Business Calculators

Break-even units = fixed costs ÷ (price − variable cost per unit) — that single formula determines whether a product is worth selling before a single unit ships. The break-even calculator runs that arithmetic instantly, so you can test different price points without rebuilding a spreadsheet each time.

The 4 tools here cover the numbers that come up most in early-stage decisions. Profit margin tells you what share of revenue you actually keep — a $40 product that costs $30 to make carries a 25% margin, which is the figure lenders and investors ask for first. The profit margin calculator separates margin from markup so you don't confuse the two. On the marketing side, CTR and ad revenue estimates let you gauge whether a campaign or channel is pulling its weight before you scale spend.

Each tool takes real numbers, not abstract variables. Plug in your actual costs, price, or traffic figures and the result is immediately actionable. Popular tools load first below; the full list follows.