Calculate body mass index from height and weight and see how the standard adult BMI formula works.
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BMI, BMR, calorie needs, body measurements and heart-rate estimates for general reference.
Enter the requested values above and select Calculate. The result updates immediately on the page, so you can change one value and compare different scenarios without leaving the calculator.
A person who is 5 ft 10 in and 170 lb has a BMI of about 24.4.
Estimate body mass index from height and weight using the standard adult BMI formula. It is designed for quick estimates and everyday problem solving. When a calculation affects a contract, tax filing, medical decision or other high-stakes situation, verify the result with the appropriate professional or authoritative source.
At 5 feet 10 inches and 170 pounds, BMI is about 24.4: 703 times 170 divided by 70 squared.
BMI compares body weight with squared height; it does not measure body-fat percentage.
Adult BMI is a screening metric and may not reflect health for athletes, children, or pregnant people; it is not a diagnosis.
Related tools: Calorie Needs Calculator · TDEE Calculator
Estimate body mass index from height and weight using the standard adult BMI formula.
BMI = weight(lb) ÷ height(in)² × 703.
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The adult BMI formula and category guidance can be compared with the U.S. Centers for Disease Control and Prevention. BMI is a screening measure and is not a diagnosis.
BMI is a population-level screening measure and does not directly measure body fat or diagnose health. Interpret results in context with a qualified clinician when health decisions are involved.
Related tools: Body Fat Calculator · Waist-to-Height Ratio.
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