Growth, return and time-value calculators: compounding, CAGR, the Rule of 72, inflation, future and present value.
They turn numbers you enter, such as an amount, a rate and a time, into a result: how a balance grows, what a return works out to, how interest builds, or what money is worth earlier or later. Each page has a method section that describes the calculation.
Start from the question you have. Projecting a balance forward, measuring a return after the fact, comparing ways of earning interest and converting an amount between today and later are different questions. The one-line description on each tool above says what it answers.
The calculators on this page work from the numbers you enter, not from market data. Any tool that does use market data says so on its own page.
No. They show what the arithmetic gives for the assumptions you enter. Most hold one rate steady for the whole period, and actual returns rise and fall from year to year, so a result will not match any particular year-by-year history.
Yes. Every calculator has a method section describing the calculation, and a link that reopens the page with the inputs behind the example result, so you can reproduce it by hand or in the tool.
No. These are educational calculators, not financial advice or a recommendation.