Shipping Cost Calculator
Calculate shipping costs for domestic and international orders based on weight, dimensions, and carrier. Compare pricing across Royal Mail, DPD, and more.
Last updated: March 2026
Estimated Cost
£$6.10
Cost per kg
£$3.05
Est. Delivery Days
4 days
How You Compare
Your shipping cost per kg is better than 55% of UK parcel shipping.
Industry typical: £2-£6 per kg
Source: Royal Mail Business Data 2025
💡 What This Means
- ✅ At £6.10, shipping cost is low. This gives you room to offer free shipping without significantly impacting margins.
- 📊 Cost per kg is £3.05. Estimated delivery in 4 days. Standard delivery is typically 40-60% cheaper than express for the same route.
- 💡 For ecommerce, shipping should be under 10% of order value. If it's higher, customers will abandon their carts — consider absorbing some shipping cost.
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What is Shipping Cost?
Shipping cost is the total expense of delivering a product from warehouse to customer, including carrier charges, packaging, and any zone or weight surcharges. For ecommerce businesses, shipping is both a cost centre and a conversion lever — free shipping thresholds are one of the most effective tools for increasing average order value. Plan stock purchases with the Bulk Order Calculator and build product prices with the Product Configurator.
The Formula
Shipping Cost = Base Rate + (Package Weight × Per Kg Rate) + Distance/Zone Surcharge
Carriers often use dimensional weight (L × W × H ÷ 5000) if greater than actual weight.
Worked Example
A 2kg package shipped UK domestic: base rate £3.50, per-kg rate £1.20, no zone surcharge.
- Base rate = £3.50
- Weight charge = 2 × £1.20 = £2.40
- Zone surcharge = £0
- Total shipping cost = £3.50 + £2.40 = £5.90
📌 Shipping cost of £5.90 per parcel. On a £30 average order, that's 19.7% of order value — highlighting why free shipping thresholds at £40+ are so common.
Why This Matters
Conversion impact
Unexpected shipping costs are the #1 reason for cart abandonment (48% of cases). Displaying shipping costs early or offering free shipping above a threshold reduces abandonment by 15-25%.
Free shipping strategy
Setting a free shipping threshold 20-30% above your average order value encourages customers to add items. A £40 threshold on a £30 AOV typically increases AOV by 15-20%, more than covering the shipping cost.
Common Mistakes
❌ Using actual weight instead of dimensional
A large, light package (e.g., pillows, lampshades) is charged by dimensional weight. A 50×40×30cm box weighing 1kg has a dimensional weight of 12kg — you'd be charged for 12kg, not 1kg. Always check both.
❌ Not negotiating carrier rates
Carrier rate cards are starting points, not fixed prices. Businesses shipping 50+ parcels/week can typically negotiate 15-30% discounts. Get quotes from multiple carriers and use them as leverage.
Industry Benchmarks
| Category | Good | Average | Poor |
|---|---|---|---|
| Shipping as % of order value | Below 5% | 5-10% | Above 12% |
| Free shipping threshold lift | Increases AOV 15%+ | 5-15% | No measurable lift |
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