Best Pick
eBayeBay Brand Central
3” eBay Sticker – Red, Blue, Green and Yellow — 500 Stickers
9″ × 6″ × 4″
+$12.40 USPS Ground Advantage · 3 lb billed
$0.09
each
pack of 500 · $45.00
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Cheapest 9×6×4 padded mailer
Compare real eBay prices for 9×6×4 shipping boxes with DIM-weight-aware shipping estimates.
Live eBay listings — sorted by cost per useful box
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eBay
100 9x6x4 Cardboard Paper Boxes Mailing Packing Shipping Box Corrugated Carton
9″ × 6″ × 4″
+$12.40 USPS Ground Advantage · 3 lb billed
$0.55
each
pack of 100 · $55.00
eBayeBay Brand Central
Comic Book Mailer Filler Pads — 50 Corrugated Sheets
9″ × 6″ × 4″
+$12.40 USPS Ground Advantage · 3 lb billed
$0.48
each
pack of 50 · $24.00
eBay
White Shipping Boxes Cardboard Corrugated Mailing Boxes Packing 9X6X4'' 100 Pack
9″ × 6″ × 4″
+$12.40 USPS Ground Advantage · 3 lb billed
$0.70
each
pack of 100 · $70.00
eBay
GRAINGER APPROVED 11K616 PK 25 Shipping Box,9x6x4 in 11K616
9″ × 6″ × 4″
+$12.40 USPS Ground Advantage · 3 lb billed
$0.38
each
pack of 25 · $9.50
eBay
75 Pack 6 x 9 Inch Metallic Bubble Mailers, Self Seal Bags for Shipping Postage
6″ × 9″ × 0″
+$12.40 USPS Ground Advantage · 3 lb billed
$0.69
each
pack of 75 · $51.75
Showing 6 of 28 real listings. Want all of them with custom quantity and weight? Search now →
What fits in a 9×6×4 box
A 9 × 6 × 4 inch box holds 216 cubic inches (0.13 cu ft) of interior space, putting it in the small-category. It's a popular choice for shipping items like small electronics, jewelry boxes, phone cases — things that fit comfortably within those dimensions while leaving room for protective padding. Most sellers list it in bulk packs of 25, 50, or 100, which brings the per-box cost under $1 for the cheapest options.
Shipping math for this size
Shipping cost for this size depends heavily on dimensional weight. For a 9×6×4 box, UPS and FedEx Ground compute a DIM weight of 2 lbs using their 139 divisor, while USPS Ground Advantage uses a 166 divisor, giving 2 lbs. Carriers bill whichever is greater — your actual weight or the DIM weight. The two carriers come out about the same for this volume, which is why our search results factor in DIM-weight automatically instead of just showing sticker prices. For very light items, a USPS Priority Flat Rate envelope or small box may beat buying this size outright — we flag that when it applies.
How to pick the right pack size
When buying a 9×6×4 box, the biggest cost lever isn't which retailer you pick — it's which pack size you commit to. A 100-pack typically costs 2-3× more than a 25-pack but brings the per-unit cost down by 40-60%. Our ranking is based on *cost per useful box*, which gives bonus boxes partial credit — so a 100-pack can still win for single-box needs if the per-unit price is low enough, but a 25-pack often ranks higher when you only need a few. Every listing below links to a real eBay product page; we don't show placeholder results.
Search with your own dimensions
Pre-filled with 9×6×4. Adjust weight, quantity, or size as needed — we'll re-rank for your exact scenario.