Calorie Tracker - Daily Food Log & Calorie Counter

How to use this tool

1. Choose a goal. Keep the default calorie goal or change it; optional daily macro targets can be added at the same time.
2. Select a day and meal. Use the date arrows to open a local day, then choose Breakfast, Lunch, Dinner, or Snacks.
3. Log and review food. Enter a food name and calories, optionally add protein, carbohydrate, and fat grams, then review the day and meal totals.

How to use the calorie tracker

Set a daily calorie goal, choose the date and meal, then enter a food name and its calories. Protein, carbohydrate, and fat grams can be added when you have them, but they are optional. The summary shows calories eaten, calories remaining, and optional macro totals against any targets you set.

Use the date arrows to review earlier local days; each day has its own breakfast, lunch, dinner, and snacks sections. New entries are grouped by meal and show that meal's calorie subtotal. The tracker does not look up foods or infer calories from a name, so use the package label or another reliable source when entering a value.

What is a calorie?

A calorie (kcal) is a unit of energy. Your body needs a certain number of calories each day to maintain its current weight; this is your Total Daily Energy Expenditure (TDEE). Eating less than your TDEE creates a calorie deficit (weight loss); eating more creates a surplus (weight gain).

How to find your daily goal

Use our BMR / TDEE Calculator to estimate your daily energy needs. For weight loss, a deficit of 300–500 kcal per day is a sustainable starting point.

Privacy

Food entries and goals are stored in localStorage in this browser. Nothing you enter is sent to a server, and there is no account or cloud sync. Logs remain under their calendar dates until you use Clear saved data or clear this site's browser storage. If other people use this device, clear the saved data when you are finished.

Macronutrients and calories

All calories come from three macronutrients (and alcohol):

• Protein: 4 kcal per gram. Essential for muscle repair and immune function.
• Carbohydrates: 4 kcal per gram. The body's preferred energy source.
• Fat: 9 kcal per gram. More than twice as calorie-dense as protein or carbs.
• Alcohol: 7 kcal per gram (often called "empty calories" as it provides no nutrition).

When you record all three macro values for an entry, the tracker compares the stated calories with the rough 4/4/9 estimate. This is a consistency hint, not a correction: alcohol, fiber, sugar alcohols, label rounding, and differences in serving measurements can all affect the result. Macro targets are optional and should not be treated as a personalized nutrition plan.

Reading nutrition labels

The calorie number on a nutrition label is per serving, not per package. Always check the serving size at the top of the label first. A bag of chips listed as "150 calories" may contain 3 servings, making the actual package 450 calories. The FDA requires serving sizes to reflect realistic portion sizes, but they can still be misleadingly small for single-serving packaging.

Why calorie tracking can be inaccurate

• Food database errors: studies have found errors of up to 20% in commercial food databases. User-submitted entries can be significantly less accurate.
• Restaurant portions: restaurant meals vary in actual portion size from stated values by 30% or more.
• Measuring by volume vs. weight: volume measurements (cups, tablespoons) are much less accurate than weighing ingredients in grams. A "cup" of a dense ingredient can vary by 20–30% depending on how it is packed.
• Cooking methods change calories: frying adds fat; boiling can leach some nutrients. The raw vs. cooked weight of the same ingredient varies significantly.

Use calorie tracking as a consistency tool rather than a precise measurement system. Estimates do not diagnose a condition or prescribe an intake target; consult a registered dietitian or healthcare provider for advice tailored to your health.