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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.

Paper Charts (PDF)

Download our free paper charts to record your temperatures and track your symptoms.

By Tempdrop team

Updated February 09, 2025

Paper Charts (PDF)

Tempdrop's paper fertility charts

Access our paper charts to record your temperatures and track your symptoms.

We offer two options: 

1. Use a TCOYF based chart.

Download Tempdrop's TCYOF Fertility Chart

 

  Download TCOYF Chart

2. Use our customisable chart to use alongside your chosen fertility awareness method.

Download Tempdrop's Custom chart

  Download CUSTOM Chart

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