I love coffee, but I don’t love the hidden calories and sugar that come with it. Starbucks drinks, in particular, can swing wildly in nutritional values depending on the milk, syrup, and size you choose.
So instead of guessing, I decided to build my own Starbucks Calorie Calculator — a small project that combines my love for web development with my need to track nutrition.
Why I Built It
Like many, I was surprised at how a “simple latte” could turn into a 400+ calorie drink just by changing the milk or adding flavored syrups. I wanted a tool that would:
Instantly update calories and sugar based on customization
Be mobile-friendly and easy to use
Help me (and others) make more informed coffee choices
The Starbucks Calorie Calculator (Live Demo)
👉 Try the Starbucks Calorie Calculator here
No login required
Works seamlessly on desktop and mobile
Built purely with JavaScript + JSON data for drink options
Features
☕ Covers 700+ Starbucks drinks (and growing)
⚡ Real-time updates as you change size, milk, and toppings
📱 Mobile-first design
🧑💻 Built using vanilla JavaScript, no heavy frameworks
How It Works Under the Hood
I created a simple dataset containing drink categories, base calories, and modifiers (like milk or syrups). Then I wrote a calculation function that updates nutritional values dynamically as the user selects options.
It’s basically a real-time config calculator but applied to Starbucks drinks.
What’s Next
I’d love to expand this into:
Seasonal/limited-time drinks
Food items (pastries, sandwiches, etc.)
A small API so others can use the data in their own apps
Final Thoughts
If you’re a coffee lover who also cares about nutrition, this might help you track things more easily.
👉 Try it out here: Starbucks Calorie Calculator
I’d love your feedback — what features should I add next? 🚀
