Mastering international shipping with an agent like CSSBuybefore
Manually adding up item costs, domestic shipping, and estimated international freight is tedious and error-prone. An automated spreadsheet helps you: Here's a fundamental column structure and the formulas to power it. Use Google Sheets or Microsoft Excel. Create a separate section on your sheet for shipping line rates
Then, in your main table, create columns for each shipping line to calculate its cost based on the Running Total Weight. Formula logic: If weight is under 0.5kg, charge first 500g price. If over, charge first price + (number of 500g increments * incremental rate). Create a dedicated summary area that uses Estimated Final Weight:=MAX(E:E) & " kg" Total Item + Fees Cost:=SUM(B:B) + SUM(F:F) Projected EMS Freight:=LOOKUP(MAX(E:E), E:G)(Adapt range as needed) Estimated Grand Total (¥):=SUM(B:B) + SUM(F:F) + [YourChosenShippingCell]Why Build a Calculation Spreadsheet?
Building Your CSSBuy Calculation Sheet
Column
Purpose
Sample Formula / Note
A: Item Name
Description of the purchased item
Manual Entry
B: Item Cost (¥)
Price in Chinese Yuan
Manual Entry
C: Domestic Ship (¥)
Cost to ship to CSSBuy warehouse
Manual Entry (often 0 or 10¥)
D: Est. Weight (g)
Your estimated weight per item. Critical!
Research and enter manually (e.g., 350 for a tee, 1000 for shoes).
E: Running Total Weight (kg)
Cumulative weight of all items in kilograms.
=SUM($D$2:D2)/1000
F: CSSBuy Service Fee (¥)
Agent service fee (e.g., 4.5% of item cost).
=B2*0.045The Core: Shipping Cost Matrix
Shipping Lines Matrix (Rates in ¥)
Line | First 500g | +500g Increment
------------------------------------------
SAL | 85 | 25
EMS | 135 | 45
DHL (Tax-Free) | 160 | 60
Column
Purpose
Key Formula Example (for EMS in cell G2)
G: EMS Cost (¥)
Calculates EMS cost for weight up to that row.
=IF(E2<=0.5, 135, 135 + CEILING((E2-0.5)/0.5, 1)*45)CEILINGFinal Projection: The Summary Box
MAXLOOKUP
Pro Tips
CSSBuy Spreadsheet: Automate Your Shipping Cost & Weight Calculations
2026-01-14