Health & Fitness Calculators — Free BMI, Calorie & Wellness Tools
BMI, calorie, and fitness tracking tools.
7
Tools Available
About These Health & Fitness Tools
Explore our free UK health and fitness calculators. Calculate your BMI, daily calorie needs, ideal weight, water intake, and more — all based on NHS and UK health guidelines. No account needed.
Start With Popular Health & Fitness Tools
Follow this health & fitness calculator silo from the category hub into the most useful tools, then move between related calculators from each tool page.
All Health & Fitness Tools (7)
BMI Calculator
Calculate your Body Mass Index (BMI) to see if you are in a healthy weight range.
Love Calculator
Discover your compatibility score with our fun and interactive Love Calculator.
Calorie Calculator
Calculate your daily calorie needs for weight loss, maintenance, or weight gain based on the Mifflin-St Jeor Equation.
BMR Calculator
Calculate your Basal Metabolic Rate (BMR) to find out how many calories your body burns at rest.
Water Intake Calculator
Calculate how much water you should drink daily based on your weight, activity level, and climate.
Ideal Weight Calculator
Find your ideal body weight range based on the Robinson formula and your height.
Dog Age Calculator
Convert your dog's age to human years accurately based on their size and weight.