Free Nutrition Calculators

Calculate your Body Mass Index from your height and weight.

Find your daily calorie needs, including your resting (BMR) and activity-adjusted (TDEE) totals.

Work out a protein, carb and fat split based on your calorie target.

Estimate your daily protein needs based on your weight and goal.

Estimate your daily water intake target based on your weight and activity.

Check your daily fibre intake against UK recommended amounts.

See daily energy and key nutrient guidance for children by age band.

Estimate your fertile window based on your cycle length.

Estimate calories burned for walking, running, cycling and more.

Convert a daily step count into miles or kilometres.