Small-business & profitability calculators
Price products, find your break-even, and understand what each sale actually earns. These tools turn cost, price, fees, and ad spend into the numbers that decide whether a business scales.
Margin and markup are not the same number, and confusing them quietly erodes profit. Start with the Profit Margin & Markup Calculator, then find the volume that covers fixed costs with Break-Even. For sellers, layer in platform fees and ad spend with the Ecommerce Profit & Fee and ROAS calculators to find your true break-even price and the most you can spend to acquire a customer.
Common decisions
- What price hits my target margin? → Profit Margin & Markup
- How many units cover my costs? → Break-Even
- What is my real profit after fees and ads? → Ecommerce Profit & Fee, Amazon FBA
- How much can I spend to acquire a sale? → ROAS & Ad Break-Even
Calculators in this guide
Profit Margin & Markup Calculator
profit margin and markup calculator.
Break-Even Point Calculator
break-even calculator.
Ecommerce Profit & Fee Calculator
ecommerce profit calculator for Etsy, eBay, Amazon, and Shopify sellers.
ROAS & Ad Break-Even Calculator
ROAS calculator.
Amazon FBA Profit Calculator
Amazon FBA profit calculator.
Dividend Income & Reinvestment Calculator
dividend calculator with reinvestment (DRIP).
Sales Commission Calculator
sales commission calculator.
Freelance Hourly Rate Calculator
freelance rate calculator.
Salary to Hourly Calculator
salary to hourly calculator.
Self-Employment Tax Calculator (1099)
1099 self-employment tax calculator.
More calculator guides
Manufacturing & cost calculators
Contractor & job-cost calculators
Mortgage & real-estate calculators
Ecommerce seller calculators
Home project & material calculators
State tax calculators
Estimates for general guidance, not professional advice. See how we calculate & review.