Whether a gym requires a 12-month contract or lets you pay month-to-month almost never shows up in a map listing — it's buried in the membership page or the fine print you sign at the desk. Every gym here has its no-contract, month-to-month option confirmed directly from the gym's own site or membership terms.
Denver 19
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VASA Fitness
1955 S Sheridan Blvd, Denver, CO 80227-3715
Mon-Fri 4am-12am, Sat 5am-8pm, Sun 6am-6pm
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Project 13 Gyms-Denver
1135 N Broadway, Denver, CO 80203-2123
Open 24 hours
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Momenta Fit
2865 S Colorado Blvd, Denver, CO 80222-6610
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EGYM Fitness Denver
1920 17th St, Denver, CO 80202-6401
Open 24 hours
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Train.Fight.Win.
921 W 9th Ave, Denver, CO 80204
Mon-Thu 4pm-8pm, Fri 4pm-7pm, Sat 9am-11am
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Zone Athletic Clubs - Denver
7150 Leetsdale Dr, Denver, CO 80224-1999
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Orangetheory Fitness
760 S Colorado Blvd, Denver, CO 80246-1900
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Commit Fitness – Gym & Personal Training | Wash Park Denver
2326 E Exposition Ave, Denver, CO 80209-4701
Mon-Thu 6am-7:30pm, Fri 6am-5:30pm, Sat 7am-12pm
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Commit Fitness – Personal Training & Gym in LoHi Denver
2902 Zuni St, Denver, CO 80211-3827
Mon-Thu 6am-7:30pm, Fri 6am-5:30pm, Sat 7am-12pm
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Orangetheory Fitness
381 S Broadway St, Denver, CO 80209-1522
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Orangetheory Fitness
3300 W 32nd Ave, Denver, CO 80211-3115
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RIGAR Performance
2240 S Delaware St, Denver, CO 80223-4138
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Denver Men's Hockey
2240 Buchtel Blvd, Denver, CO 80210-3447
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Denver Muay Thai
970 Yuma St, Denver, CO 80204-3836
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Orangetheory Fitness
200 Quebec St, Denver, CO 80230-6130
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Lions Den Strength Mobility Performance
5058 S Syracuse St, Denver, CO 80237-2839
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Orangetheory Fitness
5010 E Hampden Ave, Denver, CO 80222-7329
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Performance360 Denver
1943 S Broadway, Denver, CO 80210-4004
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The REBEL Workout
324 South Broadway, Denver, CO 80209
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VASA Fitness
3020 N Nevada Ave, Colorado Springs, CO 80907
Mon-Fri 4am-12am, Sat 5am-8pm, Sun 6am-6pm
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VASA Fitness
5885 Palmer Park Blvd, Colorado Springs, CO 80915-1611
Mon-Fri 4am-12pm, Sat 5am-8pm, Sun 7am-6pm
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VASA Fitness
455 E Cheyenne Mountain Blvd, Colorado Springs, CO 80906-4506
Mon-Fri 4am-12am, Sat 5am-8pm, Sun 6am-6pm
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Accolade Fitness
4390 Arrowswest Dr, Colorado Springs, CO 80907
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Accolade Fitness South
1785 S 8th St, Colorado Springs, CO 80905
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Colorado Iron Gym
3506 N El Paso St, Colorado Springs, CO 80907-5423
Open 24 hours
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NEXUS Community Fitness & Performance Training
1026 S Tejon St, Colorado Springs, CO 80903-4239
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Orangetheory Fitness
13492 Bass Pro Dr, Colorado Springs, CO 80921-3852
Mon-Fri 5am-7:45pm, Sat-Sun 7:30am-12:15pm
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Orangetheory Fitness
104 E Cheyenne Rd, Colorado Springs, CO 80906-2512
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Warrior Fitness Center
3711 Drennan Rd, Colorado Springs, CO 80910-3873
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Mountain Shadows Martial Arts
2015 Wickes Rd, Colorado Springs, CO 80919-4815
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Apex Animal House Gym
1350 Valley St, Colorado Springs, CO 80915
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CrossFit Bonnie and Clyde
706 Arrawanna St, Colorado Springs, CO 80909-5236
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Orangetheory Fitness
5990 Stetson Hills Blvd, Colorado Springs, CO 80923-3567
