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Free smoothie calorie calculator. Build your ingredient list in grams, see estimated total batch calories, and split into calories per serving for breakfast blends and post-workout shakes.
Last updated: April 19, 2026
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Use 1 if you drink the whole recipe yourself, or divide into glasses (e.g., 2 for two smoothies).
Total (batch)
286 kcal
Per serving
143 kcal
Breakdown
Values use typical USDA-style energy density per 100 g. Your brand (especially protein powder and plant milks) may differ—adjust grams or use a label when precision matters.
Track
Powder grams matter
Weigh powder or use the scoop mass from your label for best accuracy.
Spinach & kale
Few kcal per cup
Calories often come from fruit and liquids—watch nut butter and sweeteners.
Oats + nut butter
Energy dense
Small amounts of oats and nut butter raise totals quickly.
Servings = 2
Half the batch each
Share a blender batch or save half for later—same total, lower per glass.
Unsweetened vs sweet
Check the carton
Sweetened varieties add sugar calories not modeled here—use label kcal when needed.
Weigh syrups
Dense calories
A tablespoon of honey is easy to underestimate—grams keep you honest.
Banana, milk, strawberries, spinach — 2 servings (defaults in the calculator):
Total batch
286 kcal
Per serving
143 kcal
For each line you fill in, we multiply grams × (kcal per 100 g) ÷ 100 using typical values similar to USDA FoodData style references. We sum those partial calories for the blender batch, then divide by your serving count.
Ingredient kcal = grams × (kcal per 100 g) ÷ 100Total = sum of ingredients · Per serving = Total ÷ servingsServings default to 1 if you leave the field blank in edge cases; the form asks for an explicit number.
A “scoop” varies by how packed the powder is.
Brand-specific products (protein bars blended in, specialty yogurts) can differ from our generic densities. Prefer the Nutrition Facts panel when you need precision.
Totals are only as accurate as your weights and the ingredient list you choose.
Share it with anyone blending shakes at home
Suggested hashtags: #Smoothie #Nutrition #Calories #Calculator