Back to Blog

Is 28C Big or Small? Petite Band, Balanced Cup Guide (2025)

April 9, 20256 min readSize Guide

28C combines a 28-inch band with a C cup, creating balanced proportions. This comprehensive guide shows exactly what a 28C bra looks like, how it converts across sizing systems, and how to achieve perfect support.

Fast facts about 28C

  • Band 28 supports underbust measurements around 28-29 inches.
  • C cups signal roughly a 3 inch difference between bust and band.
  • Front-on it creates natural curves; from the side projection is comfortable and supported.
  • Sister sizes 26D and 30B maintain cup volume while adjusting band tension.
  • This guide shows what a 28C bra looks like, how it compares to nearby sizes, and the conversions to every major system.

How 28C is measured

Band fit

Aim for a 26.5-27.5 inch snug underbust so the 28 band provides secure support without feeling restrictive.

Cup depth

Expect around 31-32 inches at the fullest point—roughly 3 inches beyond the snug band measurement.

Support focus

Look for comfortable bands, supportive cups, and proper closures for all-day comfort.

28C bust size in inches

Use these inch checkpoints to confirm your measurements sit squarely in 28C before ordering from any sizing system.

MeasurementTypical inchesHow to capture it
Snug band (ribcage)26.5-27.5 inMeasure firmly under the bust on an exhale, then round to the 28 band label.
Standing bust31-32 inKeep the tape level across the fullest point while you stand tall and relax your shoulders.
Band-to-bust difference≈3 inSubtract your snug band from the standing bust to verify the C-cup gap.
Approx. cup depth2-2.5 inMeasure from the underwire to the apex on a well-fitting bra—confirms the depth needed for projection.

28C bust size in centimeters

MeasurementTypical cmHow to capture it
Snug band (ribcage)71-74 cmMeasure firmly under the bust, let the tape rebound slightly.
Standing bust79-82 cmKeep the tape level across the fullest point while standing naturally; avoid compressing tissue.
Band-to-bust difference≈8 cmSubtract the snug band from the standing bust to confirm the C-cup depth in metric sizing.
Approx. cup depth5-6 cmRun the tape from underwire root to apex on a supportive bra to ensure the cup height matches your projection.
  • Band size 28 fits underbust measurements of approximately 26.5-27.5 inches.
  • Cup size C represents a 3 inch difference between band and bust.
  • Total bust circumference is around 31-32 inches.
  • Individual breast shape and projection can vary significantly within these measurements.

28C inch quick reference

  • 28C ≈ 28 band label, 31-32 in bust, 3-inch cup difference.
  • Sister matches: 26D for more hold, 30B for a touch of breathing room.
  • International equivalents: EU 60C, FR 75C, JP 60C.

Prioritize comfortable support and proper fit for all-day wear.

How 28C tends to look

Wondering what a 28C bra looks like? Expect a comfortable, supported profile that creates balanced curves.

  • Under fitted clothing it creates a natural, comfortable silhouette.
  • Individual body proportions significantly affect how the size appears.
  • Different bra styles emphasize different aspects of fit and support.
  • Properly fitted bras help manage projection and provide all-day comfort.

28C compared with nearby sizes

Use these quick comparisons to understand 28C relative to its equivalent sizes and neighboring cups.

  • 28C vs 28B: the 28B cup is one level smaller, so it suits slightly less volume.
  • 28C vs 30B: 30B keeps the cup depth but relaxes the band by one step—ideal if you need more room.
  • 28C equivalent size: EU 60C / FR 75C / JP 60C. Drop to 26D or up to 30B when you need to adjust the band.

Sister size playbook

  • Shift to 26D when you need a firmer band and closer support around the ribcage.
  • Move to 30B if the 28 band feels restrictive or you're between hook settings.
  • Try 28B when you need just a touch less cup volume while keeping the same band size.

Fit checks before you buy

  • Ensure the center gore rests flat against your sternum—floating indicates you need more cup depth.
  • Look for bras with comfortable support features to keep tissue centered.
  • Choose styles with appropriate closures for better weight distribution and support.
  • Adjust straps for lift but ensure the band carries most of the weight, not your shoulders.

Common 28C questions

What does a 28C bra look like on the body?

It pairs a 28-inch band with a C cup. From the front it creates natural curves; from the side it shows comfortable, supported fullness.

What is the 28C equivalent size?

The closest sisters are 26D for a tighter band and 30B for more ease. In metric systems 28C maps to EU 60C, FR 75C, and JP 60C—the cup volume stays consistent across these conversions.

How does 28C compare to 28B?

28B is one cup level smaller. If you experience spillage in 28B, moving to 28C adds cup volume while keeping the same band size.

Where can I find 28C bras?

Most major lingerie retailers carry 28C bras. Look for brands that offer good sizing ranges and prioritize support features for all-day comfort.

Get the perfect 28C fit

Verify your measurements with our calculator, explore the comprehensive 28C size guide, and compare how different styles look in our perception gallery.