Free, no-signup calculators for the numbers marketers actually run — return on ad spend, customer economics, ad costs and test results. Every one runs entirely in your browser.
Most good marketing calculators are locked inside a SaaS dashboard or gated behind an email form. These aren't. Each tool does its math locally in your browser — nothing is uploaded, nothing is tracked, and every result is a shareable link you can bookmark or send to a teammate. Pick a calculator above, or start with the ROAS calculator and LTV:CAC ratio, the two numbers that decide whether paid acquisition is actually working.
