StartupCostLab

What will your online store really cost?

Free calculators for start-up costs, platform fees and break-even points. Every number is shown, so you can change it and see what happens.

Updated 10 November 2026Reviewed by TomasHow we calculate

Total monthly cost
$249
Share of your sales
5%
Cost per order
$2.24

Running this Shopify store costs about $249 a month, which is 5% of your sales or $2.24 per order. $70.25 of that is fixed and $178 is card fees that grow with sales.

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How the numbers work

Each calculator uses published platform fees, shows every line of the sum and lets you change any input. Fee figures live in one place and carry a review date, so you can see how current they are. Read the methodology to see what we check and what we cannot.

StartupCostLab is run by Tomas. The calculators give planning estimates, not advice, and some links on the site are affiliate links.