What Determines Cargo Cost? (The Desi Logic)
In domestic shipping, carriers usually price not by actual weight but by desi. Desi represents the volume a package occupies and is calculated with the formula (W×L×H)/3000. The carrier compares the package's actual weight with its calculated volumetric weight (desi) and bills whichever is larger. So a 500-gram but huge box is priced by its volume, not its weight. Every carrier has a "desi tariff" table that rises in steps: one price up to 1 desi, another up to 2 desi, and so on. To see your true cost you first need to know the average desi of your products; you can work this out instantly by entering your package dimensions. Without clarifying this calculation you cannot soundly compare any cargo quote.
Of two items of equal weight, the bulkier one ships more expensively. For light but bulky items the bill is based on desi; that is why shrinking the packaging directly lowers cargo cost.
Main Cargo Carriers and Their Strengths
Turkey has many strong cargo carriers for e-commerce shipments, and each stands out in a different area. Some are preferred for branch density and brand recognition; some for broad geographic coverage and reach into remote regions; others for e-commerce integrations and competitive desi tariffs. The point is not "which is best" but "which fits your shipment profile": are you sending small, light items or large, high-desi ones; are most of your customers in big cities or rural areas; is delivery speed or unit cost more critical for you. So rather than tying yourself to a single carrier, the healthiest approach is to get quotes from several and choose by shipment type. When you work with multiple carriers, seeing which cargo carried each shipment at what cost in one place makes your job easier; Ecomiro's cargo management gathers all cargo movements and costs in a single panel.
| Carrier | Area of strength | Typical use |
|---|---|---|
| Aras Kargo | Widespread branch network | General individual + corporate shipments |
| Yurtiçi Kargo | Broad coverage | High-volume e-commerce |
| MNG Kargo | E-commerce integrations | Marketplace and store shipments |
| PTT Kargo | Widest geographic reach | Rural/remote regions + micro-export |
| Sürat Kargo | Competitive desi tariffs | Cost-focused shipments |
| UPS / global | International delivery | E-export and cross-border |
The table summarizes where carriers generally stand out; exact performance varies by region, period and your agreement. The goal is not to point to any carrier, but to show which criteria to choose by.
Marketplace Contracted Cargo (Trendyol Express, HepsiJET)
If you sell on a marketplace, you usually use the platform's own contracted cargo. Trendyol shipments largely move via Trendyol Express and contracted carriers; Hepsiburada shipments move via HepsiJET. The advantage of this model is that the cargo process is integrated into the platform, the label is generated automatically and the desi-based tariff is defined in the system; the disadvantage is reduced freedom to choose the carrier and tariff at will. In marketplace cargo the fee is again calculated in desi-based steps and is passed to the seller below a certain basket amount. The most important thing to check here is whether the desi/cargo charge applied by the system matches the actual dimensions of the package you sent; an incorrect desi measurement can lead to overcharging. To catch these deviations you need to track each shipment's cargo cost regularly; Ecomiro reports these items at the order level.
Contracted Cargo and Tariff Negotiation
Cargo carriers offer corporate contracted tariffs that are far more favorable than the individual "single shipment" price. The main factor setting this tariff is monthly shipment volume: the more and the more regularly you ship, the lower your unit desi cost. When making an agreement you should look not only at the base desi price but also at extra service charges (cash on delivery, insurance, return cargo), remote-region surcharges and invoicing terms. For sellers with many shipments, cargo integrators are also an option: from a single panel they let you reach several carriers and send each shipment with the most suitable one. Whichever path you choose, you only learn whether the agreement is truly advantageous by testing it with your own shipment data; a tariff that looks cheap in theory can turn out expensive if it does not fit your desi profile.
The key to a contracted tariff is volume: as your monthly shipment count rises, your unit desi price falls. A steady, predictable shipment volume is the strongest bargaining chip on the table.
Ways to Lower Cargo Cost
Lowering cargo cost usually comes not from a single move but from the sum of several small improvements. The fastest gain comes from packaging: every needless centimeter in the box around the product enlarges desi and therefore the bill. Standardizing the right box sizes helps with both desi optimization and damage prevention. The second gain is diversifying carriers by shipment type; the best carrier for a large-desi item and for a small parcel may differ. The third is growing volume to improve the contracted tariff. Finally, declaring desi accurately both prevents overcharging and reduces potential disputes. The product packaging guide, where we cover packaging and desi optimization in depth, is a good starting point on this.
- Shrink the packaging — remove needless empty space; as desi drops, so does the bill
- Pick the right box size — optimize volume with a standard box set per product
- Get quotes from several carriers — use the most suitable one by shipment type
- Increase volume — pull the contracted tariff down with regular shipping
- Declare desi accurately — wrong measurement means overcharging or disputes
Choosing the Right Carrier: Decision Criteria
The right cargo decision is made by weighing four criteria against your business. First, cost: which carrier offers a better tariff for the average desi of your products. Second, coverage and speed: how fast and how smoothly delivery reaches the regions where your customers are. Third, operational ease: automatic label generation, tracking integration and the practicality of the return process. Fourth, service quality: the loss/damage rate and the customer experience. You cannot expect a single carrier to be best at all of these; that is why many sellers work with several carriers by shipment type. The important thing is to decide with data, not guesswork: measure and regularly compare each shipment's cost, delivery time and problem rate. Ecomiro's cargo and order modules gather this data in one panel; if you like, you can also get information and support from our team for a setup suited to your own shipment profile.