EcomCalc Simple is a dedicated, offline-first calculator designed for e-commerce sellers, merchants, and online business owners. Quickly estimate profit margins, platform fees, target retail pricing, and discount markdowns directly from your device—no internet connection required.

Calculate Margins, Markups, and Fees Instantly
Input your listing price, item cost, and shipping cost to instantly calculate net profit, profit margin percentage, and Return on Investment (ROI). The calculator applies custom or preset platform fee models to show exact deductions.

Pre-configured & Customizable Platform Presets
Avoid manual fee calculations by choosing from pre-configured fee structures for major e-commerce platforms, or create your own custom presets. Specify both percentage-based fees and flat-rate transaction fees to match your specific selling channels.

Determine Your Target Listing Prices
Set a desired profit margin percentage, enter your product and shipping costs, and EcomCalc Simple will compute the exact retail price you need to charge to meet your financial targets.

Simulate Markdown Strategies with the Discount Matrix
Plan promotional sales and clearance events. The built-in discount matrix calculates the final sale price, profit, and profit margin for common discount tiers ranging from 5% to 75%.

Save and Manage Product Cost Profiles
Store product profiles with custom names, SKUs, product costs, shipping charges, and platform fee presets. Load saved profiles directly into the main calculator to perform quick recalculations.

Keep Track with the Local History Log
Every calculated result can be logged to a local history database. Access your previous calculations anytime to compare margins and pricing structures across different product models.

Key Features:
• Margin & Markup Calculator: Computes net profit, margin %, and ROI.
• Target Pricing Engine: Automatically solves for required listing prices based on desired profit margins.
• Discount Matrix: Simulates markdown pricing outcomes from 5% to 75%.
• Platform Presets: Standard presets for major channels, plus a fully customizable preset builder.
• Product Cost Directory: Save names, SKUs, cost, shipping, and presets for quick retrieval.
• Local History Log: Store past calculations for offline review.
• 100% Offline-First: All calculations, history, and profiles are saved locally on your device for complete privacy and instant access.