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The magic of compounding.

Short posts, one number each. Every figure comes out of the same engine as the app, with its default settings, so you can rebuild any of them in a few seconds. Share the ones that surprise you.

Historical

The 4% rule, tested on 59 start years.

It lasted forty years in 54 of them.

The cost of waiting

Ten years of waiting costs $651,000.

Same deposits, same return, one decade later.

The crossover

In year 11, your money starts out-earning you.

When interest quietly overtakes your deposits.

Drawdown

How long does $500,000 last?

It comes down to one thing: how much you take out.

Your FI number

You don't need a million.

You need 25 times what you spend in a year.

The rule of 72

Every ten years, it doubles.

After ten years it's $19,672; after forty, $149,745.

One percent

One percent more. $239,000 more.

At 7% you end with $1,169,453; at 8%, $1,408,551.

Inflation

A million isn't a million.

Reach $1,000,000 in thirty years and, at 3% inflation, it buys what $411,987 buys today.

Time to FI

From $100,000 to FI in 15 years and 1 month.

Start with $100,000, add $2,000 a month at 7%, and you get there in October 2041.

Run your own numbers.

Every story here started with a slider. Yours can too.