Grow Interest Calculator
Compound interest + habits = momentum
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Today’s quote
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Country / region
Currency auto-matches. Custom lets visitors choose.
Currency
Locked to selected country.
Initial amount
Monthly contribution
Annual interest rate (APR %)
Country-selected: APR auto-fills.
Time period (years)
Compounding
Monthly (12/yr)
Quarterly (4/yr)
Annually (1/yr)
Daily (365/yr)
Contribution timing
End of month
Beginning of month
Chart resolution
Yearly (clean)
Monthly (detailed)
Show table
No
Yes (yearly)
Policy rate:
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As of:
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Time to double (approx)
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Rule-of-72 estimate using APR
Reach target
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Default target: 2× total contributions
Next milestone
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Closest of +10%, +25%, +50%
Tip: adjust contributions → copy share link → send to a friend.
Ending value
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Total contributions
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Initial + monthly deposits
Total growth
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Ending value − contributions
Effective annual rate (approx)
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From compounding choice
Year-by-year breakdown
Year
Contributions
Value
Growth
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