Calculate measured height divided by weight, or algebraically solve either value at a chosen ratio. Units are explicit; optional CDC adult BMI interpretation applies at age 20 or older.

Divide measured height by measured weight in the selected units.

Height ÷ weight depends on its units and is not BMI. A chosen ratio solves a mathematical relationship; it is not a personal height or weight target.

Each entry format keeps its own entered values.

Precision and adult BMI interpretation

Adult categories are screening references, not a diagnosis. Pregnancy, muscle mass and other clinical factors need individual assessment.

Screening scope: Height divided by weight is unit-dependent and has no universal healthy target. This tool does not diagnose health or set weight-loss targets. Optional CDC adult BMI categories apply at age 20 or older, with clinical context; children and teens require age- and sex-specific assessment. The corresponding reference weight interval uses BMI 18.5 inclusive to 25 exclusive, not a personal recommendation. Ponderal index is a numerical mass/height-cubed value with no health classification here. Pregnancy, body composition, unintended weight change or eating concerns need appropriate clinical assessment.

Height to Weight (Height ÷ Weight) Formula

The following formula is used to calculate height ÷ weight. This value is unit-dependent (for example, in/lb will not match cm/kg).

Q = H / W
  • Where Q is height ÷ weight (it has units such as in/lb or cm/kg)
  • H is your height
  • W is your weight

To calculate height ÷ weight, divide your height by your body weight using the units you intend to report (for example, inches per pound).

What should your height to weight ratio be?

There is no single clinically accepted “healthy” target for height ÷ weight, and it is not a standard screening metric used by major medical organizations. If you want an evidence-based way to screen weight status or cardiometabolic risk, consider tools such as BMI categories, waist circumference, and waist-to-height ratio, and discuss results with a clinician.

Height to Weight Ratio Example

How to calculate a height to weight ratio?

  1. First, determine your height.

    Take an accurate measurement of your height in inches.

  2. Next, determine your weight.

    Take an accurate measurement of your weight in pounds.

  3. Finally, calculate your ratio.

    Calculate the height to weight ratio using the equation above.

FAQ

What should my height to weight ratio be?

There is no universal healthy height-to-weight ratio: its number changes with the units, and it is not BMI. Adult BMI is one screening measure used with other clinical information, not a diagnosis or a personal target.