Free E-Commerce Calculators & Simulators
Institutional-grade decision models to stress-test your unit economics, ad spend efficiency, platform fees, discount elasticity, and working capital cycles before deploying capital.
Advertising & Attribution
Multi-channel ROAS benchmarks, ad spend pacing, and break-even acquisition models.
E-Commerce Break-Even ROAS Calculator
Input your gross margins and transaction fees to calculate the exact return on ad spend needed to stay profitable.
Profitability & Margins
Gross margin, net contribution, and unit economics calculation tools.
True Profit Margin Calculator
Calculate gross, operating, and net profit margins after accounting for COGS, shipping, ad spend, and gateway overhead.
Discount Impact & Contribution Calculator
Calculate how discounts affect your true contribution margins and discover how much extra volume you need to break even.
Fees & Operating Costs
Platform transaction costs, payment gateway leakage, and fulfillment buffers.
Shopify Fee & Payment Calculator
Determine effective platform transaction costs and gateway deductions across different plan tiers.
Customer Economics
Customer lifetime value, payback periods, and cohort retention models.
CAC Payback Period Calculator
Calculate the order cycles and time required to recover customer acquisition costs based on contribution margins and repeat rates.
True Customer Lifetime Value (LTV) Calculator
Simulate realistic customer lifetime value using true contribution margin and geometric cohort decay.
Inventory & Operations
Reorder points, safety stock buffers, and supply chain working capital modeling.
Reorder Point & Inventory Cash Flow Calculator
Calculate optimal reorder points, required safety stock buffers, and purchase order working capital exposure.
Client-Side Processing & Privacy Guarantee
Every calculation runs directly in your browser. None of your inputs, revenues, margins, or cost parameters are sent to or stored on our servers. Run unlimited scenarios with total confidence.