Online Commerce & Creator Sales

Calculate gross profit and operating profit or loss from net revenue, cost of sales, and operating expenses for one consistent period.

Calculate one flat or progressive commission plan for an explicitly labeled sales period, including same-period base pay without automatic annualization.

Calculate profit margin from revenue and cost. Get margin percentage and profit amount for business analysis. Free online calculator with instant

Calculate percentages in seven modes with visible formulas, strict input validation, signed percentage change, and symmetric percentage difference.

Calculate total ROI and net gain or loss, then use CAGR for endpoint-only investments or money-weighted IRR for explicit year-end contributions.

Compare two complete quotes by dividing each total cost by its whole-unit quantity, with a signed per-unit difference and no invented scale assumptions.

Convert an entered unit cost and markup-on-cost percentage into markup amount, selling price, and equivalent gross margin with visible steps.

Allocate exactly 100% of monthly income, compare non-negative actual spending, expose fixed-dollar extras, and review transparent balances and planning ratios.

Calculate the theoretical break-even point and minimum whole sellable units, plus target-profit volume, contribution margin, and signed margin of safety.

Generate harmonious color palettes from a base color. Complementary, analogous, triadic, tetradic, monochromatic. CSS variables, Tailwind config, WCAG contrast.

Professional color picker with HEX, RGB, and HSL conversion, WCAG contrast checking, and palette generation. Pick colors and copy CSS-ready values instantly.

Generate scan-testable URL, email, phone, WiFi, or escaped vCard QR codes with UTF-8 capacity checks, color warnings, raster logos, PNG, and SVG.

Preview sRGB colors with adjustable color-vision models. Compare palettes and text pairs, check original contrast, and copy the simulated colors as CSV.