Tote Bag Pattern Generator

Free utility for creating custom tote bag patterns

The utility below was inspired by this tutorial. I knew I'd forget the dimensions if I tried to make a tote bag later, so I created this simple tool to generate a custom pattern based on a desired bag size. It'll get you close but you may need to make some adjustments based on your fabric and sewing style.

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Bag Specifications

FINISHED DIMENSIONS

WIDTH (inches)

HEIGHT (inches)

DEPTH (inches)

SEAM ALLOWANCE

inches

Common values: 0.25", 0.5", 0.625" (5/8"), 0.75"

ROLL TOP SEAM HEIGHT

INCLUDE

inches

Pattern Preview

Unified Pattern Total Size: 24.00" W × 36.00" H

24.0" Total Width

36.0" Total Height

15.0"

SIDE
24.0" × 15.0"

3.5"

6.0"

BOTTOM
17.0" × 6.0"

SIDE
24.0" × 15.0"

Pattern Calculations:
Side Width: 17.00" + 2×(6/2 + 0.5") = 24.00"
Side Height: 14" + 1" = 15.00"
Bottom Width: 16" + 2×0.5" = 17.00"
Bottom Depth: 6"

FINISHED BAG SIZE:
16" W × 14" H × 6" D

Construction Notes

• Cut ONE unified pattern piece from your material (includes both sides and bottom)
• Seam allowances are included in all pattern dimensions
• Fold along the edges where the bottom section meets the side sections
• Sew the vertical seams on each end to create the bag structure
• Use French seams or flat-felled seams for durability
• Roll top allowance added to side height - fold and stitch to create finished edge