How to Take Arm Circumference with MUAC Tape

The MUAC tape is special to measure the upper arm circumference of infants from 6 - 59 months (26cm), children from 10 - 18 years (45cm) and adults and pregnant women (56cm).
It is based on UNICEF guidelines and marked with colors to easily identify the nutritional status of the patient:

  • Red indicates severe malnutrition
  • Yellow indicates risk of malnutrition
  • Green represents adequate nutrition.


Taking Arm Circumference with CIMDER Tape

It is necessary to know the midpoint of the arm before taking the upper arm circumference. People with experience in anthropometric measurements can easily identify the midpoint of the arm without taking a measurement, however, if you do not have such knowledge consider the following:

International Customers:



All Other Countries

Latin America 

Become a Distributor

Contact Us


  • Identify and mark the acromion (lateral shoulder bone) and olecranon (elbow bone) with an erasable pencil.
  • With the patient's right arm bent 90 ° close to the trunk, place an anthropometric tape measure with the 0 at the marked point of the acromion and extend to the olecranon.
  • Without removing the tape, read the total measurement and identify half of it and mark it on the arm.
  • Insert the end of the CIMDER tape through the hole where the indicator arrows are located.

 Mid-Upper Arm Circumference Muac Tape Measure

  • At the midpoint of the marked arm, place the CIMDER tape measure with the thickest part where the indicator arrows meet in front of your visual field.
  • Adjust the tape to the size of the arm without exerting pressure and read the measurement
  how to measure with Mid-Upper Arm Circumference Muac Tape Measure

Related Articles

Articles About Anthropometry