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Orangetheory Fitness
7469 N Academy Blvd, Colorado Springs, CO 80920-3204
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Burn Boot Camp
13375 Voyager Pkwy Ste 130, Colorado Springs, CO 80921
Aurora 7
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VASA Fitness
15200 E Colfax Ave, Aurora, CO 80011-6965
Mon-Fri 4am-12pm, Sat 5am-8pm, Sun 7am-6pm
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VASA Fitness
16921 E Quincy Ave, Aurora, CO 80015
Mon-Fri 4am-12am, Sat 5am-8pm, Sun 6am-6pm
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VASA Fitness
1200 S Ironton St, Aurora, CO 80012-7005
Mon-Fri 4am-12am, Sat 5am-8pm, Sun 7am-6pm
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STRIDE Fitness
6290 S Main St, Aurora, CO 80016-5379
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Orangetheory Fitness
4211 S Buckley Rd, Aurora, CO 80013-2947
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FLY kickbox
2501 Dallas St, Aurora, CO 80010-1034
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Orangetheory Fitness
24300 E Smoky Hill Rd, Aurora, CO 80016-1360
Boulder 6
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ONE Boulder Fitness
1800 Broadway St, Boulder, CO 80302
Mon-Thu 6am-8pm, Fri 6am-7pm, Sat-Sun 8am-4pm
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Lagroove
1657 28th St, Boulder, CO 80301
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Boulder Athletics
3240 Pearl St, Boulder, CO 80301-2418
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Orangetheory Fitness
1850 29th St, Boulder, CO 80301-1063
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Orangetheory Fitness
649A S Broadway, Boulder, CO 80303
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Mountains' Edge Fitness
2907 55th St, Boulder, CO 80301-2874
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VASA Fitness
8200 S Quebec St, Centennial, CO 80112-3194
Mon-Fri 4am-12am, Sat 5am-8pm, Sun 6am-6pm
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VASA Fitness
20153 E Smoky Hill Rd, Centennial, CO 80015-3123
Mon-Fri 4am-12am, Sat 5am-8pm, Sun 6am-6pm
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PilatesEvolution - SouthGlenn
7448 S University Blvd, Centennial, CO 80122-1688
Mon 5:30am-7:30pm, Tue 6am-7pm, Wed 5:30am-7:30pm, Thu 6am-7pm, Fri 5:30am-1pm, Sat 7:15am-11:15am, Sun 8:15am-12:15pm
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Movement Centennial
9657 E County Line Rd, Centennial, CO 80112-3502
Sat 8am-8pm, Sun 8am-6pm
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SOMA Performance & Fitness
7562 S University Blvd, Centennial, CO 80122-3159
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Mile High Crossfit
14104 E Davies Ave, Centennial, CO 80112-1946
Arvada 5
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Commit2Fitness
6510 Wadsworth Blvd, Arvada, CO 80003
Open 24 hours
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CrossFit Arvada
14700 W 66th Pl, Arvada, CO 80004-1066
Open 24 hours
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Orangetheory Fitness
8031 Wadsworth Blvd, Arvada, CO 80003-1625
Mon-Fri 5am-8pm
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Surge Kickboxing
6414 Ward Rd, Arvada, CO 80004-2461
Mon-Thu 6am-1pm, Fri 8am-12pm
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Orangetheory Fitness
14701 W 65th Way, Arvada, CO 80004-3508
Golden 5
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Movement Golden
700 Golden Ridge Rd, Golden, CO 80401-9524
Sat 8am-8pm, Sun 8am-6pm
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Genesee Mountain Fitness
25938 Genesee Trail Rd, Golden, CO 80401
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CrossFit Golden
720 Corporate Cir, Golden, CO 80401-5626
Sun 7am-3pm
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Armbrust Pro Gym
32 Skyline, Golden, CO 80403
Mon-Fri 5am-10pm, Sat 7am-8pm, Sun 7am-6pm
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Golden Jiu Jitsu
1224 Washington Ave, Golden, CO 80401-1201
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VASA Fitness
8055 W Bowles Ave, Littleton, CO 80123-3051
Mon-Fri 4am-12am, Sat 5am-8pm, Sun 6am-6pm
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N'Tense Fitness
3724 Norwood Dr, Littleton, CO 80125-9709
Mon-Fri 5:30am-6:15am, Sat 9am-10am
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Orangetheory Fitness
8555 W Belleview Ave, Littleton, CO 80123-2196
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Orangetheory Fitness
1493 Park Central Dr, Littleton, CO 80129-2756
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Burn Boot Camp
8230 S. Colorado Boulevard B4, Littleton, CO 80122
