skims bra size calculator

Your ultimate tool for finding the perfect SKIMS bra fit. Say goodbye to guesswork and hello to comfort.

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Your Sister Size Chart

Band Down / Cup Up	Your Size	Band Up / Cup Down
—	—	—

Sister sizes have the same cup volume. If the band feels tight, try the “Band Up” size. If it’s loose, try the “Band Down” size.

What is a skims bra size calculator?

A skims bra size calculator is a specialized tool designed to help you find your most accurate bra size based on the unique sizing system used by the brand SKIMS. Unlike generic calculators, it accounts for the specific fit and materials of SKIMS bras, ensuring a more reliable recommendation. Finding the correct bra size is crucial for comfort, support, and confidence. An ill-fitting bra can cause discomfort, back pain, and poor posture. This calculator simplifies the process by taking two key measurements—your underbust and overbust—to determine both your band and cup size. It’s the first step toward experiencing the renowned comfort and fit of SKIMS lingerie.

This tool is for anyone who wants to purchase a SKIMS bra but is unsure of their size. Whether you are new to the brand or your body has changed, using a skims bra size calculator removes the guesswork. A common misunderstanding is that bra sizes are universally standard, but they can vary significantly between brands. For an accurate measurement, our bra fitting guide provides detailed instructions.

skims bra size calculator Formula and Explanation

The calculation for bra size involves two primary steps: determining the band size and then the cup size. The relationship between these two measurements gives you your final bra size.

1. Band Size: This is based on your underbust measurement. The raw measurement is typically rounded to the nearest even number to get the band size. For example, a 29.5-inch measurement rounds up to a 30 band, and a 31-inch measurement rounds up to a 32 band.
2. Cup Size: This is determined by the difference between your overbust measurement and your calculated band size. Each inch of difference corresponds to a cup letter.

Formula: Cup Size = Overbust Measurement – Band Size

Bra Size Calculation Variables

Variable	Meaning	Unit	Typical Range
Underbust Measurement	The measurement in inches or cm around your ribcage, directly under your bust.	in / cm	26 – 48 in
Overbust Measurement	The measurement in inches or cm around the fullest part of your bust.	in / cm	28 – 55 in
Cup Difference	The result of Overbust minus Band Size. This determines the cup letter.	inches	1 – 10+ in

Practical Examples

Understanding the calculation with real numbers can make the process clearer. Here are a couple of examples.

Example 1:

• Inputs:
  • Underbust Measurement: 31 inches
  • Overbust Measurement: 35 inches
  • Unit: Inches
• Calculation:
  1. Band Size: The underbust is 31 inches. Rounding to the next even number gives a band size of 32.
  2. Cup Difference: 35 inches (Overbust) – 32 inches (Band) = 3 inches.
  3. Cup Size: A 3-inch difference corresponds to a C cup.
• Result: The recommended bra size is 32C.

Example 2:

• Inputs:
  • Underbust Measurement: 86 cm
  • Overbust Measurement: 100 cm
  • Unit: Centimeters
• Calculation:
  1. Convert to Inches: 86 cm ≈ 33.9 in (Underbust), 100 cm ≈ 39.4 in (Overbust).
  2. Band Size: The underbust is 33.9 inches. Rounding to the next even number gives a band size of 34.
  3. Cup Difference: 39.4 inches (Overbust) – 34 inches (Band) = 5.4 inches.
  4. Cup Size: A ~5-inch difference corresponds to a DD (or E) cup.
• Result: The recommended bra size is 34DD. Understanding your sister size chart is also key to a perfect fit.

How to Use This skims bra size calculator

Using our calculator is simple and intuitive. Follow these steps to get your recommended size:

1. Select Your Unit: Start by choosing your preferred measurement unit from the dropdown menu, either inches or centimeters.
2. Enter Underbust Measurement: Using a soft measuring tape, measure around your ribcage directly beneath your bust. Enter this number into the “Underbust Measurement” field.
3. Enter Overbust Measurement: Measure around the fullest part of your bust. Ensure the tape is level and not too tight. Enter this value into the “Overbust Measurement” field.
4. Review Your Results: The calculator will instantly display your recommended bra size, including your calculated band and cup.
5. Check Sister Sizes: The results also include a sister size table. These are alternative sizes with the same cup volume. If your recommended band feels too tight or loose in a specific SKIMS style, a sister size might be the perfect fit.

Key Factors That Affect skims bra size calculator Results

Several factors can influence your bra size and how a bra fits. Being aware of them can help you find true comfort. You may find our guide to SKIMS fit helpful.

• Measurement Accuracy: Ensure the tape measure is snug but not tight and is parallel to the floor. An inaccurate measurement is the most common reason for a poor fit.
• Bra Style: Different bra styles (e.g., Plunge, T-Shirt, Balconette) are designed to fit differently. A 34B in a full-coverage style might feel different than a 34B in a demi-cup.
• Fabric and Stretch: Materials with more elastane or stretch, like those in the SKIMS “Fits Everybody” collection, can be more forgiving and may fit slightly differently than more structured bras.
• Time of the Month: Hormonal fluctuations can cause breast size to change throughout your menstrual cycle. It’s often best to measure mid-cycle for the most consistent sizing.
• Weight Changes: Gaining or losing even a small amount of weight can affect both your band and cup size. It’s a good idea to re-measure every 6-12 months.
• Brand Variations: Even with a tool like this skims bra size calculator, remember that minor variations exist. Always check the specific product’s size guide if available. SKIMS is known for its unique fit. Read more about finding the best bra for me.

Frequently Asked Questions (FAQ)

1. How often should I measure my bra size?

It’s a good practice to re-measure yourself every 6 to 12 months, or after any significant life event like pregnancy, weight loss, or weight gain, as these can alter your size.

2. What if my measurement is an odd number?

Traditional bra sizing methods suggest that if your underbust measurement is an odd number, you should round up to the next even number to find your band size. Our skims bra size calculator does this automatically.

3. What is a sister size?

Sister sizes are alternate bra sizes where the cup volume is the same. For example, a 34C has the same cup volume as a 32D and a 36B. If a bra’s band is too tight, you can go up a band size and down a cup size (e.g., from 34C to 36B) to get a better fit. Check out our sister size chart for more info.

4. Why do my results from this skims bra size calculator seem different from other brands?

Bra sizing is notoriously inconsistent across the industry. Some brands add inches to the band measurement, while others use a direct measurement. This calculator is tailored to modern sizing methods, which are often more accurate.

5. Can I use this calculator for all SKIMS bra styles?

Yes, this calculator provides an excellent starting point for all SKIMS bra styles. However, due to design differences (e.g., bralette vs. underwire), you should always read the fit notes on the product page for the most tailored advice.

6. My recommended cup size seems too large. Is that right?

Many people wear a band size that is too large and a cup size that is too small. A “D” cup is not inherently large; it simply means there is a 4-inch difference between the bust and band. Trust the measurements, and don’t be afraid to try your recommended size.

7. What should I do if I am between sizes?

If you are between sizes, consider the style of the bra. For a style with more structure and less stretch, it might be better to size up. For a stretchy, seamless style, sizing down may provide a more supportive fit.

8. How do I know if my bra fits correctly?

A well-fitting bra should have a snug band that sits level, cups that fully contain your breast tissue without spilling or gapping, and straps that don’t dig in. The center panel (gore) should lie flat against your chest.