📊 Business, Trade & Retail

Inventory Cost Calculator: FIFO, LIFO, Weighted Average and COGS (US)

Calculate your cost of goods sold and ending inventory with this free tool. Apply FIFO, LIFO, or weighted average methods for accurate US business reporting.

Discount Calculator: Sale Price, Percent Off, Stacked Discounts

Calculate sale prices and stacked discounts instantly. Save money with our easy-to-use tool for US shoppers and retailers, ensuring total privacy.

Self-Employment Tax Calculator ( and )

Estimate your federal self‑employment tax in the United States. Enter net profit and W‑2 wages to view Social Security, Medicare and deductible amounts.

Markup Calculator: Markup Percentage, Selling Price and Margin (US)

Calculate markup percentages, selling prices, and profit margins easily for your US business. Determine exact product pricing with our precise tool.

Break-Even Calculator: Break-Even Point in Units and Dollars (US)

Calculate your break-even point in units and dollars instantly. Determine profit thresholds, contribution margins, and safety margins for your business.

Profit Margin Calculator: Gross, Operating and Net Margin (US)

Calculate gross, operating, and net margins instantly. Use this tool to determine profit percentages, markup, and pricing based on your US business costs.