Shipping bands: the bracket your parcel lands in and the cost of the next one
Look up the recorded fee for a chargeable weight and find the exact kilogram that pushes you into the next bracket.
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Run it
This parcel sits in 1–2 kg at £14.20
The next band starts at 2 kg and costs £5.40 more. Adding 0.21 kg would push you over it.
Use this number on Kakobuy| Band | Fee (GBP) | Step from previous |
|---|---|---|
| 0–0.5 kg | £6.40 | — |
| 0.5–1 kg | £9.80 | +£3.40 |
| 1–2 kg | £14.20 | +£4.40 |
| 2–3 kg | £19.60 | +£5.40 |
| 3–5 kg | £28.40 | +£8.80 |
| 5–10 kg | £46.00 | +£17.60 |
Formula and method
band = the row where kg > fromKg and kg ≤ toKg; fee = that row, in GBP; nextTriggerKg = next row fromKg; nextDelta = next row fee − current fee; no matching row → unverified, no interpolation
Rates last checked 2026-10-02. Where a band is missing we print Not verified rather than interpolating between neighbours.
Apply the formula on KakobuyThree worked cases
Case 1
- chargeableKg: 1.8
- line: GD-EUB
- destCountry: United Kingdom
Result: 1.8 kg falls in the 1.5–2 kg band at £12.70. The next band opens above 2 kg and closes at 3 kg, at £16.90, so the trigger is 2 kg and the step costs £4.20.
0.2 kg short of the boundary: the default parcel is already sitting inside the band it will be billed in.
Case 2
- chargeableKg: 1.5
- line: GD-EUB
- destCountry: United Kingdom
Result: 1.5 kg falls in the 1–1.5 kg band at £10.60, because a band includes its upper edge. The next band opens above 1.5 kg at £12.70, a step of £2.10.
Exactly on the line: the cheaper band applies, and the next 10 grams of chargeable weight costs £2.10.
Case 3
- chargeableKg: 4.4
- line: GD-EUB
- destCountry: United Kingdom
Result: 4.4 kg falls in the 3–5 kg band at £25.30. The next band opens above 5 kg and closes at 10 kg, at £46.30, so 0.6 kg more would cost £21.00.
The widest step in the table: nothing should be added to a 4.4 kg parcel without a reason worth £21.
How to read this gauge
Find the bracket before you find the price. Shipping on this platform is charged in weight bands, so the question is never "what does a kilogram cost" but "which row does my parcel land in, and how far is the next row". Enter the chargeable weight from the weight gauge and the table answers with the current fee, the trigger weight and the size of the step.
Three inputs decide the answer. The destination narrows the table to one country group; the line selects which recorded bands apply; the chargeable weight picks the row. Destination and line are labels here — the lookup itself runs on the weight — but they matter because a table belongs to one line and one destination, which is why the page refuses to fall back on the default line when you choose another. Battery and liquid flags only narrow which lines are available; they do not change a recorded fee.
The defaults are the pair we hold the most records for: GD-EUB into the United Kingdom at 1.8 kg. That weight is deliberately the same figure the landed-cost gauge starts from, so a reader can move between the two pages without re-entering anything and see the same parcel priced the same way. The band string in the default field is the recorded table itself — six rows from 0.5 kg to 10 kg (Recorded, reviewed 2026-10-02).
Read a band as a step. Chargeable weight rounds up to the half-kilogram step before it arrives here, so the fee jumps at the boundary rather than rising smoothly: 1.5 kg pays £10.60 in the 1–1.5 kg row, while 1.6 kg pays £12.70 in the row above. That £2.10 difference returns nothing — no extra service, no extra speed — so a parcel sitting just above a boundary is worth repacking, whereas one sitting just below it is not worth touching.
The three cases mark the three shapes of answer. At 1.8 kg the parcel is 0.2 kg inside the 1.5–2 kg band with a £4.20 step ahead of it, which is the ordinary case. At exactly 1.5 kg the cheaper row still applies because the band includes its upper edge, and the next step is £2.10 — the cheapest boundary on the table. At 4.4 kg the parcel is deep inside the 3–5 kg row with a £21.00 step ahead, and that is the number to carry into a packing decision.
Use the trigger as a budget line rather than a warning. If you are 0.3 kg under a boundary, adding a 0.4 kg item costs the full step, so price the item against the step before you decide. If you are 0.3 kg over a boundary, take weight out: a shoebox is often 0.2–0.3 kg, and removing one can drop a parcel into the cheaper row outright. Both moves belong before the parcel is sealed, because the chargeable weight fixed at packing is the weight the lookup will use.
Four edges stop the lookup. A chargeable weight of zero or less returns "Chargeable weight must be greater than 0." An empty table for the chosen line returns "Not verified for this line yet." A weight outside every recorded row returns "This weight sits outside the recorded bands — treat it as unverified." And anything above the last row is treated as a split, not a quote. The tool never interpolates between rows and never carries a fee across from another line.
Two things this page does not price. Customs charges are separate from the band fee: a consignment over £135 follows normal VAT and customs rules on importation, and nothing in the band table covers that (GOV.UK, checked 2026-10-06). Fuel surcharges and seasonal uplifts are also absent, because we have not verified how the lines apply them — take the band fee as the floor of the shipping cost and compare it against the quote on your parcel page.
Five questions about this gauge
- Why is the fee the same at 1.6 kg and 2.0 kg?
- Because the table is a step function, not a straight line per kilogram. Everything above 1.5 kg and up to and including 2.0 kg sits in one band at £12.70. Chargeable weight already rounds up to the half-kilogram step before it reaches this page, so 1.51 kg and 2.0 kg are genuinely the same bracket rather than a rounding accident.
- What does the next-trigger figure tell me?
- It names the first kilogram at which the bill changes. At 1.8 kg the current fee is £12.70 and the trigger sits above 2 kg, where the fee becomes £16.90 — a £4.20 step. Use it as a packing budget: if the item you want to add weighs 0.5 kg and the step is £21.00, leave it out.
- Where do the band figures come from?
- Our own rate snapshot: six lines, nine bands each, covering 0.5 kg to 10 kg with no gaps, last reviewed 2026-10-02 (Recorded). The page shows the snapshot the default line uses, and you should check the quote on your parcel page before you rely on a single figure. Where a line has no recorded row the tool refuses to interpolate.
- What happens when my weight falls outside the recorded table?
- The lookup stops and returns "This weight sits outside the recorded bands — treat it as unverified." That happens below 0.5 kg and above 10 kg on the default line. Nothing is extrapolated from the nearest row, because the difference between the 5 kg fee and the 10 kg fee is £21.00 and a straight-line guess across it would be wrong by pounds.
- Can I send a 12 kg parcel on one label?
- Our recorded table stops at 10 kg, and above that the tool asks you to split rather than guess. The practical test is financial: compare the fee for one 12 kg parcel against two parcels of 6 kg, then run the merge gauge on the pair. Splitting also caps the loss if one box goes missing, because each label carries its own claim.