How it works
The percentage applies to revenue before tax. Use costs for the same order, including packaging or handling in the other-cost field. The rate is illustrative rather than a platform preset.
Revenue = price + shipping charged
Fees = revenue × fee rate + fixed fee
Profit = revenue − fees − item cost − postage − other costs
Try the example
The starter inputs above produce:
Estimated net profit: $43.10
Change the inputs to match your own situation. The result is an estimate or text transformation, not a substitute for reviewing your source data.
A few useful details
Can I use this for any marketplace?
Only when its fee basis matches this simple model, or as a clearly labeled approximation. Use the separate eBay tool for the supported eBay preset.
What does the profit exclude?
Income taxes, monthly overhead, returns and any cost not entered. The result is an estimate for the order, not an accounting statement.
Do I need an account?
No. This release runs without an account, API key or payment. Saving a favorite stores only the tool’s identifier in this browser, not your inputs.
3D-print seller workflow · synthetic examples
Cost → quote → order profit
Check what remains after a print sells.
Carry the print job’s total estimated cost ($9.79), not its $13.99 suggested quote, into Item cost. In a synthetic example, selling at $18, collecting $4 shipping, paying $4 postage, assuming a 10% fee plus $0.40, and adding $1 packaging gives $4.61 estimated profit. These fee assumptions are examples, not any marketplace’s current rate.
Packaging belongs in Other order costs only if it was not already counted in the print cost. The simple fee percentage applies to sale price plus shipping here. Check the actual marketplace’s fee basis; taxes, tiered fees, returns and monthly overhead may need different treatment.
- Check filament cost — net spool weight, supports and additional waste.
- Build a full print quote — material, power, machine time and hands-on labor.
- Check order profit — selling fees, packaging and delivery.
Values are not transferred automatically. Copy the relevant cost into the next worksheet, keep units consistent, and avoid counting the same cost twice. Estimates are planning aids, not guaranteed prices or earnings.