✦ Free calculators for global sellers

Make smarter decisions before money moves.

Practical calculators for marketplace fees, seller profit, product pricing, VAT, ROI, advertising and inventory decisions.

Private by design Instant results 8 markets
Profit Calculator
Gross profit$3,750+12.4%
Margin37.5%Healthy
ROI60.0%Positive
Popular tools

Start with your next business question.

Clear inputs, transparent formulas and practical results.

View all
Built for clarity

One consistent workflow across 60 calculators.

From marketplace fees to growth metrics, every tool is fast, transparent and private.

Localized markets

Currency formatting and editable regional defaults.

Private by default

Your figures stay in the browser. No calculation database.

Designed for clarity

Less spreadsheet friction. Faster decisions.

★★★★★
“The fee breakdown makes it easier to test pricing before publishing.”
MaMarketplace seller
★★★★★
“I can compare margin and ROI scenarios without rebuilding a spreadsheet.”
EcEcommerce operator
★★★★★
“Simple inputs, clear formulas and no registration wall.”
InIndependent consultant
Start calculating

Turn the next business question into a clear number.

Explore all 60 calculators for fees, tax, pricing, profit, ROI and growth.

Browse all calculators