CBM Calculator: a free CBM calculator and plain-English freight guides — work out container load, volumetric weight, LCL vs FCL, and FBA profit before you book.https://cbm.aitech8.com/enhttps://cbm.aitech8.com/posts/20ft-vs-40ft-container-capacity/https://cbm.aitech8.com/posts/20ft-vs-40ft-container-capacity/A 20GP holds 33.2 CBM, a 40GP 67.7 CBM, and a 40HQ 76.4 CBM on paper. In practice, plan on 25–28 CBM in a 20GP and 60–65 CBM in a 40HQ — here is the stacking math that explains why.Sat, 14 Nov 2026 00:00:00 GMTContainers & Shippinghttps://cbm.aitech8.com/posts/fba-profit-calculator/https://cbm.aitech8.com/posts/fba-profit-calculator/A $24.99 product with $4.50 cost, $3.70 freight, $3.75 referral fee, and $5.10 FBA fee leaves $7.94 profit per unit — 31.8% margin. Here is the full per-unit math, and what it leaves out.Sat, 14 Nov 2026 00:00:00 GMTCBM & Freight Guideshttps://cbm.aitech8.com/posts/how-to-calculate-cbm/https://cbm.aitech8.com/posts/how-to-calculate-cbm/CBM is length × width × height × quantity. One 60 × 50 × 40 cm carton is 0.12 CBM; 100 cartons are 12 CBM. Here is the formula in cm and inches, plus the 1 CBM = 1,000 kg rule carriers use to charge you.Sat, 14 Nov 2026 00:00:00 GMTCBM & Freight Guideshttps://cbm.aitech8.com/posts/lcl-vs-fcl/https://cbm.aitech8.com/posts/lcl-vs-fcl/Below about 15 CBM, LCL usually wins; above it, FCL usually wins. At example rates of $45/CBM for LCL and $1,100 for a 20GP, the crossover is about 21 CBM — here is the math, plus the hidden LCL fees.Sat, 14 Nov 2026 00:00:00 GMTContainers & Shippinghttps://cbm.aitech8.com/posts/volumetric-weight-5000-vs-6000/https://cbm.aitech8.com/posts/volumetric-weight-5000-vs-6000/Express couriers (DHL, FedEx, UPS) divide by 5000; air freight uses 6000. A 60 × 50 × 40 cm carton is 24 kg by courier math and 20 kg by air math — and you always pay the higher of volumetric and actual weight.Sat, 14 Nov 2026 00:00:00 GMTContainers & Shipping