Volumetric Weight & Courier Rate Comparer
Enter parcel sizes and your own courier rate cards to see the chargeable weight and the cheapest option for each order, plus which box sizes push you into a higher band.
Economics
- Pricing example
- $12 lifetime (free: 2 couriers, 10 parcels per batch)
- Daily math
- 2 sales a day x $12 = $24/day.
- Target if you hit the daily math
- Target: $550 - $750 / month if the daily math is hit
Audience and urgency
Audience: Small online sellers in Malaysia and SEA who ship with several couriers, including to East Malaysia.
Urgency: Couriers charge on whichever is higher, actual or volumetric weight, using different divisors and zone rates. Sellers who pick a box that's slightly too big pay for a higher weight band on every order without noticing.
MVP scope
- ✓ Courier rate cards the seller enters: weight bands, zones (e.g. Peninsular, East Malaysia), volumetric divisor
- ✓ Parcel input (L x W x H, actual weight) showing chargeable weight and price per courier, cheapest highlighted
- ✓ Box presets and a 'next band' warning showing how much smaller the box needs to be
- ✓ Bulk CSV of orders with a per-order cheapest courier
- ✓ Data stays in the browser; Stripe Payment Link unlocks unlimited couriers and rows
Omitted features
- - Do NOT hard-code courier rates; sellers enter or import their own
- - Do NOT connect to courier APIs or book shipments in Day 1
- - Do NOT claim savings figures
Suggested stack
- Frontend
- React + Vite + Tailwind CSS
- Backend or API
- None: browser-only with localStorage
- Payments
- Stripe Payment Links (MYR)
- Hosting
- Vercel or Netlify (free tier to start)
Repository metadata
- Blueprint ID
volumetric-shipping-calculator- Category ID
ecommerce_tools- Monetization ID
one_time
Day-one distribution
Channels
- Malaysian online-seller Facebook groups
- TikTok/Reels explaining volumetric weight with one box
- Seller Telegram groups
Reddit strategy
If posting in r/ecommerce, share a plain explanation of volumetric weight with the free calculator.
Cold outreach or directory hook
Offer free licences to seller-education channels for a walkthrough.
Search keywords
volumetric weight calculator malaysia, courier rate comparison malaysia, chargeable weight calculator
One-shot master prompt
Build a browser-only "Courier Rate Comparer" in React with Tailwind CSS. Core requirements: 1. Courier setup: name, volumetric divisor (e.g. 5000 or 6000), zones, and rate table per zone (first kg + each additional kg, or weight-band prices). Import/export rate cards as JSON or CSV. Store in localStorage. 2. Single parcel calculator: dimensions (cm), actual weight (kg), zone; show volumetric weight, chargeable weight (higher of the two, rounded per courier rule), price per courier, cheapest highlighted. 3. Box presets and a "band warning": if chargeable weight is volumetric, show the dimension reduction needed to drop to the previous band. 4. Bulk mode: CSV of orders (order id, dimensions, weight, zone) -> table with price per courier and cheapest, exportable. 5. Free: 2 couriers and 10 rows; Stripe Payment Link ($12) unlocks unlimited via a licence code. Show a note to keep rate cards up to date.
Comparable products
Published 2026-10-08.