Greeley 4
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VASA Fitness
2325 23rd Ave, Greeley, CO 80634-6633
Mon-Fri 4am-11pm, Sat 5am-8pm, Sun 7am-6pm
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TR Fitness
3005 W 29th St, Greeley, CO 80631
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Orangetheory Fitness
4111 Centerplace Dr, Greeley, CO 80634-3778
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Alliance Performance Center
2301 115th Ave, Greeley, CO 80634-7781
Parker 4
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Orangetheory Fitness
17051 Lincoln Ave, Parker, CO 80134-3147
Mon-Fri 5am-6:45pm, Sat-Sun 6:15am-12:45pm
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XS CrossFit
6522 Ponderosa Dr, Parker, CO 80138-8023
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Burn Boot Camp
12840 Stroh Ranch Ct, Parker, CO 80134
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Fitness 19
12164 S Hidden Trail Ct, Parker, CO 80138-8853
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VASA Fitness
8543 Church Ranch Blvd, Westminster, CO 80021-5538
Mon-Fri 4am-12am, Sat 5am-8pm, Sun 6am-6pm
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VASA Fitness
12900 Zuni St, Westminster, CO 80234-1309
Mon-Fri 4am-12am, Sat 5am-8pm, Sun 6am-6pm
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VASA Fitness
7353 Federal Blvd, Westminster, CO 80030-4903
Mon-Fri 4am-12am, Sat 5am-8pm, Sun 6am-6pm
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Vertica Fitness Westminster
3013 W 104th Ave #600, Westminster, CO 80031
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Revlutn Gym
3509 S Mason St, Fort Collins, CO 80525
Open 24 hours
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Nourish & Lagree
1630 S Lemay Ave, Fort Collins, CO 80525-1190
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Orangetheory Fitness
2261 E Drake Rd, Fort Collins, CO 80525-1989
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VASA Fitness
480 US Highway 287, Lafayette, CO 80026
Mon-Fri 4am-12am, Sat 5am-8pm, Sun 6am-6pm
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The Training Ground Gym
1370 Miners Dr, Lafayette, CO 80026-2982
Mon-Fri 5am-10:30am, Sat 8am-10:30am, Sun 1pm-2pm
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Orangetheory Fitness
1455 Coal Creek Dr, Lafayette, CO 80026-2785
Lakewood 3
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High Road Gym
835 Wadsworth Blvd, Lakewood, CO 80214-4500
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Club Pilates Belmar
437 S Wadsworth Blvd, Lakewood, CO 80226-3134
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Absolute Personal Fitness
12364 W Alameda Pkwy, Lakewood, CO 80228-2845
Mon-Thu 12pm-6pm, Fri 12pm-4pm
Pueblo 3
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Midtown steel fitness
1000 W 6th St, Pueblo, CO 81003
Open 24 hours
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Muscle Monkey Functional Fitness
3201 S Prairie Ave, Pueblo, CO 81005-3174
Mon-Fri 5:15am-6pm
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Eagleridge Fitness
4710 Eagleridge Cir, Pueblo, CO 81008-2176
Thornton 3
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VASA Fitness
1420 E 104th Ave, Thornton, CO 80233-4306
Mon-Fri 4am-12am, Sat 5am-8pm, Sun 6am-6pm
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Gold's Gym Thornton
550 Thornton Pkwy, Thornton, CO 80229-2100
Open 24 hours
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Orangetheory Fitness
4243 E 136th Ave, Thornton, CO 80602-6916
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Snap Fitness Reunion
18240 E 104th Ave, Commerce City, CO 80022
Open 24 hours
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Burn Boot Camp- Reunion, CO
15360 E 103rd Pl, Commerce City, CO 80022
Durango 2
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Catacombs Fitness
1162 Main Ave, Durango, CO 81301-5136
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CrossFit Catacombs
225C E 8th Ave, Durango, CO 81301
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ATO Fitness
304 Inverness Way S, Englewood, CO 80112-5759
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9Round Kickboxing Fitness
7939 E Arapahoe Rd Ste 140, Englewood, CO 80112
Longmont 2
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VASA Fitness
1630 Pace St, Longmont, CO 80504-2119
Mon-Fri 4am-12am, Sat 5am-8pm, Sun 6am-6pm
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Warrior Playground
700 9th Ave, Longmont, CO 80501-4529
Tue-Thu 3:30pm-7:30pm, Fri 3:30pm-6pm, Sat 10am-4pm, Sun 11am-4pm
Loveland 2
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CrossFit 970
