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$5,000 invested for 20 years at 4%
Exact compound math for the given inputs.
$11,112.91
future value (monthly compounding, no deposits)
Principal$5,000.00
Interest earned$6,112.91
Growth multiple2.22×
Rule of 7218.0 yrs to double
Frequently asked questions
How much will $5,000 be worth in 20 years at 4%?
With monthly compounding it grows to $11,112.91 — that is $6,112.91 of interest earned on $5,000.00.
What if compounding is annual instead of monthly?
Annual compounding gives $10,955.62 — more frequent compounding always yields slightly more.
How long until it doubles?
The Rule of 72 estimates 18.0 years at 4% (18.00 precisely).
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Change the numbers yourself
Open the interactive compound interest calculator — every field is editable.