Which is cheaper, Smoothie King or Sonic Drive-In?

Sonic Drive-In is cheaper, averaging $3.28 per item versus $4.83 for Smoothie King — a 32% difference. Based on 156 menu items as of April 2026.

Which has more menu items, Smoothie King or Sonic Drive-In?

Sonic Drive-In has more menu items (92 vs 64). The total combined menu across both chains is 156 items.

Which has lower calories, Smoothie King or Sonic Drive-In?

Sonic Drive-In averages 578 calories per item, compared to 616 for Smoothie King. Both chains offer items under 500 calories.

Are Smoothie King and Sonic Drive-In similar?

Smoothie King (1,300 US locations) and Sonic Drive-In (3,519 US locations) compete on 0 similar menu categories. Cuisine overlap: 0%.

Smoothie King vs Sonic Drive-In (2026)

Side-by-side comparison of menu prices, calories, and value. 64 items at Smoothie King vs 92 items at Sonic Drive-In.

Quick answer: As of April 2026, Smoothie King averages $4.83 per item across 64 menu items, while Sonic Drive-In averages $3.28 across 92 items. Sonic Drive-In is $1.55 cheaper per item (32% difference). Sonic Drive-In has lower average calories (578 vs 616 per item).

Quick Comparison

Smoothie King vs Sonic Drive-In: Quick Price & Menu Comparison
Metric	Smoothie King	Sonic Drive-In	Winner
Avg Price	$4.83	$3.28	Sonic Drive-In
Menu Items	64	92	Sonic Drive-In
Avg Calories	616	578	Sonic Drive-In
US Locations	1,300	3,519	Sonic Drive-In
Secret Menu	0	7	Sonic Drive-In

Sonic Drive-In is 32% cheaper on average than Smoothie King ($1.55 less per item).

Cheapest Items

Smoothie King

Fitness – Muscle Builder or Protein $0.99

Slim Down – Diet Down $0.99

Wellness – Multi-vitamin, Antioxidant, Probiotic, Immune or Fiber Blend $0.99

Energy – Caffeine Charge, Pure Recharge or Energy Boost (No Caffeine) $0.99

Extras – Fruit/Fruit Juice, Yogurt/Ice Cream, Greek Yogurt or Veggies $0.99

Sonic Drive-In

Add (American Cheese, Hot Chili or Spicy Jalapeños) $0.60

Add (Crispy Bacon) $0.60

Tots or Fries $0.79

Vanilla Cone $1.00

Jr. Breakfast Burrito $1.19

Lowest Calorie Options

Smoothie King

Apple Kiwi Bunga 150 cal

Strawberry Bluegurt Blitz 160 cal

Lil Angel™ 190 cal

Choc-A-Laka 200 cal

Gladiator (Vanilla, Chocolate or Strawberry) 230 cal

Sonic Drive-In

Cherry Limeade (Medium) 170 cal

Ocean Water (Medium) 200 cal

Slush (Medium) 200 cal

Super Crunch Chicken Strips 200 cal

Super Crunch Chicken Strips – Combo 200 cal

Deep Comparison: Smoothie King vs Sonic Drive-In

Calorie Value (cents per calorie)

Smoothie King delivers 0.95¢/cal on average, while Sonic Drive-In delivers 0.86¢/cal. Sonic Drive-In gives more calories per dollar — a key metric for value-per-meal seekers.

Menu Category Overlap

Smoothie King and Sonic Drive-In share 0 menu categories (0% Jaccard overlap). Low overlap — these chains serve mostly different food categories.

What Fits in Your Budget

$10 budget: Smoothie King fits 3 items (1380 cal), Sonic Drive-In fits 3 items (320 cal)
$15 budget: Smoothie King fits 3 items (750 cal), Sonic Drive-In fits 3 items (1790 cal)
$20 budget: Smoothie King fits 3 items (1530 cal), Sonic Drive-In fits 3 items (2090 cal)

Where They Rank in Our 414-Chain Dataset

Smoothie King ranks #86 of 414 on price (cheaper than 79% of tracked chains). Sonic Drive-In ranks #18 of 414 (cheaper than 96% of chains).

Calorie Distribution (items under 500 cal)

At Smoothie King, 24% of menu items with calorie data come in under 500 calories. At Sonic Drive-In, 46% are under 500 calories. Sonic Drive-In offers more lower-calorie options proportionally.

Bottom Line

Budget pick: Sonic Drive-In ($3.28 avg vs $4.83)
More variety: Sonic Drive-In (92 items)
More locations: Sonic Drive-In (3,519 US locations)
Best calorie value: Sonic Drive-In (0.86¢/cal)

Full Menus

Smoothie King Menu Sonic Drive-In Menu Cheapest Fast Food Low Calorie Guide