Understanding 34G Bra Size
A 34G bra size is considered a medium band size with a very large cup size. This size is perfect for people with an average frame and very large breast volume. Let's explore what makes this size unique and how to find the perfect fit.
Is 34G considered big or small?
Fast facts about 34G
- Snug 34 band with a 8-inch cup jump.
- Standing bust around 41.5–42.5 in keeps the cup filled.
- Share cup volume with 36F for band tweaks.
- Always scoop-and-swoop and check the gore for a flat anchor.
How 34G is measured
Band fit
Aim for a snug 32.5–33.5 in underbust so the 34 band stays level without digging.
Cup depth
Standing bust in the 41.5–42.5 in range keeps roughly a 8-inch cup difference.
Support focus
Choose firm wings, fully adjustable straps, and swap sister sizes if the band shifts during wear.
34G bust size in inches
| Measurement | Typical inches | How to capture it |
|---|---|---|
| Snug band (ribcage) | 32.5–33.5 in | Measure firmly under the bust on an exhale, then round to the band label. |
| Standing bust | 41.5–42.5 in | Keep the tape level across the fullest point while standing tall. |
| Band-to-bust difference | ≈8 in | Subtract your snug band from the standing bust to confirm cup depth. |
| Approx. cup depth | 9.5–10.5 in | Measure from the underwire root to the apex on a well-fitting bra. |
34G bust size in centimeters
| Measurement | Typical cm | How to capture it |
|---|---|---|
| Snug band (ribcage) | 82.6–85.1 cm | Measure firmly beneath the bust, then map it to EU/FR/JP band labels. |
| Standing bust | 105.4–108 cm | Keep the tape level across the fullest point without compressing tissue. |
| Band-to-bust difference | ≈20.3 cm | Use the difference to double-check your metric cup depth. |
| Approx. cup depth | 24.1–26.7 cm | Trace from underbust to apex on a supportive bra to check projection. |
- Falls inside the 32-36 band range most people wear, giving a familiar fit baseline.
- Requires strategic support and can appear dramatic without the right bra construction.
- Monitor posture and band tension—small shifts change how the size looks.
- Try sister sizes 36F to fine-tune band tension.
Quick reference for 34G
- 34G ≈ band 34 label with a 8-inch cup step.
- Projected bust lands around 41.5–42.5 in.
- Use the calculator to convert this size across US/UK/EU/JP systems.
Ranges are approximations—double-check your own measurements for precision.
34G across popular sizing systems
Match US 34G to the most searched regional labels without leaving this guide.
Currently showing the United States (US) label — copy 34G to match tags instantly.
United States (US)
34G
United Kingdom (UK)
34F
Europe (EU)
75H
France (FR)
90H
Japan (JP)
80H
Australia (AU)
12G
Quick converter
Switch systems and copy the exact label for checkout forms or bra tags.
Need step-by-step help? Jump into the dedicated guides below for measurement nuances and shopping tips.
Perfect For
- Average frames
- Medium ribcages
- Very large breast volume
- Maximum support needs
Recommended Styles
T-Shirt Bras
Perfect for everyday wear under fitted clothing
- Seamless
- Molded cups
- Comfortable
Balconette Bras
Great for creating a natural lift and shape
- Wide-set straps
- Lower cut cups
- Enhancing
Plunge Bras
Ideal for low-cut tops and dresses
- Deep V-neck
- Minimal coverage
- Versatile
How 34G tends to look
34G pairs a 34-band with a 8-inch cup jump, so the silhouette changes with your frame and bra style.
- Keep 36F in mind—they share cup volume while tweaking the band.
- Shape, strap placement, and fabric choice all influence whether the size looks subtle or bold.
34G compared with nearby sizes
Quick reference when you’re deciding whether to change the band, the cup, or both.
- 34F is one cup shallower—switch when 34G wrinkles along the neckline.
- 36F keep the same cup volume but tweak band tightness for comfort.
Sister size playbook
- Try 36F when you need tighter or looser band support.
Fit checks before you buy
When trying on 34G bras, look for these key fit indicators:
- The band should fit snugly around your ribcage
- Cups should fully contain your breasts without spillage
- Straps should stay in place without digging in
- The center gore should lie flat against your chest
- Keep the band parallel to the floor on the middle hook.
- Scoop and swoop tissue into the cups before checking the gore.
- Adjust straps for lift, then reassess comfort after an hour of wear.
Remember that fit can vary between brands and styles. Always try on bras before purchasing to ensure the perfect fit.
Common 34G questions
What size is 34G in other systems?
34G converts to 34F in UK sizes, 75H in EU, 90H in FR, 80H in JP, and 12G in AU.
What does 34G mean?
34G pairs a 34 band with a cup that is roughly 8 inches deeper than the band measurement.
Which sister sizes match 34G?
34G shares cup volume with 36F. Use them to tighten or relax the band.
How can I confirm this is my best fit?
Measure snug and standing bust, check for smooth cup edges, and ensure the band stays level after a few minutes of wear.
Check 34G with our tools
Measure with the calculator, compare sister sizes, and review the perception guide for styling tips.