Smoothie & Protein Shake Calorie Calculator
Build your customized smoothie or protein shake and calculate exact calories, protein grams, carbs, fiber, and healthy fats.
🥗 Interactive Smoothie & Protein Shake Calorie Calculator
About this Calculator
Methodology & Formulas: This Smoothie calculator uses standard physiological formulas and evidence-based guidelines to provide accurate estimates.
Reviewed by: Dr. Rekha Kumar, M.D., M.S., Lead Medical Reviewer
Last Updated: August 2026
Sources & Citations: Guidelines from the NIH and CDC were consulted in the creation of this tool.
Disclaimer: This tool is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider.
Frequently Asked Questions
How many calories should be in a weight loss smoothie?
A meal-replacement weight loss smoothie should target 300 to 450 calories with at least 25g of protein and 5g of fiber.
How much protein does one scoop of Whey add?
One standard 30g scoop of whey protein powder adds 110 to 130 calories and 24–26g of pure protein.
How do nut butters impact shake calories?
1 tablespoon of peanut or almond butter adds 95 calories and 8g of fat, so measure carefully.
Scientific References & Clinical Guidelines
- CDC Healthy Weight Guidelines - Centers for Disease Control and Prevention
- NIH National Heart, Lung, and Blood Institute (NHLBI) Obesity Guidelines
- PubMed studies on rate of fat mass vs. lean mass loss