Why use MyVitalCalc?
Body Composition
BMI Calculator
Calculate your Body Mass Index from height and weight. Includes a spectrum chart and category breakdown.
Body CompositionIdeal Weight Calculator
See your healthy weight range using four established formulas: Hamwi, Devine, Robinson, and Miller.
Body CompositionBody Fat % Calculator
Estimate body fat percentage using the US Navy tape-measure method from neck, waist, and hip measurements.
Body CompositionKids BMI Calculator
BMI-for-age percentile calculator for children ages 2–19, using CDC growth chart reference data.
Body CompositionNutrition & Energy
Daily Calorie Calculator
Find your TDEE and calorie targets for maintenance, weight loss, or muscle gain using Mifflin-St Jeor.
NutritionMacro Calculator
Get protein, carb, and fat targets in grams with a visual donut chart. Supports keto, low-carb, and more.
NutritionWater Intake Calculator
Recommended daily water intake based on weight, activity level, climate, and pregnancy status.
NutritionCalorie Burn Calculator
Calories burned for 40+ activities using MET values. Compare activities by calories burned per hour.
FitnessVitamin & Mineral Reference
NIH RDA and upper intake levels for all major vitamins and minerals by age group and sex. Reference only.
ReferenceHeart & Wellness
Blood Pressure Reference
Enter your systolic/diastolic reading to see your AHA category with a color-coded gauge and log tool.
CardiovascularSleep Cycle Calculator
Find optimal bedtimes or wake-up times based on 90-minute sleep cycles. Wake up refreshed, not groggy.
Wellness