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Armband Size Guide

Upper arm circumference

How to Measure

1Wrap a flexible tape measure around your upper arm
2Measure at the fullest part (mid-bicep)
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.

I just came off hormonal birth control - how long should I wait to start charting?

By Liza Blake

Updated February 09, 2025

You can start charting right away after coming off hormonal birth control. In fact, you can even start charting symptoms before coming off hormonal birth control!

I just came off hormonal birth control - how long should I wait to start charting?

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