Mylar bag sizes are usually described by how much product they hold — from small 1 oz (28 g) bags up to 1 lb (450 g) and bulk 5 lb pouches. Choosing the right size means matching the bag’s capacity and dimensions to your product’s weight and volume. This guide covers common mylar bag sizes, their typical dimensions, and how to pick the right one.
Key takeaways
- 1 oz, 1/8 lb, 1/4 lb, 1/2 lb and 1 lb are the most common sizes.
- Capacity depends on product density — coffee vs powder vs snacks differ.
- Stand-up pouches hold more and sit upright on shelves.
- We make any custom size with your logo, low minimums & fast US shipping.
Common mylar bag sizes by capacity
- 1 oz (28 g) — approx 3.5″ x 5″; samples, herbs, small snacks.
- 1/8 lb (57 g) — approx 4″ x 6″; coffee samples, edibles.
- 1/4 lb (113 g) — approx 5″ x 8″; coffee, tea, snacks.
- 1/2 lb (227 g) — approx 6″ x 9″; coffee, protein, granola.
- 1 lb (450 g) — approx 7″ x 11″; coffee beans, bulk snacks.
- 5 lb (2.3 kg) — approx 10″ x 16″; bulk storage.
Dimensions are a guide — actual capacity depends on how dense your product is and whether the bag is flat or a stand-up pouch with a gusset.
How to choose the right size
Weigh a typical unit of your product and pick a bag rated at or slightly above that weight. For airy products (chips, puffs) size up; for dense products (coffee, powders) the rated weight is usually accurate. Add headroom if you need a resealable zipper or heat-seal.
Styles & features
- Flat, stand-up pouch, gusseted or child-resistant
- Resealable zipper, tear notch, clear window
- 3, 5 & 7 mil thickness for barrier protection
- Full-color custom printing with your logo
Frequently Asked Questions
What size mylar bag holds 1 lb of coffee?
A bag around 7″ x 11″ (stand-up with gusset) typically holds 1 lb of whole-bean coffee.
What size is a 1 oz mylar bag?
About 3.5″ x 5″, ideal for samples, herbs and small snacks.
Can I get a custom size?
Yes — we make any custom mylar bag size with full-color printing, low minimums and fast US shipping.
Related: Custom Mylar Bags and our mylar bag thickness guide.
Shop mylar bags by size & type
Pick the exact capacity or style you need — every option below is customizable with full-color printing, resealable zippers and smell-proof material.
