About MerchSites
Empowering online sellers, independent store owners, and merchandise creators with exact, transparent financial tools.
Our Core Mission
MerchSites was created to solve a widespread problem in the ecommerce community: sellers launching products with false confidence based on oversimplified margin formulas. When sellers multiply product unit cost by two to set a retail price, they miss the cumulative impact of landed freight, custom packaging, payment processing, platform fees, return reserves, and advertising CAC.
Our mission is simple: Know your real profit before you sell.
Decimal Accuracy Guarantee
Standard JavaScript calculations can suffer from floating-point rounding errors. For financial tools, small rounding errors accumulate quickly. Every calculation engine at MerchSites uses arbitrary-precision decimal algorithms to deliver cent-accurate financial projections.
Privacy-First Client-Side Processing
Your product costs, supplier pricing, margin targets, and sales projections stay 100% private. All calculations occur inside your browser using client-side JavaScript. We never store, transmit, or monetize your business financial inputs.
All calculations provided by MerchSites are for planning, educational, and estimation purposes only. MerchSites does not provide certified accounting, tax, legal, or financial advising services. Consult a qualified professional for official corporate financial statements.
A FergusonHQ Digital Property
Engineered and maintained by FergusonHQ for the global ecommerce ecosystem.