5628 McWhinney Blvd, Loveland, CO 80538-8831
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970_seniors
6820 Powell St, Loveland, CO 80538-9234
Basalt 1
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Elevation Fitness
35 Park Ave, Basalt, CO 81621-9300
Berthoud 1
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Kingdom CrossFit
190 Bunyan Ave, Berthoud, CO 80513-1245
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Orangetheory Fitness
1285 E 1st Ave, Broomfield, CO 80020-3765
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Orangetheory Fitness
3990 Limelight Ave, Castle Rock, CO 80109-8035
Mon-Fri 5am-7:45pm, Sat-Sun 6:15am-12:15pm
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CB South Fitness
310 Elcho Ave, Crested Butte, CO 81224-9616
Dacono 1
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Corso Fitness
730 Glen Creighton Dr, Dacono, CO 80514
Open 24 hours
Delta 1
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Rivers Karate 4 Christ
762 Dodge St, Delta, CO 81416-1724
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Orangetheory Fitness
1931 Sheridan Blvd, Edgewater, CO 80214-1300
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Estes ProActive Fitness
432 W Elkhorn Ave, Estes Park, CO 80517-9082
Mon-Thu 8:30am-6pm, Fri 8:30am-4:30pm, Sat 8:30am-12pm
Evans 1
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Crossfit Battle Ready
3257 35th Ave, Evans, CO 80620-9304
Mon-Fri 5am-7:30pm, Sat 8am-10am
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EverFit20
1262 Bergen Pkwy, Evergreen, CO 80439-4739
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Dark Horse Fitness
4250 Salazar Way, Frederick, CO 80504-3450
Mon-Sun open 24h, Office Mon 8am-5pm
Glendale 1
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Glendale Sports Center
4500 E Kentucky Ave, Glendale, CO 80246-2017
Mon-Fri 5:30am-9pm, Sat 7:30am-5pm, Sun 8:30am-5pm
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Raise The Barre Fitness
632 Market St, Grand Junction, CO 81505-4301
Holyoke 1
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Holyoke Fitness Club
123 S Interocean Ave, Holyoke, CO 80734-1532
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Orangetheory Fitness
9090 Sky Ridge Ave, Lone Tree, CO 80124-5715
Mancos 1
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Vagabond Personal Training
116 N Main St, Mancos, CO 81328-5004
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DRVN Training Co.
11450 Cherokee St, Northglenn, CO 80234-3012
Salida 1
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City of Salida Parks and Recreation
410 W US-50, Salida, CO 81201-2236
Trinidad 1
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Snap Fitness Trinidad
2202 Freedom Rd, Trinidad, CO 81082
Open 24 hours
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Alpine CrossFit
12090 W 50th Ave, Wheat Ridge, CO 80033
Mon-Fri 5:30am-6:30pm, Sat 8am-10am, Sun 8am-9am
Windsor 1
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CrossFit Endure
687 Gyrfalcon Ct, Windsor, CO 80550-3429
Also in Colorado
- 24-Hour Gyms186
- Gyms with Group Classes144
- Gyms with a Sauna123
- Gyms Offering Flexible Membership Plans122
- Gyms with Childcare102
- Gyms with a Pool98
- Gyms with Transparent Membership Plans97
- 24-Hour Gyms with Round-the-Clock Access94
- Gyms with Group Fitness Classes45
- Orangetheory Fitness Studios and Group Classes24
- Gyms and Fitness Clubs with Red Light Therapy14
Good to know
Are no-contract gyms more expensive than contract gyms?
Sometimes — gyms often price month-to-month plans a few dollars higher than long-term contracts to offset the flexibility, since they can't guarantee your membership past 30 days. The gap is usually small, often just a few dollars a month.
Can I cancel a no-contract gym membership anytime?
Generally yes, but "anytime" usually still means giving written notice before a specific billing cutoff, not walking out and stopping payment. Check the gym's cancellation policy for the exact notice period and whether it must be done in person.
How much does a personal trainer cost?
Personal training sessions generally range from $50 to $120 per hour across Colorado. Rates depend on session duration, trainer credentials, and package options. You can browse 128 local fitness centers on GymFinderAtlas to find qualified trainers near you.
How long to train for marathon?
Training for a marathon typically takes 16 to 20 weeks for runners with a consistent baseline fitness level. The process involves gradually building weekly mileage, completing regular long runs, and prioritizing recovery. If you want structured guidance, search GymFinderAtlas to connect with experienced running coaches.