Health & Fitness Calculators
BMI, calories, TDEE, body fat & pregnancy. · 35 calculators
Body Metrics
· 8 toolsBMI CalculatorCalculate body mass index from height and weight.Body Fat (U.S. Navy) CalculatorEstimate body-fat percentage with the U.S. Navy method.Ideal Weight CalculatorFind a healthy target weight range for your height.Lean Body Mass CalculatorEstimate lean mass versus body fat.Waist-to-Hip Ratio CalculatorAssess health risk from your waist-to-hip ratio.Army Body Fat CalculatorEstimate body fat using the U.S. Army standard.Body Surface Area CalculatorCalculate body surface area (BSA) for dosing.Child Height Predictor CalculatorPredict a child's adult height.
Nutrition
· 9 toolsCalorie CalculatorEstimate daily calories to maintain, lose, or gain weight.TDEE CalculatorFind total daily energy expenditure from activity.BMR CalculatorEstimate basal metabolic rate at rest.Macro CalculatorSplit calories into protein, carbs, and fat targets.Water Intake CalculatorEstimate daily water needs from body weight and activity.Protein Intake CalculatorFind a daily protein target for your goals.Weight Loss CalculatorPlan a calorie deficit to reach a goal weight.Keto Macro CalculatorSet keto macros for fat, protein, and carbs.Carbohydrate CalculatorFind a daily carbohydrate target.
Pregnancy
· 2 toolsFitness
· 6 toolsTarget Heart Rate CalculatorFind heart-rate training zones for cardio.One Rep Max CalculatorEstimate your 1RM from reps and weight lifted.Running Pace CalculatorCalculate pace, time, and distance for a run.Calories Burned CalculatorEstimate calories burned by activity and duration.Max Heart Rate CalculatorEstimate maximum heart rate from your age.VO₂ Max CalculatorEstimate cardiovascular fitness (VO₂ max).
Wellness
· 6 toolsBlood Alcohol (BAC) CalculatorEstimate blood-alcohol concentration.Dog Age CalculatorConvert dog years to human years by breed size.Sleep CalculatorFind ideal bed and wake times by sleep cycle.Cat Age CalculatorConvert cat years to human years.GFR CalculatorEstimate kidney function (eGFR).A1C to Glucose CalculatorConvert A1C to estimated average glucose.