Savings calculator & compound interest tool
Comprehensive savings calculators for compound interest, inflation and taxes using interest rates from popular Canadian banks and fintechs.
Compound interest puts your Canadian dollars to work while you sleep. Over time, your initial deposit can snowball into much more than you realize. Wondering how your savings could grow? Calculate your savings growth using our comprehensive savings calculators.
You can choose from a quick-view savings calculator that pulls interest rates from various Canadian banks or fintechs, or you can use our more advanced compound interest calculator to see how other factors like inflation and taxes can impact your overall savings growth.
→ Jump to the Advanced compound interest calculator below
This comprehensive savings calculator is your ultimate tool for calculating savings growth. You can not only see what your savings could be based on a rate you enter manually, but also based on real, current savings interest rates from savings accounts offered by banks and other financial institutions across Canada.
Unfortunately, saving for the future is not as straightforward as it may seem. Due to inflation, one dollar now will have less purchasing power in the future than it does now. And unless you’re saving in a tax-exempt account, like a TFSA, you’ll also have to pay taxes on your savings growth.
That means the total savings you can actually use will look different from what a straightforward calculation may make it appear.
To give you an idea of what a more realistic view of your savings will be by taking into account factors like inflation and tax obligations, you can use the calculator below to get a more realistic picture of your potential savings.
The formula to calculate compound interest is:
For most savings accounts, your interest is compounded daily, or approximately 365 times per year. For long-term savings products like Guaranteed Investment Certificates (GICs), the formula or compounding period might differ.
The compound interest formula is much simpler if you know your bank savings account balance at the end of the business day. Here’s how most banks calculate compound interest on savings account balances:
With most bank savings accounts, interest begins accumulating when you make a deposit and is calculated on your daily closing balance. Typically, your account will be credited at the end of the month (12 times per year). Earnings can be used or spent the same day.
If you close your account, any accumulated interest is deposited the day it’s closed.
Say you deposit $5,000 into a savings account that pays 1.5% interest. For simplicity, we’ll assume there are no bank fees, and you don’t make any subsequent deposits or withdrawals.
If interest compounds daily, or 365 times per year, here’s what you’d earn over five years:
| Principal (P) | Rate (r) | Compound (n) | Time (t) | Annual interest earned |
|---|---|---|---|---|
| $5,000 | 1.5% | 365 | 1 | $75.56 |
| $5,000 | 1.5% | 365 | 2 | $152.27 |
| $5,000 | 1.5% | 365 | 3 | $230.13 |
| $5,000 | 1.5% | 365 | 4 | $309.18 |
| $5,000 | 1.5% | 365 | 5 | $389.41 |
If interest compounds monthly, or 12 times per year, here’s what you’d earn over five years:
| Principal (P) | Rate (r) | Compound (n) | Time (t) | Annual interest earned |
|---|---|---|---|---|
| $5,000 | 1.5% | 12 | 1 | $75.52 |
| $5,000 | 1.5% | 12 | 2 | $152.18 |
| $5,000 | 1.5% | 12 | 3 | $229.99 |
| $5,000 | 1.5% | 12 | 4 | $308.98 |
| $5,000 | 1.5% | 12 | 5 | $389.17 |
If interest compounds quarterly, or four times per year, here’s what you’d earn over five years:
| Principal (P) | Rate (r) | Compound (n) | Time (t) | Annual interest earned |
|---|---|---|---|---|
| $5,000 | 1.5% | 4 | 1 | $75.42 |
| $5,000 | 1.5% | 4 | 2 | $151.98 |
| $5,000 | 1.5% | 4 | 3 | $229.70 |
| $5,000 | 1.5% | 4 | 4 | $308.59 |
| $5,000 | 1.5% | 4 | 5 | $388.66 |
If interest compounds annually, or once per year, here’s what you’d earn over five years:
| Principal (P) | Rate (r) | Compound (n) | Time (t) | Annual interest earned |
|---|---|---|---|---|
| $5,000 | 1.5% | 1 | 1 | $75.00 |
| $5,000 | 1.5% | 1 | 2 | $151.13 |
| $5,000 | 1.5% | 1 | 3 | $228.39 |
| $5,000 | 1.5% | 1 | 4 | $306.82 |
| $5,000 | 1.5% | 1 | 5 | $386.42 |
Often used to bank savings calculations, compound interest is paid on your initial deposit plus any interest earned. The amount you invest in a savings account earns interest, which is rolled into the total investment. The total investment continues earning interest—only this time, on a bigger balance than before.
Often used for loans, simple interest is only calculated on the original loan amount (the principle). Interest is not part of the calculation.
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