Password Generator
A strong random password: pick the length and the characters, then copy it.
Compound Interest Calculator
What a starting amount and money added every month or every year come to, with interest earning interest.
It’s worked out a month at a time, at the rate’s effective monthly share, so at every compounding the balance is exactly what that compounding gives.
Money added at the start of a month (or a year) earns that period’s interest; at its end it starts earning the next.
The effective rate is what the yearly rate comes to over a year with its compoundings: 7% compounded monthly is 7.23%.
With an inflation rate, the end is also said in today’s money: what it would buy now.
The arithmetic of a rate, never advice or a promise: real returns go up and down, and taxes and fees come off.
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