Metric

1 meter (m) 100 centimete (cm)

1 meter (m) 1,000 millimeter (mm)

1 kilometer (km) 1,000 meters (mts)

Imperial

1 feet (ft.) 12 inches (in)

3 feet (ft.) 1 yard (yd)

Metric to Imperial and Vice Versa

1 meter (m) 3.28 feet (ft.)

1 inch (in) 2.54 centimeter (cm)

1 inch (in) 25.40 millimeter (mm)

Twenty Footer Equivalent Unit (TEU) & Forty Footer Equivalent Unit (FEU)

• 1 TEU No. of 20’ van x 1 TEU

• 2 TEUs No. of 40’ van x 2 TEUs

1  US Gallon 3.78 Liters (L)

1 cubic foot (cu. ft.) 1,728 cubic inches 

1 cubic meter (cbm) 35.31445 cubic feet 

1 Liter (L) 1,000 cubic centimeter 

1 Liter (L) 1,000 milliliter (ml)

1 Liter (L) 100 centiliter (cl)

1 Liter (L) 10 deciliter (dl)

1 US Barrel (liquid) 119.24 Liters (L)

1 US Barrel (oil) 159 Liters (L)

100 Liter (L) 1 hectoliter (hl)

1 cubic meter (cbm) 1,000 Liters

1 pair (pr) 2 pieces (pcs)

1 dozen (dz) 12 pieces (pcs)

1 gross (gr) 144 pieces (pcs)

• Cigarettes

1 box 50 reams

1 ream 10 packs

1 pack 20 sticks

Rules for Rounding off (Air Shipment)

Rule 1 Decimals from  0.001 - 0.499  

Round off to 0.50 kg

Rule 2 Decimals from 0.501 - 0.999 

Round off to whole

Rule 3 Decimals from 0.5 Retained to 0.50

Rule 4 Several Volume, weights 

Add first w/o rounding off (Apply Rule 1-3)

IATA Cargo Tariff 

1 kilogram (kg) 366 cubic inches (cu. in)

1 kilogram (kg) 6,000 cubic centimer 

1 kilogram (kg) .006 cubic meter (cbm)

Cubic inches to cubic feet

= 𝐿 𝑋 𝑊 𝑋 𝐻 𝑖𝑛 𝑖𝑛𝑐ℎ𝑒𝑠 / 1,728 𝑐𝑢.𝑖𝑛𝑐

Cubic feet to cubic meter

= 𝐿 𝑋 𝑊 𝑋 𝐻 𝑖𝑛 𝑐𝑢.𝑓𝑒𝑒𝑡 / 35.31445 cbm

Cubic cm to Cbm

= 𝐿 𝑋 𝑊 𝑋 𝐻 𝑖𝑛 𝑐𝑢. 𝑐𝑚 / 1,000,000