How to calculate true packaging cost per order in India
Your true packaging cost per order is the carton, plus tape and void fill, plus any courier bag, plus GST you cannot reclaim, plus the marketplace or courier fee driven by volumetric weight — not the pack MRP alone.
Updated 11 Sept 2026 · PackWorks By Velun, Karnal
The five lines that matter
Purchase officers compare box price. Operators lose money on the fee. Add these on one spreadsheet row per SKU.
| Line | Where it shows up | Typical mistake |
|---|---|---|
| Carton / mailer / bag | PackWorks pack ÷ pieces | Ignoring pack qty vs piece price |
| Tape + labels | Metres per parcel | Using 3-inch tape on every tiny mailer |
| Void fill | Paper / bubble / shred | Filling a huge box instead of downsizing |
| GST | Invoice | Forgetting ITC if you are registered |
| Volumetric / weight fee | Amazon, Flipkart, courier | Oversized leftover carton |
Worked mini-example
SKU ships at 400 g. Option A: leftover 12 × 10 × 8 inch 3-ply at ₹8/pc + ₹2 tape. Volumetric ≈ 3.1 kg → fee dominates. Option B: 8 × 6 × 4 inch at ₹5/pc + ₹2 tape. Volumetric ≈ 0.63 kg. Option B wins even if the small box is not the cheapest carton on the shelf — the fee gap is larger than the box gap.
How to cost a PackWorks pack
Take the ex-GST pack price, divide by pieces in the pack, add GST if you cannot claim ITC, then add consumables. Re-run the marketplace fee preview with the outer size of the closed carton. Keep two nearby sizes so peak days do not overflow into a huge emergency box that wrecks the average.
- Cost the fee with outer cm ÷ 5000, not with inner inches
- Registered GST buyers: net carton cost is often ex-GST after ITC
- Colour mailers cost more per piece — budget them only on SKUs that photograph
- Custom print amortise plate and MOQ across expected months of sell-through
When “more expensive” packaging is cheaper
A fitted mailer that cuts damage claims, or a 5-ply that stops monsoon crush on a ₹2,000 SKU, beats a ₹2 saving on board. Put damage rate and RTO next to the packaging line once a quarter — that is the real P&L.