Health & fitness calculators
Explore educational health, fitness and body measurement estimates with clearly stated methods.
Before you begin
- These estimates do not diagnose a condition or replace a clinical assessment.
- Use the measurement unit shown with each input.
- Read the method and eligibility before interpreting a result.
Choose your calculator
BMI Calculator
BMI: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatorAdult Weight Screening Calculator
Adult Weight Screening: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatorHealthy Weight Range Calculator
Healthy Weight Range: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatorBMI and Eating Disorder Information
BMI and Eating Disorder Information: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatorBMR Calculator
BMR: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatorCalorie Calculator
Calorie: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatorTDEE Calculator
TDEE: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatorMacro Calculator
Macro: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatorCarbohydrate Calculator
Carbohydrate: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatorProtein Calculator
Protein: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatorFat Intake Calculator
Fat Intake: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatorIdeal Weight Formula Comparison
Ideal Weight Formula Comparison: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatorBody Fat Calculator
Body Fat: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatorArmy Body Fat Estimate
Army Body Fat Estimate: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatorLean Body Mass Calculator
Lean Body Mass: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatorBody Surface Area Calculator
Body Surface Area: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatoreGFR Calculator
eGFR: Adults 20 and older in this tool.
CalculatorPregnancy Calculator
Pregnancy: Estimated pregnancy calendar.
CalculatorDue Date Calculator
Due Date: Estimated pregnancy calendar.
CalculatorPregnancy Conception Calculator
Pregnancy Conception: Estimated pregnancy calendar.
CalculatorOvulation Calculator
Ovulation: Calendar prediction only.
CalculatorConception Calendar
Conception Calendar: Calendar prediction only.
CalculatorPeriod Calculator
Period: Calendar prediction only.
CalculatorPregnancy Weight Gain Calculator
Pregnancy Weight Gain: CDC total-pregnancy ranges, not week-by-week targets.
CalculatorPace Calculator
Pace: Steady average pace with no terrain, weather or fatigue adjustment.
CalculatorCalories Burned Calculator
Calories Burned: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatorOne Rep Max Calculator
One Rep Max: Strength estimates from a completed set of 1–12 repetitions.
CalculatorTarget Heart Rate Calculator
Target Heart Rate: Adult educational estimate, not a diagnosis or individualized treatment.
CalculatorBody Proportion Calculator
Body Proportion: Informal clothing-fit description.
CalculatorBAC Estimate Calculator
BAC Estimate: Rough blood-alcohol model only.
CalculatorLegacy Food Points Calculator
Legacy Food Points: Historical food-points arithmetic only.