💵 Cost & Margins
Understand the true cost of shipping and its impact on your profit margins.
Available Calculators
Shipping Cost Per Unit Calculator
Calculate shipping cost per unit, margin impact, and free shipping threshold profitability.
International Shipping Calculator
Estimate international rates, volumetric weight, import duties, and taxes by destination.
Shipping Cost Calculator
Estimate total shipping cost by carrier, weight, and zone for any domestic shipment.
Free Shipping Threshold Calculator
Find the order value at which offering free shipping is profitable given your margins.
Coming Soon
More cost and margin tools are in development.
Shipping Rate per Pound Calculator
Calculate your effective shipping rate per pound across carriers and service levels.
Shipping Margin Calculator
See gross and net margin after shipping costs at different price and volume scenarios.
Shipping Markup Calculator
Calculate how much to charge for shipping to break even or turn a small profit.
Subscription Box Shipping Calculator
Optimize monthly subscription box shipping cost by carrier, weight, and zone mix.
About These Cost & Margin Calculators
Shipping costs are one of the largest variable expenses for e-commerce sellers, often running 8 to 15% of order value for small-parcel shipments. These tools help you understand your true cost per unit, set a profitable free shipping threshold, and calculate gross margin after carrier charges. The international shipping calculator also estimates duties and VAT for cross-border shipments.
Free shipping is expected by most online shoppers, but offering it indiscriminately destroys margins. The free shipping threshold calculator finds the minimum order value where offering free shipping breaks even or turns profitable, based on your average order value, product cost, and average shipping expense. Most merchants find a threshold in the $35 to $65 range balances conversion lift against margin erosion.
Cost-per-unit analysis matters more than most sellers realize. If your shipping cost is $6 on a $20 product with a $10 cost of goods, your effective margin drops to 20% before any returns or payment processing fees. Running these numbers before you set pricing, not after, is what separates profitable SKUs from loss leaders. Use the cost-per-unit calculator to model different carrier options and service levels side by side.
All cost estimates use published retail carrier rates. Negotiated account rates will reduce your actual shipping expense. Always model with your real rates before making pricing decisions.