Calculator
No prices are stored here. Get the line price at kakobuy.com/tools/estimate for your chargeable weight.
The three numbers that decide the bill
KakoBuy's help centre describes the cost of an order as the item, the seller's delivery to the warehouse, international shipping and a customs declaration cost of "generally RMB 8.00" per parcel; it states that it charges no handling fee. Only international shipping moves much, and it depends on three things you control: which line you pick, where it goes and the chargeable weight.
Chargeable weight is where people get caught. KakoBuy's volume-weight article says some lines compare the actual weight with length × width × height divided by 5,000, 6,000, 7,000 or 8,000 and bill whichever is larger. A 1.2 kg jacket in a 40 × 30 × 15 cm box works out at 3.0 kg on a 6,000 divisor, two and a half times its real weight. That is why puffers and other bulky winter rows cost more to send than their weight suggests, and why the ¥20 vacuum bag can pay for itself.
Example, Germany, 1,200 g in a 40 × 30 × 15 cm box (hypothetical parcel):
Volumetric weight = 40 × 30 × 15 ÷ 6,000 = 3.00 kg → chargeable 3.00 kg on a volume-billed line
On a line billed by actual weight: 1.20 kg → enter that line's price for 1.2 kg
Plus declaration ¥8 × 0.14 = $1.12, plus KakoBuy's EU €3 ≈ $3.30 at the tool's assumed US$1.10 per €1, if not a duty-free line
Know the chargeable weight before you choose a line; it can matter more than the per-kilo price.
Reference: cheapest 1 kg line per country on 12 October 2026
We read KakoBuy's estimator on 12 October 2026 for five countries at 1,000 g, actual weight, no box size and no goods type. The first lines it listed are below; the full tables for 500 g, 1 kg and 2 kg are on each country page. These are not built into the calculator.
| Destination | Lowest quote | Line | Listed transit | Fastest listed |
|---|---|---|---|---|
| United States | $38.07 | Cosmetics Air Express (Battery, Liquid) | 11–17 days | HK UPS, $49.79, 2–6 days |
| Germany | $23.70 | Europe DHL Line (Express Line) | 8–12 days | Europe Tariffless Line -K, $24.67, 7–12 days |
| Spain | $26.89 | Europe Tariffless Line -K | 9–15 days | EU Special Line - Spain, $33.40, 7–12 days |
| United Kingdom | $16.29 | UK HG dedicated line PT | 7–19 days | UK Line-B, $19.90, 5–12 days |
| Canada | $20.24 | Canada Sea Packet-F | 35–45 days | Canada HD Line-electrified, $26.61, 4–10 days |
Two patterns stand out. The UK was the cheapest destination in this snapshot by a wide margin, and the US the most expensive, partly because the lines listed first for the US are tax-free or battery-friendly routes. In Canada the cheapest option is a sea packet of five to six weeks; the cheapest line promising under three weeks at 1 kg was Canada HD Line at $23.49 (7–18 days). The KakoBuy shipping guide explains the line types.
Use the snapshot to sanity-check a quote; if today's price is far off, recheck the weight or the line, not the calculator.
How to get the line price to paste in
- Weigh or estimate the parcel. Add the item weights shown in warehouse photos and allow for packing. For an exact figure, KakoBuy's pre-packing service (¥18 per time) packs the parcel and reports the weight before you pay shipping.
- Open the estimator at kakobuy.com/tools/estimate, choose your country and enter the weight; add box size if you know it, since volume-billed lines need it.
- Pick a line that accepts your goods: batteries need a line marked electrified or battery accepted, perfume a line that takes liquids. Our perfume rows guide lists the ones we saw.
- Copy the price into the calculator, set the destination and press Calculate.
Two minutes on the estimator plus this calculator beats guessing from a sheet's "shipping included" note.
What the calculator leaves out
It does not add item prices, the seller's domestic freight, value-added services such as ¥2 photos, or optional Kako Insurance; see KakoBuy fees for those lines. It does not compute import VAT or duty, because those depend on the contents and declared value; the note under each result says what your country charges, and the duty-free lines guide explains which lines include them. Coupons and KakoBuy's shipping subsidy weeks also come off later, at payment.
Add the result to the shipping columns of the haul tracker CSV so you can split the cost per item. If you'd rather hand the whole job over, scan our WhatsApp QR on the contact page for one delivered price and pay per order.
The calculator answers "what will this parcel be billed on"; the estimator answers "how much per line"; you need both.
Questions buyers ask
Why doesn't the calculator just show KakoBuy's prices for me?
Because KakoBuy says third-party lines change their prices with the market and it notifies users of changes, so any price we stored would drift. The calculator handles the parts that stay fixed, chargeable weight, the declaration fee and the EU parcel charge, and you paste today's line price from kakobuy.com/tools/estimate. Our 12 October 2026 snapshot below is there to show the order of magnitude only.
Which divisor should I pick for volumetric weight?
Use the one the line states. KakoBuy's help article on volume weight lists 5,000, 6,000, 7,000 or 8,000 depending on the carrier, and several line descriptions in its estimator say length × width × height divided by 6,000, which is why 6,000 is the default here. A smaller divisor gives a heavier chargeable weight, so 5,000 is the cautious choice when a line says nothing.
Is the €3 EU charge on top of the line price?
KakoBuy's notice of 23 June 2026 says it charges €3 per parcel, whatever the number of product categories, and that the fee is added to the shipping cost when you submit the parcel. Its 1 July 2026 notice says EU duty-free lines already include duties. The calculator adds about $3.30 for Germany and Spain (at its editable default of US$1.10 per €1, our assumption) unless you tick the duty-free box; untick it if your quote already shows the fee.
How accurate is the result?
It is as accurate as the weight and quote you enter. The weight on the warehouse photo is the item weight, while the parcel adds packing, so a pre-packing service (¥18 per time, per KakoBuy's help centre) is the way to learn the real parcel weight before paying. Treat the result as a planning figure within a few dollars, then confirm the final number on KakoBuy's submission page.
Does the total include import VAT or duty?
Only KakoBuy's EU €3 parcel charge. Import VAT in Germany (19%) or Spain (21%), UK VAT on goods over £135, Canadian GST or HST above CAD 20, and US duty on lines that are not tax-free depend on what is inside the parcel and its declared value. The country notes under the result say which applies; our country pages work through full examples.