Calculators

Free calculators for Amazon fees, FBA profit, VAT, shipping and more.

Free

Price Markup Calculator

Calculate selling price from cost and desired markup.

Calculators

Open Tool
Free

Unit Economics Calculator

Analyze per-unit profit, CAC and LTV metrics.

Calculators

Open Tool

Popular Tools

Free

Amazon Fee Calculator

Calculate Amazon referral and FBA fees instantly.

Calculators

Open Tool
Free

FBA Profit Calculator

Estimate your Amazon FBA profit margins accurately.

Calculators

Open Tool
Free

VAT Calculator

Calculate VAT for UK, EU, and international sales.

Calculators

Open Tool
Free

Shipping Calculator

Compare shipping costs across carriers and zones.

Calculators

Open Tool
AI Free

Review Reply Generator

Generate professional replies to negative reviews with AI.

Ai Tools

Open Tool
AI Free

Product Description Generator

Create compelling product descriptions for any marketplace.

Ai Tools

Open Tool

Popular Tools

We offer Amazon Fee Calculator, FBA Profit Calculator, VAT Calculator and Shipping Calculator.

Our calculators use current marketplace fee structures. Always verify with official platform documentation.

Yes, all calculators on Seller Toolkit are completely free with no registration required.

Yes, our FBA Profit Calculator and Amazon Fee Calculator both support FBA fee calculations.

Yes, our VAT and Shipping calculators support international and cross-border sales scenarios.