We sell a coat on Vinted, we pack the parcel, we weigh it: 2.3 kg. The reflex is to go to Mondial Relay to estimate the price. And there, we come across a pricing grid divided into weight ranges, without always understanding what causes the shift from one tier to another. Calculating the price of a Mondial Relay parcel based on weight requires mastering a few simple mechanics, but these are rarely explained in detail.
Actual weight vs volumetric weight: the Mondial Relay peculiarity
With most express carriers (Colissimo, Chronopost, UPS), the price can be calculated based on volumetric weight. The principle: if your parcel is light but very bulky, it is assigned a fictitious weight based on its dimensions. You are shipping a sofa cushion weighing 400 g in a box measuring 60 cm on each side, and you pay as if the parcel weighed several kilos.
Mondial Relay charges based on actual weight, not on volumetric weight. This is a direct advantage for light but bulky items: clothing, textile accessories, small dismantled furniture. As long as you respect the size limits (maximum 150 cm in length, 120 cm on the longest side), it’s the scale that decides.
Specifically, to understand the price of a Mondial Relay parcel, you just need to weigh the packed parcel, including packaging and cushioning, and then refer to the corresponding range.
Mondial Relay weight ranges: where the tiers are
The Mondial Relay pricing grid works in tiers. You don’t pay by the gram, but by range. If your parcel weighs 2.3 kg or 2.9 kg, you are in the same range and pay the same price.
The thresholds that change the price
The common ranges for sending parcels in mainland France to a pickup point are as follows:
- Up to 500 g: the cheapest range, suitable for small items (jewelry, books, phone accessories)
- From 500 g to 1 kg, then from 1 kg to 3 kg, from 3 kg to 5 kg: each tier increases the price by a few euros
- Beyond 5 kg and up to 30 kg: the gaps between ranges narrow proportionally, but the total amount increases
The transition from one range to the next can sometimes depend on just a few grams. A parcel weighing 3.02 kg moves into the higher range, while 2.98 kg would have remained in the previous one. Weighing the packed parcel before confirming the shipment avoids this unpleasant surprise.
The ceiling changes depending on the delivery method
The maximum weight is not the same everywhere. At a pickup point or for home delivery, the ceiling is set at 30 kg. In a locker (automated locker), the limit drops to 25 kg. A parcel weighing 28 kg cannot be dropped off in a locker, even if it physically fits in the locker.
This distinction is easy to forget when shipping heavy items (tools, small appliances). Checking the delivery method chosen by the buyer before packing helps anticipate a potential refusal.
Weighing your parcel correctly: costly mistakes
A kitchen scale is sufficient for a small package. For a parcel weighing several kilos, a luggage scale or a bathroom scale (weigh yourself with and without the parcel, then calculate the difference) will do the job. The goal is not precision to the gram, but to avoid miscalculating the range.
The weight of the packaging matters
A double-walled box, bubble wrap, adhesive tape: all of this adds up. On a light item, the packaging can represent a significant portion of the total weight. A 350 g book in a box with cushioning can easily reach 500 g, moving into the next range.
Here are a few practices to stay within the correct range:
- Use soft pouches instead of rigid boxes when the item allows (clothing, textiles, soft accessories)
- Reduce cushioning to the strict minimum, without compromising the protection of the contents
- Cut the box to the size of the item to eliminate unnecessary volume, which also reduces packaging weight
- Weigh the parcel when it is closed and ready to ship, not just the item alone
Mondial Relay pricing and dimensions: the trap of a compliant parcel in weight but oversized
A parcel can weigh 2 kg and still be refused. If the total dimension (length + width + height) exceeds 150 cm, or if the longest side exceeds 120 cm, Mondial Relay will not accept the shipment, regardless of the displayed weight.
This situation often arises with long and thin items: curtain rods, fishing rods, frames. The weight is well within limits, but the dimensions exceed the allowable size. The price is therefore never calculated based solely on weight: it is necessary to cross-check weight and dimensions to confirm that the shipment is eligible.
For items exceeding 30 kg or oversized dimensions, Mondial Relay offers a Drive service allowing the pickup of parcels up to 150 kg, but the prices and pickup method change radically.
Ultimately, calculating the Mondial Relay price based on weight remains a simple operation: weigh the packed parcel, check the dimensions, identify the range. The only variable that regularly traps shippers is the weight of the packaging forgotten in the calculation. A well-fitted box and a reliable scale are enough to hit the right price on the first try.