What we make
Compound Interest Tool is a collection of free financial calculators designed to make a specific question easier to explore. Our current tools cover compound interest, daily compounding, withdrawals, continuous growth, formula solving and an ETF savings-plan model.
You can change an assumption and immediately see the result, chart and year-by-year breakdown. A result describes the mathematical model and values shown on the page; it is not a forecast, promised return or personal financial advice.
Who creates the project
Compound Interest Tool is owned by Francisco Almeida and created by an independent group of IT specialists and marketers based in Lisbon, Portugal. We design the tools, test their calculation logic and improve the explanations as the project develops.
A public contact email will be added before the site is publicly launched.
How the project is funded
The calculators are free to use. We plan to support the project with clearly identified advertising when it is enabled. Advertising does not alter a calculator's formula or result.