Rule of 72

The Rule of 72 estimates how many years it takes for an amount to double at a fixed annual rate.

Saved scenarios

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Doubling estimate

Starting amount

Annual rate (%)

Divide 72 by this percent. 6% is about 12 years.

Equation

Years to double ≈ 72 / annual rate percent

Years to double

12 years

Doubled amount

$2,000.00