Calorie & Macro Calculator

You want a daily number you can trust before you change how you eat — without handing over an email address or logging every meal.

Calorie & Macro Calculator works your figures out from standard formulas and then gets out of the way. No sign-up, and it runs offline.

What you can work out
• Daily calorie target — BMR (Basal Metabolic Rate) and TDEE (Total Daily Energy Expenditure) from your age, weight, height and activity, then a goal on top
• Macros — grams of protein, carbs and fat per day, shown in a visual macro ring
• BMI (Body Mass Index) — see which standard range your result falls into
• Water intake — a daily goal in litres and glasses
• Deficit timeline — an estimate of how long the deficit you choose would take to reach a target weight
• Energy burned — running, walking, cycling or swimming
• Protein needs — daily protein from your weight and activity level
• Ideal weight — a healthy range from height and gender

Built on standard formulas
Mifflin-St Jeor for energy, the US Navy body-fat formula for body estimates, and the Devine formula for ideal weight. Standard nutrition science rather than guesswork, and the formula behind each number is named so you can check it.

Who it is for
• Beginners starting a diet or fitness plan
• People watching their intake for weight management
• Gym-goers working out protein needs
• Anyone checking BMI or ideal weight

Your numbers stay on your phone
• Works fully offline — no internet needed
• No login, no account, nothing sent anywhere
• Supports kg and lbs, cm and ft
• Clean, beginner-friendly design

Disclaimer
Calorie & Macro Calculator gives general wellness estimates from standard formulas. Results are for information only and are not medical advice. Consult a qualified healthcare professional before changing your diet or exercise routine.

Know your numbers before you change your diet.

Questions? officialrjappstudio@gmail.com