Rule of 72 Calculator
Free Rule of 72 Calculator — calculate and compare options instantly. No signup required.
%
0.5%36%
yrs
1 yrs72 yrs
$
Years to Double (Rule of 72)
10
At 7% annual return
Exact Years to Double
10
Doubled Amount
$20,000
How to Use the Rule of 72 Calculator
- 1. Enter your values — fill in the input fields with your numbers.
- 2. Adjust settings — use the sliders and selectors to customize your calculation.
- 3. View results instantly — calculations update in real-time as you change inputs.
- 4. Compare scenarios — adjust values to see how changes affect your results.
- 5. Share or print — copy the link, share results, or print for your records.
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