Calculators
Health & body calculators
Quick health and body calculators that turn measurements into clear, easy-to-read results.
Calculators in this category
BMI calculator
See your BMI, the range it falls into, and the weight span considered a healthy range.
Weight Calculator
Estimate a general healthy weight range from your height, based on BMI reference values 18.5 to 24.9.
Army Fitness Test Calculator
Estimate your Army Fitness Test (AFT) score across the five events: deadlift, hand-release push-up, sprint-drag-carry, plank and two-mile run. Not an official U.S. Army tool.
When these tools help
Choose BMI when you want a quick height-and-weight screening number. Choose the weight calculator when you want a general BMI-based reference range instead of a single score. Choose the Army Fitness Test calculator when you are estimating event scores and totals for the U.S. Army test rather than general health. These tools are meant to explain the maths behind common measures, not diagnose health conditions, and the fitness page is not an official military tool.