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This Insights & info-centre offer a multiplicity of professional information on logistics trend and distribution

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Airfreight Weight/Volume ratio

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How is airfreight calculated?

Volume ratio 1: 6 or 1 m3 = 167 kg. That means you either pay for the weight or the space necessary for the transport of your consignment.

Type of transport volume calculation

• Air freight 1 m3 = 167 kg
• Sea freight 1 m3 = 1,000 kg

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SEA FREIGHT CONTAINERS

An overview of the most utilized shipping containers and reefers, incl. dimensions, volumes and maximum load (standard values).

The dimensions, fittings and load-ability of shipping containers are standardised by the International Maritime Organisation (IMO). The containers are generally 20ft or 40ft in length.
Shipping containers can be transported over land and water without any problems, since they are easy to fit to trains and trailer truck. This eradicates the necessity to transfer individual consignments at the port or railway station.

Containers are allocated a special identity to safeguard and ease of international identification. The first four capital letters indicate “the possessor, followed by a six-digit check number.”

20ft General Container Inside dimensions 5,9 x 2,3 x 2,4 m Useable volume 33,2 m³ Door opening 2,3 x 2,2 m Max payload (tons)* 28,2
40ft General Container Inside dimensions 12 x 2,3 x 2,4 m Useable volume 67,7 m³ Door opening 2,3 x 2,2 m Max payload (tons)* 26,7	40ft HQ General Container Inside dimensions 12,0 x 2,3 x 2,7 m Useable volume 76,3 m³ Door opening 2,3 x 2,5 m Max payload (tons)* 26,4
20ft Flat Rack Inside dimensions 5,6 x 2,2 x 2,2 m Useable volume 25 m³ Max payload (tons)* 37 40ft Flat Rack Inside dimensions 11,6 x 2,2 x 2,2 m Useable volume 52,7 m³ Max payload (tons)* 39,3
40ft Flat Rack Inside dimensions 11,6 x 2,2 x 2,2 m Useable volume 52,7 m³ Max payload (tons)* 39,3	40ft open top container with detachable tarpaulin Inside dimensions 12,0 x 2,3 x 2,3 m Useable volume 65,5 m³ Max payload (tons)* 26,6
Payloads are not equal for every product. Road limitations vary from country to country, so you must check with our team on maximum load in a container. Please note that RB2B cannot be held responsible for any of the content pertaining to above. Calculation table You might find measurements are not matching as per your common terms as it may vary country to country. The below tables would assist you to calculate these "exotic" values into the units frequently used.
Length measurement 1 inch 2.54 cm 1 foot 0.3048 m 1 yard 0.9144 m 1 mile 1.6093 km 1 cm 0.3937 inch 1 m 3.2808 ft 1 m 1.0936 yard 1 km 0.6214 miles	Surface measurement 1 inch2 6.452 cm2 1 ft2 0.0929 m2 1 cm2 0.1550 inch2 1 m2 10.7639 ft2 1 yard2 0.8361 m2 1 m2 1.1960 yard2
Weight measurement 1 Pound 0.4536 kg 1 Ounce 28.3495 g 1 kg 2.2046 Pound 1 g 0.0353 Ounzes	Space measurement 1 inch3 16.387 cm3 1 ft3 0.0283 m3 1 cm3 0.0610 inch3 1 m3 35.3156 ft3 1 yard3 0.7646 m3 1 m3 1.3079 yard3