How to Calculate Cubic Feet for Shipping: Complete Guide 

Understanding how to calculate cubic feet (CFT) is essential for anyone involved in international shipping. Whether you're using sea freight, air freight, or warehousing, volume directly impacts your shipping cost, container selection, and logistics efficiency.

In this guide by BRF SHIPPING, you’ll learn the exact formulas, step-by-step methods, and real examples to calculate cubic feet accurately.

What Is Cubic Feet in Shipping?

Cubic feet (ft³) is a unit of volume used to measure how much space your cargo occupies.

 1 cubic foot = 1 ft × 1 ft × 1 ft

Freight forwarders use cubic feet to:

• Calculate shipping costs (especially LCL shipments)

• Plan container loading (20ft / 40ft / 40HQ)

• Estimate warehouse storage space

• Determine cargo handling requirements

Although global shipping mainly uses CBM (cubic meters), cubic feet is still widely used in the US market and warehouse logistics.

Cubic Feet Formula (Simple Explanation)

Standard Formula (Feet)

Cubic Feet = Length × Width × Height

If Using Inches

Cubic Feet = (L × W × H) ÷ 1,728

 Because:
1 cubic foot = 12 × 12 × 12 = 1,728 cubic inches

Step-by-Step: How to Calculate Cubic Feet

Step 1: Measure Your Cargo

Measure:

• Length (L)

• Width (W)

• Height (H)

 Always include:

• Packaging

• Pallets

• Outer dimensions

Step 2: Convert Units (If Needed)

• Inches → divide by 12 (to feet)

• CM → convert to feet or meters

Step 3: Multiply Dimensions

Use the formula:

L × W × H = Total Cubic Feet

Practical Examples

Example 1: Standard Carton (Feet)

Carton size:

• 4 ft × 3.5 ft × 5 ft

 Calculation:
4 × 3.5 × 5 = 70 ft³

Example 2: Carton in CM

Carton size:

• 80 × 60 × 40 cm

Convert to feet:

• 2.62 ft × 1.97 ft × 1.31 ft

 Result:
= 6.75 ft³

Example 3: Multiple Cartons

If one carton = 2 ft³
Quantity = 50

 Total = 100 ft³

Cubic Feet vs CBM (Important Conversion)

In international shipping, CBM is the standard.

Conversion Formula:

• 1 CBM = 35.315 ft³

Example:

10 CBM = 353.15 ft³

Why Cubic Feet Matters in Shipping

1. Ocean Freight (LCL)

You pay based on volume (CBM), not just weight.

2. Air Freight

Carriers use volumetric weight, based on size and weight.

3. Warehousing

Storage fees are often charged per cubic foot per month.

4. Trucking (USA)

LTL freight often uses cubic capacity pricing.

Common Mistakes to Avoid

❌ Measuring product only (not packaging)
❌ Ignoring pallet height
❌ Mixing units (cm, inches, feet)
❌ Not converting properly

These mistakes can lead to:

• Overpaying freight

• Booking wrong container

• Shipment delays

Pro Tips from BRF SHIPPING

✔ Always round up dimensions
✔ Use consistent units
✔ Optimize packaging to reduce volume
✔ Stack cargo efficiently

 Even a small volume reduction can significantly lower costs in LCL shipping

When Should You Use Cubic Feet?

Use cubic feet when:

• Shipping to/from the USA

• Calculating warehouse space

• Working with LTL trucking

• Comparing packaging efficiency

For international freight quotes, always convert to CBM for accuracy.

BRF SHIPPING Recommendation

At BRF SHIPPING, we help clients:

✔ Calculate CBM & cubic feet accurately
✔ Optimize container loading (20GP / 40HQ)
✔ Reduce shipping costs
✔ Provide door-to-door logistics solutions

Contact us today for a free volume calculation & shipping quote

FAQ (SEO Optimized)

1. What is cubic feet in shipping?

It measures the volume of cargo and determines shipping cost and space usage.

2. How do I calculate cubic feet quickly?

Multiply length × width × height in feet.

3. Why is cubic feet important?

It affects freight cost, container planning, and warehouse storage.

4. What is the difference between CBM and cubic feet?

CBM is metric (m³), cubic feet is imperial (ft³).

5. Which is used in international shipping?

CBM is standard globally, but cubic feet is used in the US market.

Final Thoughts

Calculating cubic feet is one of the most important skills in logistics.

• It determines your shipping cost

• It helps optimize container space

• It prevents costly mistakes

 Mastering cubic measurement means better planning, lower costs, and smoother shipping operations

Quick Contact: Prefer Email? Use Quotation@Brfshippinggroup.Com

 Or  Whatsapp：  +8617864216034. Lu Ma

     Whatsapp：  +8615764249056. Sundy Ma