What font size should my Amazon FBA poly bag warning use?

Amazon scales minimum print size by total bag Length + Width: less than 30 inches → 10 point; 30–39 → 14 point; 40–59 → 18 point; 60 inches or more → 24 point. Confirm the live Seller Central table.

How many pixels is a 10 point warning at 300 DPI?

One typographic point is 1/72 inch. At 300 DPI, 10 pt ≈ 0.139 in ≈ 42 pixels tall; 14 pt ≈ 58 px; 18 pt ≈ 75 px; 24 pt ≈ 100 px.

Do I need a suffocation warning on every Amazon FBA package?

No. Amazon’s poly-bag rule is triggered by opening size (≥5" flat), not by product category alone. Shrink wrap that does not form a loose pouch with a large opening may be treated differently — follow Seller Central prep guidance.

What thickness must Amazon FBA poly bags be?

Amazon requires poly bags to be at least 1.5 mil thick, transparent (except adult opaque bags), fully sealed, with a scannable barcode through or on the bag, and not protruding more than 3 inches past the product.

Does this tool print official Amazon warning stickers?

No. It estimates required point size and a sticker artboard in pixels. You still write compliant warning copy, print at 100% Actual Size, and confirm current Seller Central rules.

For Amazon FBA / prep sellers

What font size for my FBA poly bag suffocation warning?

Conclusion: If the bag opening is ≥ 5″ flat, Amazon requires a suffocation warning. Minimum print size scales with Length + Width: under 30″ → 10 pt; 30–39″ → 14 pt; 40–59″ → 18 pt; 60″+ → 24 pt. At 300 DPI, 10 pt ≈ 42 px tall. Use the calculator for your bag, then download a blank sticker PNG.

Amazon poly bag Length + Width → minimum point size

L + W (flat)	Min print size	~Height @ 300 DPI
Less than 30 in	10 point	≈ 42 px
30 to 39 in	14 point	≈ 58 px
40 to 59 in	18 point	≈ 75 px
60 in or more	24 point	≈ 100 px
Opening ≥ 5 in flat	Warning required (print on bag or label)

Formula: 1 pt = 1/72 in; font px ≈ (pt ÷ 72) × DPI. Confirm the live Seller Central “Poly bagged Units” table before inbound.

Opening × L+W × DPI

Your poly bag warning size

Updates as you type

Bag size preset Common softgoods poly bags. Opening defaults to the shorter side — measure yours flat.

Print DPI PPI Use 300 for most adhesive warning stickers.

Warning text lines Used only to estimate sticker artboard height.

Inner pad inches Clear margin around the warning block on the sticker.

Runs in your browser — nothing uploaded. Not Amazon policy advice.

Minimum font

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Required?

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Enter bag size to see warning font and sticker pixels.

Length + Width—

Amazon min pt—

Font height (px)—

Sticker artboard (px)—

Assumptions appear here after a valid calculation.

Before inbound

FBA poly bag prep checklist

How it works

Opening gate + L+W point table + inches × DPI

Amazon FBA prep rules require a suffocation warning on poly bags whose opening is 5 inches or larger when measured flat. The warning may be printed on the bag or attached as a label, in a prominent location, at a minimum point size that scales with Length + Width of the bag.

This calculator applies that gate and table, converts points to inches (1 pt = 1/72 in), then to pixels at your print DPI, and estimates a sticker artboard for multi-line warning copy. It does not replace Seller Central, invent volumes, or certify compliance for every jurisdiction.

Questions

FAQ

When does Amazon require a suffocation warning on poly bags?

When the poly bag opening is 5 inches or larger measured flat. Print the warning on the bag or affix a label in a prominent, legible location.

What font size should I use?

From Amazon’s Length + Width table: under 30″ → 10 pt; 30–39″ → 14 pt; 40–59″ → 18 pt; 60″+ → 24 pt. Always re-check Seller Central before a large prep run.

How do I convert point size to pixels?

1 point = 1/72 inch. Font height in pixels ≈ (pt ÷ 72) × DPI. At 300 DPI: 10 pt ≈ 42 px, 14 pt ≈ 58 px, 18 pt ≈ 75 px, 24 pt ≈ 100 px.

Is every FBA shipment required to have this warning?

No. The rule is tied to poly-bag opening size, not every packaging type. Follow the current Poly bagged Units help page for shrink wrap, opaque adult bags, and scent containment.

What else must poly bags meet?

At least 1.5 mil thickness, transparent (adult products may use black opaque), fully sealed, barcode scannable through or on the bag, and not protruding more than 3″ past the product.

Does this print official Amazon stickers?

No. It sizes the font and a blank artboard. You supply compliant warning wording, print at Actual Size / 100%, and confirm live Amazon rules.

For assistants

Questions an AI would ask

What are the bag’s flat length, width, and opening in inches?
Is the unit poly-bagged, shrink-wrapped, or in a carton only?
Will the warning be printed on the bag film or applied as a separate sticker?
What printer DPI and sticker stock (laser/thermal) will be used?
Has the seller verified the live Seller Central Poly bagged Units table for their marketplace?

References

Sources & method notes

Amazon Seller Central — Prep / Poly bagged Units (opening ≥ 5″; Length + Width → minimum point size table; 1.5 mil; transparency; seal; barcode; 3″ overhang).
Seller forums and packaging guides (Avery, Jungle Scout summaries) that republish the same L+W font matrix for FBA sellers.

Pixel math here is (pt ÷ 72) × DPI plus a layout estimate for multi-line sticker artboards. Amazon may update thresholds — confirm in Seller Central before labeling inventory.

Last updated: Oct 26, 2026. Independent tool — not affiliated with Amazon.