Nutrition Calculators & Meal Planning Tools
Training gets the attention. Nutrition quietly decides whether the training actually works. This page brings together FITTUX nutrition calculators and meal planning tools so you can calculate calories, estimate protein intake, plan meals, track hydration and support fat loss, muscle gain and long-term health.
You do not need a perfect diet. You need decisions you can repeat consistently. Use these tools to remove guesswork and build habits that support training week after week.
Calorie Calculator
Use this calorie calculator to estimate your daily calorie needs for maintenance, calculate a calorie deficit for weight loss, or work out a calorie surplus for muscle gain. Based on your bodyweight, height, age and activity level, it provides a realistic daily calorie target so you can track progress, lose fat, build muscle and manage your nutrition more effectively.
Go to Calorie CalculatorBMI Calculator
Use this BMI calculator to calculate your Body Mass Index using kilograms, centimetres, feet, inches, stone or pounds. Check your BMI score instantly, see whether you fall into the underweight, healthy weight, overweight or obese category, and understand what your BMI result may mean for men, women and average adults in the UK.
Go to BMI CalculatorProtein Intake Calculator
Use this protein calculator to calculate your daily protein intake based on bodyweight, activity level and fitness goal. Whether your aim is muscle gain, fat loss, strength training or general health, estimate how many grams of protein per day you may need to support recovery, performance and muscle growth.
Go to Protein CalculatorQuick Protein Meal Planner
Use this meal planner to create simple high-protein meal ideas using ingredients you already have at home. Enter your available foods and generate quick meal suggestions to support muscle gain, fat loss, healthy eating and everyday nutrition without needing a full recipe search.
Go to Meal PlannerWater Intake Calculator
Use this water intake calculator to estimate how much water you should drink per day based on your bodyweight, activity level and exercise habits. Calculate your recommended daily water intake, stay properly hydrated, and understand how training, climate and physical activity can affect your hydration needs.
Go to Water CalculatorHow to Use These Tools
Start with protein intake so you know your daily target. Use the meal planner when you are unsure what to eat and want a quick decision based on what you have available. Then use the hydration calculator to estimate a realistic daily water range.
None of these numbers need to be perfect. What matters is consistency. When protein intake, hydration and meals become predictable, training performance and recovery usually follow.