What is desi and how is it calculated?
Desi (volumetric unit) is the volumetric weight unit that carriers use to price bulky parcels. The formula is simple:
Desi = width (cm) × length (cm) × height (cm) / 3000
Example: for a box measuring 40 × 30 × 20 cm, 40 × 30 × 20 = 24,000; 24,000 / 3000 = 8 desi. The dimensions are not the product's but the outer dimensions of the packaged parcel; fractional results are rounded up to the next whole number (7.2 desi → charged as 8 desi).
Desi or kilogram: the chargeable weight
When the carrier weighs the parcel, it looks at two values: volumetric weight (desi) and actual weight (kg). The fee is set by whichever is greater — this is called the chargeable weight. For light but bulky products such as a pillow, the desi decides; for small but heavy products such as a book or metal part, the kilogram does. For example, a parcel that is 2 desi but weighs 5 kg is charged at 5 desi/kg on the tariff.
2026 Trendyol contracted shipping prices
Selected tiers from Trendyol's official contracted shipping PDF effective 13 July 2026 (VAT excluded; postal service fee and SMS included):
| Desi/kg | TEX | PTT | Aras | Sürat | Yurtiçi |
|---|---|---|---|---|---|
| 0–2 | 77.54 TL | 77.54 TL | 88.96 TL | 95.54 TL | 121.75 TL |
| 5 | 107.98 TL | 100.55 TL | 117.85 TL | 122.41 TL | 157.16 TL |
| 10 | 153.47 TL | 157.26 TL | 164.23 TL | 170.86 TL | 214.59 TL |
| 20 | 236.21 TL | 239.76 TL | 252.09 TL | 267.46 TL | 338.15 TL |
| 30 | 328.88 TL | 322.78 TL | 371.34 TL | 374.15 TL | 520.70 TL |
2026 Trendyol shipping brackets (barem)
For orders of 0-199.99 TL and 200-349.99 TL at no more than 10 desi, bracket support replaces the full desi tariff with a fixed seller contribution. The advantageous model is for orders that meet the one-day lead-time, Fast Delivery or Ship Today condition; orders that do not meet those conditions use the higher standard model. The amounts below apply to orders moving to shipped status from 10 August 2026 and all exclude VAT; multiply by 1.20 for the invoiced amount.
Advantageous bracket amounts (VAT excluded)
| Order value | TEX / PTT | Aras | Sürat | Kolay Gelsin | DHL | Yurtiçi |
|---|---|---|---|---|---|---|
| 0 – 199.99 TL | 38.74 TL | 48.33 TL | 54.58 TL | 55.83 TL | 57.08 TL | 83.33 TL |
| 200 – 349.99 TL | 70.41 TL | 79.16 TL | 85.41 TL | 86.66 TL | 87.91 TL | 113.33 TL |
Standard bracket amounts (VAT excluded)
| Order value | TEX / PTT | Aras | Sürat | Kolay Gelsin | DHL | Yurtiçi |
|---|---|---|---|---|---|---|
| 0 – 199.99 TL | 73.33 TL | 80.83 TL | 87.08 TL | 88.33 TL | 89.58 TL | 114.16 TL |
| 200 – 349.99 TL | 78.74 TL | 86.24 TL | 92.49 TL | 93.74 TL | 94.99 TL | 119.16 TL |
Example: the advantageous TEX/PTT amount for a 180 TL order is 38.74 TL + 7.75 TL VAT = 46.49 TL. At 350 TL or more, or above 10 desi at any order value, the full desi-based contracted tariff applies; carriers such as CEVA and Horoz are not part of bracket support. Shipping is one of the two or three largest deductions per sale; you can see its combined impact together with commission and withholding tax in the Trendyol profit calculator, and how it hits your payout in the payout calculator.
Source note: both tariffs come from Trendyol itself. The full desi tariff is the official contracted shipping PDF (effective 13 July 2026); the advantageous and standard bracket tables are from the Trendyol Seller Information Center article "Kargo Baremi Uygulaması" (effective 10 August 2026). Verify the final charge in your seller panel.
4 ways to lower your shipping cost
- Shrink the box: Desi is calculated from the parcel size. A box that fits the product with less filler often means dropping to a lower desi tier — even going from 8 desi to 7 makes a difference on every shipment.
- Use the bracket thresholds in your pricing: Moving a 195 TL basket to 200 TL changes the bracket; moving a 340 TL basket to 350 TL switches it to the full desi tariff. Factor those jumps in the shipping contribution into your pricing.
- Pick the carrier by desi: The cheapest carrier is not the same at every tier: TEX/PTT at 0-2 desi, TEX/Aras around 10 desi, PTT at 30 desi. The calculator above ranks them by your tier.
- Declare the dimensions correctly: The carrier measures the parcel itself; under-declaring leads to a later adjustment invoice, over-declaring creates needless cost. Undeliverable shipments also incur an extra charge of 25-100% of the shipping fee — don't skip address verification.