# Calvin: AI calorie tracking > Calvin is a photo-first AI calorie tracking app. Take a photo of your > meal and get nutrition analysis with macronutrient breakdowns. > Available as a free iOS app with a Pro tier for AI meal analysis > and detailed nutrition insights. ## Nutrition calculators - [TDEE Calculator](https://www.calvin.vip/tools/tdee-calculator): Calculate your Total Daily Energy Expenditure to understand how many calories you burn each day. - [Macro Calculator](https://www.calvin.vip/tools/macro-calculator): Calculate your optimal protein, carbohydrate, and fat intake based on your goals. - [Protein Calculator](https://www.calvin.vip/tools/protein-calculator): Calculate how much protein you need daily based on your body weight and activity level. - [Calorie Deficit Calculator](https://www.calvin.vip/tools/deficit-calculator): Calculate a safe calorie deficit for sustainable weight loss. - [Body Fat Calculator](https://www.calvin.vip/tools/body-fat-calculator): Estimate your body fat percentage using the Navy method or measurements. - [Recipe Calorie Calculator](https://www.calvin.vip/tools/recipe-calculator): Calculate the nutrition facts for your homemade recipes and meals. ## Popular foods: nutrition facts - [Chicken Breast](https://www.calvin.vip/calories/chicken-breast): 128 cal per 3 oz cooked, boneless - [Egg](https://www.calvin.vip/calories/eggs): 72 cal per 1 large egg - [Rice](https://www.calvin.vip/calories/rice): 206 cal per 1 cup cooked white rice - [Banana](https://www.calvin.vip/calories/banana): 105 cal per Medium (7-8") - [Avocado](https://www.calvin.vip/calories/avocado): 160 cal per 1/2 avocado - [Salmon](https://www.calvin.vip/calories/salmon): 177 cal per 3 oz cooked fillet - [Oatmeal](https://www.calvin.vip/calories/oatmeal): 166 cal per 1 cup cooked (from 1/2 cup dry) - [Yogurt](https://www.calvin.vip/calories/yogurt): 100 cal per 1 cup plain Greek (nonfat) - [Almonds](https://www.calvin.vip/calories/almonds): 164 cal per 1 oz (23 almonds) - [Sweet Potato](https://www.calvin.vip/calories/sweet-potato): 103 cal per Medium (5" long) - [Broccoli](https://www.calvin.vip/calories/broccoli): 31 cal per 1 cup chopped, raw - [Olive Oil](https://www.calvin.vip/calories/olive-oil): 119 cal per 1 tablespoon ## Exercise calorie calculators - [HIIT](https://www.calvin.vip/burn/hiit): ~281 cal/30 min at 155 lbs - [Kickboxing](https://www.calvin.vip/burn/kickboxing): ~352 cal/30 min at 155 lbs - [Walking](https://www.calvin.vip/burn/walking): ~123 cal/30 min at 155 lbs - [Running](https://www.calvin.vip/burn/running): ~345 cal/30 min at 155 lbs - [Swimming](https://www.calvin.vip/burn/swimming): ~246 cal/30 min at 155 lbs - [Cycling](https://www.calvin.vip/burn/cycling): ~281 cal/30 min at 155 lbs - [Kettlebell](https://www.calvin.vip/burn/kettlebell): ~345 cal/30 min at 155 lbs - [Boxing](https://www.calvin.vip/burn/boxing): ~274 cal/30 min at 155 lbs ## Food comparisons - [Rice vs Quinoa](https://www.calvin.vip/compare/rice-vs-quinoa): side-by-side nutrition comparison - [Chicken Breast vs Ground Beef](https://www.calvin.vip/compare/chicken-breast-vs-ground-beef): side-by-side nutrition comparison - [White Rice vs Brown Rice](https://www.calvin.vip/compare/rice-vs-brown-rice): side-by-side nutrition comparison - [Salmon vs Tuna](https://www.calvin.vip/compare/salmon-vs-tuna): side-by-side nutrition comparison - [Butter vs Olive Oil](https://www.calvin.vip/compare/butter-vs-olive-oil): side-by-side nutrition comparison - [Tofu vs Chicken Breast](https://www.calvin.vip/compare/tofu-vs-chicken-breast): side-by-side nutrition comparison - [Oatmeal vs Eggs](https://www.calvin.vip/compare/oatmeal-vs-eggs): side-by-side nutrition comparison - [Sweet Potato vs Potato](https://www.calvin.vip/compare/sweet-potato-vs-potato): side-by-side nutrition comparison ## Blog - [Protein Timing: Does It Actually Matter When You Eat It?](https://www.calvin.vip/blog/protein-timing-does-it-matter): Does protein timing matter, or is the anabolic window a myth? What meta-analyses say about when to eat protein, and the few cases where timing helps. - [Why Fitness Trackers Overestimate Calorie Burn (And How to Adjust)](https://www.calvin.vip/blog/why-fitness-trackers-overestimate-calorie-burn): Your watch says you burned 600 calories. Research suggests it is often wrong by 20 to 90 percent. Here is why fitness trackers overestimate burn and how to adjust. - [Does Muscle Really Burn More Calories Than Fat? The Real Numbers](https://www.calvin.vip/blog/does-muscle-burn-more-calories-than-fat): Muscle burns more calories than fat at rest, but the gap is far smaller than gym lore claims. Here are the real per-pound numbers and what they mean for fat loss. - [How to Track Coffee Shop Drinks: Latte Calories, Milk Math, and Hidden Syrups](https://www.calvin.vip/blog/how-to-track-coffee-shop-drinks): Latte calories range from 130 to over 400 depending on milk, size, and syrup. Here's how to track any coffee shop drink without guessing. - [How to Track Condiment Calories: Sauces, Dressings, and Cooking Fats](https://www.calvin.vip/blog/how-to-track-sauces-dressings-and-condiments): Condiment calories are the most common gap in food logs. Here's what dressings, sauces, and cooking fats actually cost, and a system for tracking them. - [Are All Calories Created Equal? The Nuance Behind the Saying](https://www.calvin.vip/blog/are-all-calories-created-equal): Are all calories created equal? For energy balance, mostly yes. For digestion, hunger, and body composition, no. Here's what the research actually says. ## Diet & nutrient guides - [High Protein Foods](https://www.calvin.vip/foods/high-protein): foods ranked by protein content - [Low Carb Foods](https://www.calvin.vip/foods/low-carb): low carbohydrate food options - [Keto Foods](https://www.calvin.vip/foods/keto): keto-friendly foods - [High Fiber Foods](https://www.calvin.vip/foods/high-fiber): high fiber food options - [Vegan Foods](https://www.calvin.vip/foods/vegan): plant-based food options ## About - [About Calvin](https://www.calvin.vip/about): our mission and team - [App Store](https://apps.apple.com/app/id6758075571): download Calvin for iOS