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Armband Size Guide

Upper arm circumference

How to Measure

  1. 1Wrap a flexible tape measure around your upper arm
  2. 2Measure at the fullest part (mid-bicep)
  3. 3Note in inches or centimeters

Size chart

Size Inches cm
Standard Armband 8.5″ – 15.5″ 21.5 – 39 cm
Extra-Long Armband 12.5″ – 18.5″ 31.5 – 47 cm
Both armbands fit most body types.
Additional bra extenders can be purchased at any store if larger sizing is required.

Why should I track other symptoms?

By Gemma Rigby

Adding your cervical mucus (also known as cervical fluid) observations to the Tempdrop app will help you to identify your fertile window in real-time. The quality of cervical mucus increases as you approach ovulation, making it a key sign for you to track to help you understand whether it’s possible to get pregnant, or not. 

Cervical mucus (CM) has two main purposes:

  1. to sustain and move sperm when you’re fertile, and
  2. to protect against infection both when you’re fertile and infertile.

To learn more about the importance of tracking it, we have a plethora of resources for you in the Tempdrop app (Tempdrop Academy Lessons, available with Tempdrop Premium subscription), on our resources page, and also many articles on our website - just type "cervical mucus" into the search bar. 

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