HIDDEN COST CALCULATOR

Find out what one sale
actually earns.

For Etsy shops, Shopify stores, and small product businesses. Add the costs that hide between your selling price and the money you keep.

Your product numbers stay in this browser tab.

No account, upload, database, or AI. HandyPebble does not save or receive the values you enter.

One product · one average order

Build the real cost.

Use averages from recent orders when a cost changes from sale to sale.

Price and fulfillment
Selling fees
Costs people forget

Results update as you type.

REALITY CHECK

This item makes money, but it misses your target.

WHAT IT LOOKS LIKE$15.0060.0% margin using price minus product cost
WHAT YOU ACTUALLY KEEP$4.7318.9% real margin after listed costs
Hidden cost per order$10.27
Customer payment before sales tax
$25.00
Total cost per order
$20.27
Selling fees
$2.85
Return reserve
$0.30
Break-even item price
$19.78

The math, in plain English

Every order carries more than product cost.

The calculator turns irregular expenses into a per-order estimate so the comparison stays useful.

01

Start with the full order revenue

Item price plus any shipping the buyer pays, before sales tax.

02

Calculate percentage and fixed fees

Percentage fees use the order revenue. Fixed listing and processing fees are added once per order.

03

Set aside a return reserve

Return rate × average loss per return. This estimates what returns cost across all orders, not just the order that comes back.

04

Find the price that supports your margin

The target price accounts for both fixed costs and fees that rise when the selling price rises.

HP
I built this for the cost that shows up after the sale.

A $25 item with a $10 product cost does not automatically leave $15 in your pocket. Packaging, fees, ads, returns, and your time all get a vote.

Important limits

Unit economics, not tax accounting.

This is a planning estimate based entirely on the numbers you enter. Platform fees, payment fees, return losses, and advertising costs vary by store, plan, location, payment method, and order. Check your own statements and fee schedule.

Sales tax is excluded. The calculator treats separately collected sales tax as money passed through rather than sales revenue. It does not calculate income tax, inventory accounting, or deductible business expenses.