Saving & investing · Any currency
Compound Interest Calculator
See how an initial investment and regular monthly savings could grow, including the effects of fees and inflation.
Your illustration
Contributions stay fixed in nominal currency. The chart shows future balances and cumulative deposits; the summary also shows today's buying power.
- Future balance
- CAD 119,780
- In today's money
- CAD 73,098
- Investment gain or loss
- CAD 49,780
A constant-return illustration, not a forecast. Monthly contributions are fixed nominal amounts.
View year-by-year table
| Year | Projected balance | Total contributed |
|---|---|---|
| 0 | CAD 10,000 | CAD 10,000 |
| 1 | CAD 13,509 | CAD 13,000 |
| 2 | CAD 17,174 | CAD 16,000 |
| 3 | CAD 21,004 | CAD 19,000 |
| 4 | CAD 25,005 | CAD 22,000 |
| 5 | CAD 29,185 | CAD 25,000 |
| 6 | CAD 33,552 | CAD 28,000 |
| 7 | CAD 38,114 | CAD 31,000 |
| 8 | CAD 42,881 | CAD 34,000 |
| 9 | CAD 47,861 | CAD 37,000 |
| 10 | CAD 53,064 | CAD 40,000 |
| 11 | CAD 58,499 | CAD 43,000 |
| 12 | CAD 64,178 | CAD 46,000 |
| 13 | CAD 70,111 | CAD 49,000 |
| 14 | CAD 76,310 | CAD 52,000 |
| 15 | CAD 82,786 | CAD 55,000 |
| 16 | CAD 89,551 | CAD 58,000 |
| 17 | CAD 96,620 | CAD 61,000 |
| 18 | CAD 104,005 | CAD 64,000 |
| 19 | CAD 111,720 | CAD 67,000 |
| 20 | CAD 119,780 | CAD 70,000 |
Educational estimates, not financial advice. Actual returns and inflation vary. Taxes, government benefits, currency movements and market volatility are not modeled. No result guarantees retirement income.
How this calculator works
Growth is applied monthly at the equivalent of your effective annual return after fees. Each contribution is added at month-end. Inflation does not reduce the nominal balance; it is used separately to calculate purchasing power.
Future value = P(1 + m)^n + C((1 + m)^n - 1) / m. At a zero monthly return, future value = P + Cn.
Rates in formulas are decimals. P is starting savings, C is the monthly contribution, n is the number of months, and m is the effective monthly return. Net annual growth is (1 + gross return) × (1 - annual fee) - 1. The equivalent monthly rate is (1 + annual rate)^(1/12) - 1. Real returns also divide the annual growth factor by (1 + inflation).
Example: With 10,000 initially saved, 250 added each month and no investment return or fees, you would have 70,000 after 20 years. Any additional modeled growth depends on the return assumption.
Change the examples to reflect your situation and test less favorable assumptions. These simplified formulas exclude country-specific taxes and benefits. Constant investment returns do not capture market volatility or the order in which gains and losses occur.
Common questions
Is this also an investment growth calculator?
Yes. Use it for a simplified investment projection or for savings interest. Enter an effective annual yield, not a quoted nominal APR. It does not model variable market returns or changes in interest rates.
Are fees and inflation counted twice?
No. Fees reduce modeled growth; inflation only converts the resulting nominal balance into today's purchasing power. Enter a return before both adjustments.
Background & references
These references explain the underlying concepts. The formulas and timing described above define this tool; no country-specific rules are imported from the references.
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