AMPHI (Wacoal) • Brand Size Conversion Hub

AMPHI (Wacoal) Bra Size Guide & ConverterSupportive Japanese engineering with uplift panels, firm seams, and refined finishes.

Bring your size into AMPHI (Wacoal)'s structured Japanese support lines with advice on firm bands, uplift panels, and cup projection.

Start converting sizesRun the ABTF calculator first

AMPHI (Wacoal) size snapshot

Sizing system

Japanese centimeter band sizing (65–100) with incremental cup letters.

Band range

65–90 cm

Cup range

A–G

Best for

AMPHI (Wacoal) works well for petite frames and narrow torsos thanks to shorter wires, closer-set straps, and lighter padding.

  • Expect firmer bands at AMPHI (Wacoal); power mesh wings and tighter elastics may feel snug on the loosest hook.
  • AMPHI (Wacoal) cups balance average projection with rounded silhouettes that suit a wide range of shapes.
  • AMPHI (Wacoal) designs prioritize lift with laminated fabrics, strategic seams, and wider straps for secure support.

Convert your size into AMPHI (Wacoal)

Pick the brand and size you already wear. We pre-selected AMPHI (Wacoal) on the right so you can see the equivalent in one click.

Convert to AMPHI (Wacoal)

Size Guide

Enter your current bra size and select the brands you want to convert between. The converter will help you find your equivalent size in different brands.

Tips for Best Results:

  • Enter your size exactly as it appears on your current bra
  • Make sure to select both the source and target brands
  • Different brands may have slightly different sizing standards
  • Always try on bras when possible for the best fit

Fit callouts worth noting

Bands run firm out of the box

AMPHI (Wacoal) uses sturdy wings, shorter elastics, and supportive hardware that can feel tight until broken in.

Try this:

Start with your base size plus the sister size up in the band to compare tension before removing tags.

Cups follow average depth

AMPHI (Wacoal) cups balance coverage and projection, suiting most shapes once the band feels secure.

Try this:

Stick to your known cup, adjusting only if style-specific feedback suggests otherwise.

Support-focused details add stability

AMPHI (Wacoal) builds in inner slings, side boning, and reinforced straps that change how the bra lifts.

Try this:

Adjust straps slowly and ensure the inner sling sits flush; swap cup size only if tissue is wrinkling or compressing.

Try-on strategy playbook

Dial in your baseline size

  • Run the ABTF calculator or your trusted measurement routine first so the converter starts from fresh numbers.
  • Keep your most reliable bra size handy; the converter maps it directly into AMPHI (Wacoal) sizing.
  • Note the style you are targeting (plunge, balconette, wireless) so you can sanity-check the fit advice below.

Bracket tight bands before committing

  • Order your baseline band plus the sister size up (e.g., 32F and 34E) to test firmness.
  • Wear each bra on the loosest hook and inhale deeply; firm wings should stay level without pain.
  • Use easy return windows to compare band tension across at least two sizes before committing.

Leverage built-in support elements

  • Position inner slings and side panels smoothly before clasping.
  • Adjust straps incrementally; supportive bras respond quickly to small strap changes.
  • If boning digs when seated, compare with the sister size up or a softer cut.

Keep exploring

How to Measure Your Bra Size at Home

Step-by-step measuring tips before you add new pieces to your drawer.

Read more

Fit Check Wizard

Troubleshoot gaping, spillover, or band riding in minutes with guided diagnostics.

Read more

Sister Size Explorer

See every sister size combination when you need extra breathing room or cup depth.

Read more

Keyword prompts people use

Use or monitor these search phrases when you are researching AMPHI (Wacoal) sizing. They surface comparison guides, calculators, and real shopper feedback.

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Refresh your measurements

Accurate numbers keep your converter results honest. Grab a soft tape and follow the pro guide below before you submit that cart.

Professional Bra Measurement Guide

Essential Tools for Accurate Measurement

Required Equipment

  • Soft measuring tape (preferably in inches)
  • Non-padded bra or no bra
  • Full-length mirror
  • Notepad for recording measurements

Measurement Preparation

  • Stand straight with shoulders relaxed
  • Wear a non-padded bra or no bra
  • Ensure the measuring tape is parallel to the floor
  • Take measurements in a well-lit room

Step-by-Step Measurement Guide

Band Size Measurement

  1. Measure under your bust, where the bra band sits
  2. Keep the tape snug but not tight
  3. Ensure the tape is parallel to the floor
  4. Round to the nearest even number

Bust Size Measurement

  1. Measure around the fullest part of your bust
  2. Keep the tape parallel to the floor
  3. Don't pull the tape too tight
  4. Record the measurement in inches

Cup Size Calculation

  1. Subtract band size from bust measurement
  2. Use the difference to determine cup size
  3. Each inch difference represents one cup size
  4. Example: 1" = A, 2" = B, 3" = C, etc.

Professional Tips for Accurate Results

Common Measurement Mistakes

  • Measuring over a padded bra
  • Pulling the tape too tight
  • Not keeping the tape parallel to the floor
  • Measuring at the wrong position

Professional Recommendations

  • Take measurements at least twice for accuracy
  • Measure at the same time each day
  • Consider professional fitting for best results
  • Update measurements every 6 months

Frequently asked questions

Does AMPHI (Wacoal) run true to size?

Expect a firm fit. AMPHI (Wacoal) bands feel snug out of the box, so compare your base band with the next size up before settling.

What if I am between band sizes at AMPHI (Wacoal)?

Order your measured band and the next width up with the sister cup so you can choose a snug or comfortable clasp (e.g., 34G and 36FF).

Which AMPHI (Wacoal) styles work best for petite frames?

For petite frames, look at AMPHI (Wacoal)'s full-support bras with inner slings, wider straps, and either multi-part cups or posture panels.

Can I convert from other sizing systems into AMPHI (Wacoal)?

Yes. AMPHI (Wacoal) relies on centimeter bands (65–95). Use the converter to shift US/UK sizes into the correct cm band and cup index.