Bra Measurement Calculator

This Bra Measurement Calculator helps users determine their recommended bra size, including band and cup size, based on their underbust and full bust measurements, as well as provides sister size options.

Use Our Bra Measurement Calculator

How to Use the Bra Measurement Calculator

The Bra Measurement Calculator is a tool designed to help you determine your ideal bra size based on specific body measurements. Follow these steps to use the calculator effectively and find a bra size that fits you comfortably.

Step 1: Gather Your Measurements

Before using the calculator, you’ll need two key measurements:

  • Underbust Measurement: Use a measuring tape to measure around your ribcage, directly underneath your bust. Ensure the tape is snug but not too tight. Record this measurement in inches.
  • Full Bust Measurement: Measure around the fullest part of your bust, keeping the tape level and comfortable. This measurement should also be in inches.

Step 2: Enter Your Measurements

Open the Bra Measurement Calculator to enter your measurements:

  • Underbust Measurement (inches): Input the measurement you took around your ribcage. Ensure this value is between 20 and 50 inches, with increments of 0.5 inches.
  • Full Bust Measurement (inches): Input the measurement of the fullest part of your bust. This value should be between 20 and 60 inches with a step of 0.5 inches.

Note: If you know your current band size and cup size, you can enter these as optional fields to help refine your results:

  • Current Band Size (optional): Enter your current band size, if known, within the range of 28 to 48 inches, in increments of 2 inches.
  • Current Cup Size (optional): Select your current cup size from the list of options.

Step 3: Review the Results

Once your measurements are entered, the calculator will process and display the following results:

  • Recommended Band Size: This is the band size calculated based on your underbust measurement. It rounds the measurement to the nearest even number.
  • Bust Difference: The difference between the full bust and underbust measurements, displayed in inches.
  • Recommended Cup Size: Calculated based on the bust difference, this will suggest the most suitable cup size.
  • Recommended Bra Size: A combination of the recommended band size and cup size, providing you with a complete bra size suggestion.
  • Sister Size (Band Up): Provides an alternative size option if you prefer a looser fit by increasing the band size.
  • Sister Size (Band Down): Offers a tighter fit option by decreasing the band size, while keeping the cup proportionally similar.

Use these results to guide your next purchase or fitting session, ensuring a comfortable and supportive bra fit.