Monster vs Rockstar

Caffeine, sugar, calories and community ratings side by side. We're using Monster Energy Original Green and Rockstar Energy Original as the stand-ins for each line.

Both carry 160 mg of caffeine per can — no difference on that front.
Rockstar Energy Original carries 9 g more sugar (63 g vs 54 g).
Calories land at 210 for Monster Energy Original Green and 260 for Rockstar Energy Original.

	Monster Energy Original Green Monster Energy Check Prices	Rockstar Energy Original Rockstar Check Prices
Rating	3.6 (5)3.6 out of 5 from 5 ratings	Not yet rated
Type	lifestyle	lifestyle

Monster Energy Original Green ingredients

Carbonated Water
Sugar
Glucose
Citric Acid
Natural Flavors
Taurine
Sodium Citrate
Grape Skin Extract (Color)
Panax Ginseng Extract
L-Carnitine L-Tartrate
Caffeine
Sorbic Acid (Preservative)
Benzoic Acid (Preservative)
Niacinamide (Vitamin B3)
Sucralose
Salt
D-Glucuronolactone
Inositol
Guarana Extract
Pyridoxine Hydrochloride (Vitamin B6)
Riboflavin (Vitamin B2)
Maltodextrin
Cyanocobalamin (Vitamin B12)

Full Monster Energy Original Green page →

Rockstar Energy Original ingredients

Carbonated Water
Sugar
Glucose Syrup
Citric Acid
Taurine
Natural and Artificial Flavor
Sodium Citrate
Caffeine
Caramel Color
Glucuronolactone
Sodium Benzoate (Preservative)
Potassium Sorbate (Preservative)
Inositol
L-Carnitine
Guarana Seed Extract
Niacinamide (Vitamin B3)
Calcium Pantothenate (Vitamin B5)
Milk Thistle Extract
Panax Ginseng Root Extract
Yellow 5
Pyridoxine Hydrochloride (Vitamin B6)
Riboflavin (Vitamin B2)
Cyanocobalamin (Vitamin B12)

Full Rockstar Energy Original page →

Common questions

Does Monster or Rockstar have more caffeine?: Neither — Monster Energy Original Green and Rockstar Energy Original both contain 160mg of caffeine per can.
Which is stronger per ounce, Monster or Rockstar?: Neither — both work out to 10mg of caffeine per fl oz.
Does Monster or Rockstar have more sugar?: Rockstar. Rockstar Energy Original has 63g of sugar per can, while Monster Energy Original Green has 54g.
Which has fewer calories, Monster or Rockstar?: Monster. Monster Energy Original Green has 210 calories per can versus 260 in Rockstar Energy Original.
What's the difference between Monster and Rockstar?: Comparing Monster Energy Original Green and Rockstar Energy Original: both carry 160mg of caffeine, sugar is 54g versus 63g, calories are 210 versus 260. Full ingredient lists for both are on this page.

Browse every flavor: Monster · Rockstar · or build your own comparison.

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Monster Energy Original Green

Monster Energy

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Rockstar Energy Original

Rockstar

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Rating

3.6 (5)

Not yet rated

Type

lifestyle

Monster Energy Original Green ingredients

Carbonated Water

Sugar

Glucose

Citric Acid

Natural Flavors

Taurine

Sodium Citrate

Grape Skin Extract (Color)

Panax Ginseng Extract

L-Carnitine L-Tartrate

Caffeine

Sorbic Acid (Preservative)

Benzoic Acid (Preservative)

Niacinamide (Vitamin B3)

Sucralose

Salt

D-Glucuronolactone

Inositol

Guarana Extract

Pyridoxine Hydrochloride (Vitamin B6)

Riboflavin (Vitamin B2)

Maltodextrin

Cyanocobalamin (Vitamin B12)

Full Monster Energy Original Green page →

Rockstar Energy Original ingredients

Carbonated Water

Sugar

Glucose Syrup

Citric Acid

Taurine

Natural and Artificial Flavor

Sodium Citrate

Caffeine

Caramel Color

Glucuronolactone

Sodium Benzoate (Preservative)

Potassium Sorbate (Preservative)

Inositol

L-Carnitine

Guarana Seed Extract

Niacinamide (Vitamin B3)

Calcium Pantothenate (Vitamin B5)

Milk Thistle Extract

Panax Ginseng Root Extract

Yellow 5

Pyridoxine Hydrochloride (Vitamin B6)

Riboflavin (Vitamin B2)

Cyanocobalamin (Vitamin B12)

Full Rockstar Energy Original page →

Common questions

Does Monster or Rockstar have more caffeine?

Neither — Monster Energy Original Green and Rockstar Energy Original both contain 160mg of caffeine per can.

Which is stronger per ounce, Monster or Rockstar?

Neither — both work out to 10mg of caffeine per fl oz.

Does Monster or Rockstar have more sugar?

Rockstar. Rockstar Energy Original has 63g of sugar per can, while Monster Energy Original Green has 54g.

Which has fewer calories, Monster or Rockstar?

Monster. Monster Energy Original Green has 210 calories per can versus 260 in Rockstar Energy Original.

What's the difference between Monster and Rockstar?

Comparing Monster Energy Original Green and Rockstar Energy Original: both carry 160mg of caffeine, sugar is 54g versus 63g, calories are 210 versus 260. Full ingredient lists for both are on this page.