DutyGlobal
PostalParcelLast reviewed: 2026-02-02

La Poste Dimensional Weight Calculator

La Poste is France's national postal service, offering domestic and international mail and parcel delivery through Colissimo and Chronopost services. La Poste uses volumetric weight for larger parcels.

Europe
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Calculate Dimensional Weight for La Poste

Use our dimensional weight calculator to estimate your chargeable weight with carrier presets.

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Worked Example

Colissimo parcel via La Poste

Dimensions:

45 × 30 × 20 cm

Actual weight:

3 kg

Calculation:

  1. Volume: 45 × 30 × 20 = 27,000 cm³
  2. Volumetric weight (÷5000): 5.4 kg
  3. Compare: Actual (3 kg) vs Volumetric (5.4 kg)
  4. Chargeable weight: 6 kg (the higher value)

For a 45×30×20 cm Colissimo parcel weighing 3 kg: Volume = 45 × 30 × 20 = 27,000 cm³. Volumetric weight = 27,000 ÷ 5000 = 5.4 kg. Since volumetric weight exceeds actual weight, the chargeable weight is 5.4 kg, rounded to 6 kg.

Note: Actual divisors and rounding rules may vary by service level, account type, and specific routes. Always confirm with La Poste for accurate pricing.

About La Poste Shipping

La Poste serves as France's primary postal and parcel carrier, delivering to every address across France including metropolitan areas, rural regions, and overseas territories. For parcel shipping, La Poste operates through Colissimo (standard parcels) and Chronopost (express), each with distinct pricing structures and delivery timeframes designed to meet different customer needs. Understanding La Poste's volumetric weight system is important for businesses and individuals shipping within France or internationally from French origins to destinations worldwide. Colissimo, La Poste's primary parcel service, uses a combination of weight bands and size limits, with volumetric pricing applying to larger parcels that exceed standard dimension thresholds. For French e-commerce sellers and international businesses shipping to French customers, mastering these calculations helps optimize packaging decisions and control overall shipping costs. La Poste's extensive relay point network, consisting of thousands of pick-up points at local shops across France, provides convenient alternatives to home delivery, often at lower prices that appeal to cost-conscious shippers.

How La Poste Calculates Dimensional Weight

La Poste calculates volumetric weight for applicable services using length × width × height (cm) ÷ 5000 = volumetric weight in kg. However, for standard Colissimo shipments within certain size limits, pricing is based on weight bands rather than precise volumetric calculations. Volumetric pricing becomes more relevant for larger parcels exceeding standard dimensions. Chronopost, La Poste's express service, more consistently applies volumetric weight calculations. Measurements are taken at the longest points in each dimension.

Chargeable Weight with La Poste

La Poste determines Colissimo pricing through weight bands for standard-sized parcels, making cost prediction straightforward for most shipments. When volumetric weight applies (larger parcels), the chargeable weight is the greater of actual or volumetric weight. Chronopost follows express industry standards with volumetric pricing for all shipments. Understanding when volumetric rules apply helps shippers choose appropriate packaging and services.

Typical Assumptions

Typical divisor (metric)
5000 cm³/kg
Billing method
Chargeable weight (higher of actual/volumetric)
Last reviewed
2026-02-02

These are typical values that may vary by service level, account type, and specific routes. Always confirm with La Poste for accurate rates.

Common Pitfalls

A common mistake is not understanding the difference between Colissimo and Chronopost pricing—they serve different needs at different price points. Shippers sometimes exceed Colissimo's size limits without realizing it, resulting in refused shipments or required upgrades. Another pitfall is not using online booking which offers better rates than post office counter prices. Some international shippers don't realize La Poste has partnerships affecting delivery in certain countries.

Tips to Reduce La Poste Shipping Costs

1

Use online booking (laposte.fr) for better rates than counter prices

2

Consider Point Relais delivery for cheaper rates and recipient convenience

3

Keep parcels within Colissimo standard limits to avoid volumetric pricing

4

Compare Colissimo vs Chronopost based on actual urgency needs

5

For business shipping, explore La Poste professional accounts

6

Check size limits by destination—international limits may differ from domestic

Key Terms

Frequently Asked Questions

What's the difference between Colissimo and Chronopost?

Colissimo is La Poste's standard parcel service (2-4 days within France). Chronopost is the express service (next-day, time-definite options) at higher prices. Choose based on urgency.

Does La Poste use volumetric weight for Colissimo?

Standard Colissimo uses weight bands for typical sizes. Volumetric calculations apply to larger parcels exceeding standard dimensions. Most e-commerce parcels use band pricing.

What are Colissimo size limits?

Standard Colissimo accepts parcels up to 30kg and 150cm length. Combined dimensions (L + W + H) typically can't exceed 200cm. Limits vary by service variant.

What are Point Relais?

Point Relais are pickup/drop-off locations at local businesses (tabacs, shops). They're often cheaper than home delivery and convenient for recipients not home during delivery attempts.

Can La Poste ship internationally?

Yes, Colissimo International serves many countries. La Poste also offers dedicated services for specific regions. Pricing, tracking, and customs handling vary by destination.

How do I track La Poste shipments?

La Poste provides tracking via laposte.fr and their app. Enter your tracking number for status updates including collection, sorting, out-for-delivery, and delivery confirmation.

How can I get cheaper La Poste rates?

Use online booking, ship to Point Relais, use appropriate size packaging, compare services, and consider professional accounts for volume shipping.

Is La Poste good for French e-commerce?

Yes, Colissimo is widely used for French e-commerce with good coverage, trusted brand recognition, and integration with major platforms. Point Relais network adds convenience.

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