About this Free Shipping Threshold Calculator
A free-shipping threshold should encourage a larger cart without quietly erasing the gross profit gained from that larger order.
Who this calculator is for
- Ecommerce operators estimating order, fulfillment, and shipping economics.
- Marketplace sellers comparing carrier, packaging, pricing, and return assumptions.
- Operations, finance, and inventory teams documenting transparent planning math.
When to use it
- Model shipping, handling, free-shipping, returns, or reorder scenarios from your own rates.
- Compare conservative and optimistic assumptions before changing pricing or inventory policy.
- Document the formula behind a fulfillment decision without exposing private order data.
How to use this calculator
- Enter your own costs, rates, volumes, dimensions, and policy assumptions.
- Adjust optional fields to match the SKU, channel, packaging, or planning period.
- Review the primary result and supporting outputs before making pricing, shipping, or inventory changes.
Key assumptions
- All rates, fees, costs, order values, demand volumes, and policy targets are user-entered assumptions.
- The calculator uses transparent deterministic formulas and does not fetch live carrier, marketplace, warehouse, tax, or provider rates.
- Results are planning estimates and should be checked against your carrier terms, marketplace fees, inventory system, and accounting policy.
- Inputs are processed locally in your browser.
Accuracy and testing
Review formula sources, default test cases, assumptions, unit handling, rounding rules, and changelog for this calculator.
How this calculator works
Suggested threshold = average order value + desired added cart value. Added gross profit = desired added cart value x gross margin percent. Contribution after shipping = added gross profit - shipping cost.
Threshold = average order value + desired added cart value. Added gross profit = desired added cart value * gross margin percent. Contribution after shipping = added gross profit - shipping cost.
Inputs explained
Average order value
Current average order value before changing the free-shipping threshold.
Desired added cart value
The incremental basket value you want the threshold to encourage.
Margin and shipping cost
User-entered gross margin and average shipping cost used to estimate contribution.
Understanding your results
Suggested threshold is the modeled cart value needed to trigger free shipping. Contribution after shipping shows whether the incremental gross profit covers the shipping cost entered.
Example scenarios
Planning example
With a $52 average order value, a desired $18 cart lift, 45% gross margin, and $6.50 shipping cost, the suggested threshold is $70 and the added contribution after shipping is $1.60.
Key Features
- User-entered rates and costs only
- Transparent formulas
- Local browser calculation
Tips & Best Practices
- Use recent invoices, label history, return reports, and order data when available.
- Run a conservative scenario with higher costs or lower demand before changing customer-facing pricing.
- Separate carrier cost, handling cost, inventory cost, and refund loss so the driver of the result stays visible.
Glossary of Terms
- Dimensional weight
- A billable-weight method based on package volume divided by a carrier divisor.
- Billable weight
- The weight used for pricing, often the greater of actual weight and dimensional weight.
- Contribution
- Gross profit remaining after a specific cost, such as shipping or returns, is subtracted.
- Safety stock
- Extra inventory kept above expected demand to reduce stockout risk during lead time.