Mira Basal Body Thermometer

The Mira Basal Body thermometer helps you recognise your fertile patterns by measuring your basal body temperature (BBT). Use it to understand the rise and fall in your body's temperature during your menstrual cycle. Then, sync and save your data on the Mira App to get more insights!

  • Quick and easy measurements
  • Measures in Fahrenheit and Celsius
  • Connects easily to the free Mira App
  • See your BBT results history + charts on your smartphone
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Using the Mira Basal Body thermometer is easy

Step 1

Download the Mira App and connect your Mira Basal Body thermometer via Bluetooth. 

Step 2

Measure your BBT as soon as you wake up.

Step 3

Your results will automatically sync with the Mira App after a couple of minutes.

Measure your BBT to discover data about your fertile days

Here’s how it works:

  • In general, your BBT will rise if you are ovulating.
  • Measure your BBT throughout several cycles to get a better picture of your fertility. 
  • Draw conclusions by looking at your charts on the Mira App.
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So how does your BBT vary during your cycle?

Changes in your basal body temperature (BBT) typically correlate with changes in your menstrual cycle. Before you ovulate, your BBT ranges between 97°F (36.1°C) and 97.5°F (36.4°C). After the egg releases during ovulation, your BBT increases and averages between 97.6°F (36.4°C) and 98.6°F (37°C).

How to accurately predict and confirm your ovulation & 6-day fertile window

Starting out by testing your BBT is great. To accurately predict your ovulation, use the Mira Analyzer and pinpoint your most fertile days!

Learn More

Navigate your fertility with peace of mind

Your journey shouldn’t feel like an obstacle course. Navigate your fertility confidently with OBGYN-approved fertility boosters and health products.

Mira Max Starter Kit

Includes 10 Max Wands


20 Mira Fertility Max Wands

Tracks LH + E3G+ PdG

Mira Prenatal Multi-Vitamins

60 capsules, 30 servings


Mira Clarity Bundle

Includes 10 MAX Wands & 10 Ovum Wands