Know your numbers.
Make smarter moves.
Free, straightforward calculators for business owners, ecommerce sellers and marketers. Understand your margins, measure ad performance and plan with more confidence.
Calculators built for real decisions
Choose a tool, enter your numbers and get an instant estimate.
Profit Margin Calculator
Calculate gross profit, margin and markup from your price and cost.
BUSINESSMarkup Calculator
Turn product cost and target markup into a suggested selling price.
BUSINESSBreak-Even Calculator
Estimate how many units you need to sell to cover fixed costs.
MARKETINGROAS Calculator
Measure revenue generated for each dollar spent on advertising.
MARKETPLACE ADSACOS Calculator
Calculate advertising cost of sales and compare it with ROAS.
FINANCEROI Calculator
Estimate the percentage return on an initial investment.
ECOMMERCEEcommerce Profit Calculator
Estimate order profit after product, platform, shipping and ad costs.
PAYMENTSPayment Fee Calculator
Estimate transaction fees and your net payout using your provider's rates.
Useful answers, without the guesswork.
A calculator is only as useful as the assumptions behind it. Each tool explains its formula and what it leaves out, so you can understand the estimate before using it in a business decision.
Designed to be simple
No sign-up, no spreadsheet setup and no unnecessary steps. Enter your own figures and recalculate whenever your assumptions change.
Private by default
The calculators run locally in your browser. The numbers you enter are not sent to a calculator database by this starter website.