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Short answer
With these example inputs (starting amount $10,000; interest rate 2.5%; years 5 years; compounding periods per year 12), the final amount comes to $11,330.01.
1. Worked example
These steps use the formula behind the Compound Interest Calculator, with the example inputs above.
- 1Final amount = P x (1 + r/m)^(m x t) with P = $10,000, r = 2.5%, m = 12 periods a year, t = 5 years.
- 2Final amount = $11,330.01.
- 3Interest earned = $11,330.01 - $10,000 = $1,330.01.
Year-by-year view for the example inputs
| Year | Balance | Interest |
|---|---|---|
| 1 | $10,252.88 | $252.88 |
| 2 | $10,512.16 | $259.28 |
| 3 | $10,778.00 | $265.84 |
| 4 | $11,050.56 | $272.56 |
| 5 | $11,330.01 | $279.45 |
2. Scenarios
Same formula, different starting amount. Everything else stays at the example inputs.
| Starting amount | Final amount | Interest earned |
|---|---|---|
| $5,000 | $5,665.01 | $665.01 |
| $10,000 | $11,330.01 | $1,330.01 |
| $15,000 | $16,995.02 | $1,995.02 |
3. Assumptions and limits
- Every input on this page is an example, not a quote, rate or offer.
- Results are estimates from the formula shown; figures from your own provider may differ.
- Example values other than amounts taken from the search phrase were picked for illustration only.
- Not for anyone who needs a binding quote, or tax, legal or medical advice for their own case; ask a qualified professional for that.