A martini is a glamorous accessory at a party, but drink too many and you might wind up with a un-fabulously flabby midsection. Unfortunately for most New Yorkers (even ab-obsessed ones), a night out just isn’t complete without a cocktail—or four. We asked Charles Stuart Platkin, founder of the Diet Detective (dietdetective.com), to calculate the caloric content of some of our favorite specialty drinks and the number of minutes at various tasks it would take to burn those calories off. Then we enlisted Lashaun Dale, national creative director of group fitness at Equinox, to create some Sunday workouts for counteracting intense Saturday nights.—Emily Weiner

The drink
The Volcano: Dark rum, amaretto, peach Schnapps, grenadine and OJ served in a tiki mug ($9) or a flaming Volcano bowl ($25, serves four)

Where to get it
Waikiki Wally’s, 99 E 2nd St between First Ave and Ave A (212-673-8908, waikikiwallys.com)

Calories 268 (per person)

Walk 69 (minutes)

Run 28

Sex 101

Sleep 254

Carrying groceries 30

The workout
A simple “surf and turf workout” should help maintain both your figure and your tropical frame of mind, says Dale.  “Alternate two freestyle laps with a set of 15 poolside crunches and squat thrusts for 45 minutes.”

The drink
New York Sour ($12): Rye whiskey and fresh lemon juice topped with a dash of orange juice and a float of dry red wine

Where to get it
Flatiron Lounge, 37 W 19th St between Fifth and Sixth Aves (212-727-7741, flatironlounge.com)

Calories 131

Walk 34

Run 14

Sex 50

Sleep 124

Carrying groceries 15

The workout
Dale pairs this relatively light drink with “the classic New York workout: a 40-minute speed walk through Central Park.” If you’ve had a few glasses, she suggests a more vigorous calorie-burning class, like “One Shot,” offered at Power Pilates on 23rd St (powerpilates.com).

The drink
Nina Fresa ($11):Stoli Strawberry vodka, muddled strawberry, fresh lime and guava juices, and orange liqueur

Where to get it
Sushi Samba, 245 Park Ave South between 19th and 20th Sts (212-475-9377, sushisamba.com)

Calories 175

Walk 45

Run 19

Sex 66

Sleep 166

Carrying groceries 20

The workout
Dale recommends an “East meets West workout”—a 60-minute ashtanga /vinyasa Power Yoga practice—to sweat out last night’s indulgence. For a guided session, try a class at Union Square’s steamy Prana Power Yoga (pranapoweryoga.com).

The drink
Capeta ($6): Coconut milk, condensed milk, a heavy shot of coconut rum and a “secret” Brazilian herb

Where to get it
Bembe, 81 South 6th St at Berry St, Williamsburg, Brooklyn (718-387-5389, bembe.us)

Calories 284

Walk 73

Run 30

Sex 108

Sleep 269

Carrying groceries 32

The workout
Equinox instructor Craig Hunter’s 45 minute long CYCLEtherapy class focuses on both core strength and visualization to “deepen your journey and enhance a balance between mind and body,” according to Dale. Offered at Equinox on Greenwich Ave and in Soho (equinoxfitness.com).

The drink
The Mediterra ($12): Vodka, fresh pureed black figs, acacia honey syrup and fresh lemon juice, served with a side ramekin of roasted pistachio nuts

Where to get it
Employees Only, 510 Hudson St between Christopher and W 10th Sts (212-242-3021, employeesonlynyc.com)

Calories 428 (includes 160 calories for nuts)

Walk 110

Run 46

Sex 162

Sleep 406

Carrying groceries 49

The workout
If you passed out before you could get through 162 minutes of making-out (see above), Dale suggests compensating with two hours of couple exercises (like partner push-ups, stretching and massage). Bedtime reading: Sex Flex, by Paul Frediani (bn.com).

The drink
The NY Flip: Port, bourbon whiskey, cream and egg yolk ($12)

Where to get it
Little Branch, 20 Seventh Ave South at Leroy St (212-929-4360).

Calories 237

Walk 61

Run 25

Sex 90

Sleep 225

Carrying groceries 27

The workout
Dance your heart out at Patricia Moreno’s DanceSati class (offered at Equinox’s Columbus Circle location), a 45-minute ‘twist-and-turn workout’ that’s almost as fun as your tipsy antics at the club. Or just blast some music and enjoy a 30-minute dance in your own living room.

The drink
The Famous Beer Milkshake: Three scoops of ice cream (Vanilla or Chocolate) blended with several shots of a dark stout in a mocha-like shake ($5 for 11 oz, $17 for 15 oz shake)

Where to get it
Schnack, 122 Union St between Columbia and Hicks Sts, Redhook, Brooklyn (718-855-2879, schnackdog.com).

Calories 856.25

Walk 221

Run 91

Sex 325

Sleep 812

Carrying groceries 97

The workout
This drink was so calorie-loaded that Dale recruited Equinox instructor and fitness guru Steve Feinberg to devise a workout for it in two parts. First, spend 35–45 minutes performing vigorous aerobic exercises like suicide runs or shadowboxing, taking short breaks in between. In phase two, “Spend a few minutes performing a freely flowing, movement-rich warmup, incorporating dance or martial arts.” Then begin a five-round training circuit as follows: bench press, front-loaded squat, standing dumbell bent-over row and single-legged dead lift.