Freight Cost Per Unit Calculator
Allocate freight costs across product units and compare shipping options to find the best value.
Common Shipment Sizes
Freight Cost Allocation
Freight cost per unit is calculated by dividing total shipment cost by the number of units - this gives you the true cost to get each product to your warehouse. Why it matters: freight can be 5-15% of product cost for imported goods. If you do not allocate freight correctly to each SKU, your margin analysis will be inaccurate and you may underprice products. Comparison tip: the cheapest freight option is not always best - factor in transit time (slower = more working capital tied up), reliability, and damage rates. Cost per day helps you weigh speed vs price.
Save this freight cost calculator result?
Sign up to stay on top of webinars, news and events.
No spam. Unsubscribe any time.
Why freight cost allocation matters for wholesale margins
For importers and distributors, freight is one of the largest cost components after the product itself - typically 5-15% of landed cost. If you do not allocate freight accurately to each SKU, your product-level margin analysis is meaningless. You might think a product is profitable when it is actually being subsidised by other products in the same shipment.
Freight cost per unit gives you the true cost to get each product from origin to your warehouse. This is essential for setting competitive prices, identifying which products are worth importing, and deciding between air and sea freight for different product lines.
How to use this calculator
- Per Shipment mode: Enter total freight cost and number of units to get cost per unit. Add product cost, weight, and volume for additional metrics.
- Comparison mode: Enter up to 3 freight options with cost, transit time, and units. The calculator shows cost per unit, cost per day, and highlights the best value option.
- Use the quick-fill presets for common shipment sizes (pallet, half container, 20ft container, 40ft container).
Freight allocation methods
The simplest method is dividing total freight by total units - this works when all products in a shipment are similar size and weight. For mixed shipments, you may want to allocate by weight (cost per kg), volume (cost per CBM), or a combination. Some businesses use the greater of weight-based or volume-based allocation (chargeable weight method) which mirrors how freight forwarders actually price shipments.
Speed vs cost trade-offs
The comparison mode helps you evaluate the speed-cost trade-off. Air freight might cost 5x more than sea but arrives in 5 days instead of 35. For high-value, low-weight products or urgent restocks, the faster option might deliver better overall returns when you factor in reduced stockout risk and faster inventory turns. The cost-per-day metric helps quantify this trade-off.
How AP automation helps with freight cost tracking
Freight invoices from forwarders and carriers often arrive separately from supplier invoices, making it difficult to match freight costs back to specific purchase orders and SKUs. AP automation captures freight invoices, matches them to the relevant PO or shipment reference, and ensures the cost is allocated correctly in your accounting system - giving you accurate landed cost and margin data per product.
See how Pulsify automates freight invoice processing →Match freight invoices to POs automatically
Pulsify captures freight bills, matches them to shipments, and allocates costs to the right products - no manual data entry.