Most BMI calculators online ask for your weight in kilograms and height in centimeters. If you think in feet, inches, and pounds — like most people in the US and UK — you end up doing a unit conversion just to use the calculator. The BMI calculator at Ultimate Tools accepts imperial units directly: feet, inches, and pounds. No conversion step. Calculate your BMI in imperial units: BMI Calculator — Feet, Inches, Pounds The Imperial BMI Formula For those who want to understand the math: BMI = (weight in pounds × 703) ÷ (height in inches)² Example: 5'9" (69 inches), 160 lbs BMI = (160 × 703) ÷ (69²) = 112,480 ÷ 4,761 = 23.6 The 703 factor is the conversion constant that makes the imperial formula produce the same BMI values as the metric formula.…