weeks฿42,423฿54,443
VIP Transformation4 weeks฿112,359฿141,960
Lamai Fitness RetreatMuay Thai & Hyrox1 week–฿17,000
Complete Fitness Retreat1 week–฿17,000
Weight Loss Transformation1 week–฿26,000
VIP Body Transformation1 week–฿35,200
VIP Over 50s1 week–฿46,500

"With room" only where the website says the price includes accommodation. Some retreats add VAT and a service charge on top.

From each gym's own website, checked September 2026. Prices change, so confirm before you pay.