Calculators for Nutrition Science

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Convert Units of Measurement

Cholesterol
Energy
Height
Vitamin B12
Vitamin D
Weight

Calculate

Body Mass Index (BMI)
Energy Requirements
Ideal Body Weight
Physical Activity Level

Cholesterol

mg/dl
mmol/l

Energy

calories (kcal)
kilojoules (kJ)

Height

cm
meters
feet inches

Vitamin B12

Blood Levels

pg/ml
pmol/l

Vitamin D

Blood Levels | 25(OH)D

Normal levels according to Institute of Medicine: 40 - 50 nmol/l (16 - 20 ng/ml)

ng/ml
nmol/l

Intake Amounts

International Units (IU) | Micrograms (µg or mcg)

µg
IU

Weight

Kilograms
Pounds

Body Mass Index (BMI)

Body Mass Index (BMI) is a measure of someone's weight to height ratio.

BMI = weight in kg ÷ height in meters2

BMI (kg/m2)

Ideal Body Weight

A healthy BMI is considered to be between 20 and 25, with about 22.5 generally associated
with the lowest risk of early death. BMI does not take into account muscle mass or bone size,
so these ideal body weights can only be used as a rough estimate.

This form calculates ideal body weight based on a BMI of 20.0, 22.5, and 25.0.

BMI of 20.0 Weight (kg) Weight (lbs)
BMI of 22.5 Weight (kg) Weight (lbs)
BMI of 25.0 Weight (kg) Weight (lbs)