What is calorie?

Calorie is a simple, always-on web app that helps you track whether you're eating in a way that supports your weight loss goal. Instead of logging every food item or counting macros, you just bump a counter up or down as you eat and exercise throughout the day. Here's how it works. Your body burns a baseline number of calories just by existing, this is your metabolic rate, typically around 2000 calories per day depending on your size and metabolism. On top of that, eating adds calories to your intake, and exercise subtracts them. The app shows you a single number: your current calorie deficit versus your goal (for example, a 500-calorie deficit per day, which adds up to about one pound of weight loss per week). As you go through your day, you use simple +100 or -100 calorie buttons to log your meals and workouts. When you eat a Big Mac, you press +100 five times. When you run and burn 400 calories, you press -100 four times. The number stays green as long as you're on track, and turns red if you're overshooting your goal. The appeal is its simplicity and the always-on awareness it creates. Rather than opening an app to painstakingly log a chicken breast and rice, you keep this counter open in a browser corner and glance at it throughout the day. It answers a practical question: how much more can I eat, or how much do I need to exercise, to stay on my deficit goal? It's less about precision tracking and more about building awareness of your calorie balance in real time. To get started, you open the HTML file in your browser and edit two numbers at the top: your hourly calorie burn rate (derived from your base metabolic rate) and your target daily deficit. That's the only setup required. It's deliberately minimal, no accounts, no food databases, no complexity, just a visual feedback loop to keep you accountable to your goal.