Free packaging tools
Work out your inside box dimensions, estimate carrier dimensional weight, or preview a custom box dieline — then send your size straight into a custom quote.
Box size calculatorWork out the inside size of your box from your product’s size and the room you want around it.Open free tool →Dimensional weight calculatorSee the dimensional (volumetric) weight carriers may bill for a box, and whether a smaller box would ship cheaper.Open free tool →Box dieline generator (SVG, no login)Free online custom box dieline generator with zero login or signup wall: preview and download 1:1 layered SVG templates at your inside size.Open free tool →Label size & unwind calculatorCalculate exact full-wrap, front-panel or lid label dimensions for jars, bottles and candles, plus roll unwind direction #1–#8.Open free tool →Paperboard GSM to pt converterConvert paperboard caliper between points (pt), GSM (g/m²), millimeters (mm) and microns for folding cartons, kraft and rigid boxes.Open free tool →Corrugated flute & ECT selectorMatch your packed box weight and shipping method to E-flute, B-flute, C-flute or double-wall corrugated board and 32–48 ECT ratings.Open free tool →Master carton & pallet calculatorCalculate master shipping carton dimensions, case weight and 48×40 GMA pallet Ti-Hi stacking loads from your single retail box size.Open free tool →Stand-up pouch size calculatorFind standard stand-up pouch width, height and bottom gusset dimensions for 2 oz, 4 oz, 8 oz, 12 oz, 1 lb, 2 lb and 5 lb fills.Open free tool →AI packaging DPI checkerCheck whether your Midjourney, ChatGPT, Gemini or Canva AI image has enough DPI and bleed for print — or send it for a free studio dieline rebuild.Open free tool →Holiday packaging cutoff calculatorCount backward from your target holiday, event or retail launch date to see your exact proof-approval cutoff for 10–14 day standard vs 4–5 day rush production.Open free tool →
1:1 SVG dieline template generators by box structure
Enter your inside length, width, and height to preview and download layered Cut & Fold SVG dielines for 14 ECMA and FEFCO packaging styles.
Mailer Box Dieline Template (FEFCO 0427)FEFCO 0427 · Roll-End Tuck Top (RETT)Open generator →Straight Tuck End (STE) Dieline TemplateECMA A20.20.03.01 · Straight Tuck End (STE)Open generator →Reverse Tuck End (RTE) Dieline TemplateECMA A21.20.03.01 · Reverse Tuck End (RTE)Open generator →Auto-Lock Bottom Box Dieline TemplateECMA A60.20 · Crash-Lock / Auto-Lock BottomOpen generator →1-2-3 Snap-Lock Bottom Dieline TemplateECMA A55.20 · 1-2-3 Interlocking BottomOpen generator →Seal End Carton Dieline TemplateECMA A10.10 · Full Overlap / Economy Seal EndOpen generator →RSC Shipping Box Dieline Template (FEFCO 0201)FEFCO 0201 · Regular Slotted Container (RSC)Open generator →Packaging Box Sleeve (Belly Band) Dieline TemplateOpen-Ended 4-Panel Packaging SleeveOpen generator →Slide Drawer / Tray & Sleeve Box Dieline TemplateMatched Inner Tray + Outer Slide SleeveOpen generator →4-Corner Open Packaging Tray Dieline Template4-Corner Folded Base TrayOpen generator →Two-Piece Lid & Base Box Dieline TemplateTelescoping Two-Piece Setup / Folding BoxOpen generator →Window Patching Carton Dieline TemplateStraight Tuck End + Front Die-Cut WindowOpen generator →Retail Hang Tab Box Dieline TemplateIntegrated Peg-Hook Hang Tab CartonOpen generator →Five-Panel Hanger Box Dieline TemplateReinforced Double-Fold 5th-Panel Peg CartonOpen generator →
Custom packaging built with these calculators
Open Packaging Engineering & Dieline Reference Library
All CubitPack calculators and structural dieline references are free to use in industrial design, graphic design, packaging science coursework, and 3PL fulfillment guides with no login wall or paywall. Each tool includes an interactive embed snippet so educators and resource authors can embed live calculators directly on course pages or technical articles.
Zero-Login SVG DielinesPreview flat cut-and-crease layouts for tuck-end cartons, lock-bottom boxes, and corrugated mailers in millimeters or inches.Open dieline tool →
56 Structural Box StylesCompare ECMA folding carton and FEFCO corrugated structures with engineering drawings, fold sequences, and sizing guides.Browse 56 box styles →
AI Concept to Press PrepLearn how raster AI packaging concepts are rebuilt onto flat vector dielines with CMYK/Pantone and foil separation layers.View AI-to-print guide →
Prefer our team to size your product and draw the production dieline for free?
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