Volumetric Weight Calculator
Enter your package dimensions and actual weight, choose a carrier, and get the dimensional weight, chargeable weight and an estimated shipping cost. Couriers always charge for the greater of actual weight or volumetric weight.
✅ Quick Answer: How do I calculate volumetric weight (DIM) for DHL, FedEx or UPS?
Formula: (Length × Width × Height) ÷ Divisor. For cm/kg, divisor = 5,000. For in/lb, divisor = 139.
Example: a 60 × 40 × 30 cm box = 72,000 ÷ 5,000 = 14.4 kg volumetric weight. If the actual weight is 10 kg, you are billed for 14.4 kg — the greater of the two. DHL, FedEx and UPS all use the same 5,000 / 139 divisor for international shipments.
Formula: (L x W x H) ÷ 5000 for cm/kg, or ÷ 139 for in/lb. The cost estimate is for international express service and is a guide only — always confirm with the carrier.
Frequently Asked Questions
What is volumetric weight (dimensional weight)?
Volumetric weight (also called dimensional weight or dim weight) is a pricing technique used by couriers. It reflects the space a package occupies on a plane or truck rather than just its physical mass. It is calculated as length x width x height divided by a divisor (5000 for metric, 139 for imperial). Couriers charge for whichever is greater: actual weight or volumetric weight.
Why do DHL, FedEx and UPS charge by volumetric weight?
Large but light packages (like a box of pillows) take up a lot of cargo space while weighing very little. Charging by volumetric weight ensures carriers are fairly compensated for the space used. That is why dim weight matters for almost every international shipment.
What divisor does each carrier use?
For international air shipments DHL, FedEx and UPS all use a divisor of 5000 cm3 per kg, or 139 in3 per lb. For FedEx and UPS domestic shipments within the US the traditional divisor was 166 in3/lb, though many services now also use 139. This calculator applies 5000/139, the international standard.
How can I reduce the volumetric weight of my package?
Use the smallest box that fits your item, remove excess packaging and void fill, and consider vacuum-sealing soft goods like clothing or pillows. Shaving a few centimeters off each dimension can significantly reduce dim weight.
Is the shipping cost estimate accurate?
The estimate is a guide based on typical international express rates and should be used for budgeting and comparison only. Actual prices depend on destination, service level, fuel surcharges and seasonal peaks, so always confirm with the carrier's official quote.
How much does DHL volumetric weight shipping cost?
DHL Express bills international parcels on the greater of actual or volumetric weight, using a 5000 (cm3/kg) divisor. As a guide, DHL international express typically starts at around $28-45 for the first 0.5 kg and adds roughly $6-9 per extra kg, so a chargeable weight of 14.4 kg may cost about $110-180 depending on destination, service level and fuel surcharges. Always confirm the exact quote with DHL.
What is the difference between actual weight and chargeable weight?
Actual weight is what your parcel weighs on a scale. Chargeable weight is the higher of the actual weight and the volumetric (dim) weight, rounded up to the nearest 0.5 kg (or 1 lb) by most couriers - it is the number you actually pay for.
Free Volumetric Weight Calculator — Never Overpay for Air Freight Again
If you have ever shipped a large, light package with DHL, FedEx or UPS, you may have been surprised by the bill. That is because international couriers charge by volumetric weight (dim weight), not just by what the box weighs on a scale. Our calculator shows you instantly which weight applies to your parcel — so there are no surprises at checkout.
Why use our dimensional weight calculator?
- Supports DHL Express, FedEx and UPS with the correct 5000 / 139 divisors.
- Works in both metric (cm/kg) and imperial (in/lb) units — switch anytime.
- Shows volumetric weight, actual weight and the chargeable weight that the carrier bills.
- Gives a realistic cost range for international express shipping to help you budget.
- Instantly shows which dimension is driving your cost, so you can re-pack smartly.
- 100% free, private and ad-free — everything runs in your browser.
Common uses for the volumetric weight calculator
- E-commerce sellers quoting shipping costs to international buyers before purchase.
- Online shoppers comparing courier prices for returns and exchanges.
- Travelers mailing oversized luggage or sporting equipment home.
- Small businesses deciding between carriers for their parcel sizes.
- Anyone packing goods and wanting to minimize dimensional weight.
- Freight forwarders giving quick budget quotes to clients.
Light on your scale, heavy on your invoice? Check the volumetric weight of your next shipment in seconds — free, private and unlimited.