Savings Calculator
See how your savings could grow, work out how much you need to save to reach a target, or estimate how long it could take to get there.
Build your savings plan
Choose what you want to calculate and enter your own figures below.
Regular contributions are assumed to be made at the end of each contribution period.
We'll estimate the regular amount needed to reach your goal within the selected timeframe.
We'll estimate the first contribution period in which your projected balance reaches the goal.
Calculate first and your figures will be added automatically, or ask a general question about savings and compound interest.
What does a savings calculator tell you?
A savings calculator turns a few assumptions — how much you already have, how much you plan to add, the interest rate and the time available — into a projection of how your savings could develop. CalcNest also lets you work backwards from a target or estimate how long a goal could take.
Project future savings
Combine your starting balance, regular deposits and assumed interest rate to estimate how much you could have after a chosen period.
Plan for a target
Enter a savings goal and timeframe to estimate the amount you would need to put aside each week, fortnight, month or year.
Estimate time to goal
Already know how much you can save regularly? Use that amount to estimate when your projected balance could reach a chosen target.
Compound interest explained
Compound interest means interest can be earned on both your original savings and interest that has already been added. Over longer periods, this can create an increasing gap between the money you personally deposit and your total account balance.
Your balance can earn interest on interest
If interest is added to your account rather than withdrawn, the next interest calculation can be based on a larger balance. Repeating that process is what creates compounding.
When you make regular deposits, each deposit has a different amount of time to earn interest. The CalcNest calculator accounts for those recurring contributions separately rather than treating them as if they were all deposited on day one.
What could regular saving look like?
Consider someone who starts with A$5,000, adds A$500 at the end of every month and assumes a 4% annual interest rate compounded monthly for five years.
Five-year savings example
This is an illustrative calculation using a constant interest rate, not a forecast of an actual savings account.
Why is the projected balance higher than the amount deposited?
The difference comes from the assumed interest earned over the five years. The interactive graph in the calculator lets you select different points in time to see how much of the balance comes from deposits and how much comes from estimated interest.
What has the biggest effect on savings growth?
Savings projections can change substantially when you adjust the amount saved, the time available or the assumed interest rate. If you are not sure how much you can realistically put aside, a budget calculator can help you compare income and spending before choosing a regular savings amount.
How much you contribute
Increasing regular contributions directly increases the amount going into your savings and gives more money the opportunity to earn interest.
How long you save
More time means more contribution periods and more opportunities for previously earned interest to become part of the balance that earns future interest.
The interest rate
A higher assumed rate produces more projected interest. Actual savings rates can change, so testing several reasonable scenarios can be more informative than relying on one projection.
Interest rate, compounding and effective return
Two accounts can quote similar annual rates but produce slightly different results depending on how frequently interest is compounded. It is also important not to confuse a nominal annual rate with an effective annual rate or APY.
| Term | What it means | Why it matters |
|---|---|---|
| Annual interest rate | The yearly rate entered into the calculator. | It determines the assumed rate used to grow the balance. |
| Compounding frequency | How often interest is added to the balance. | More frequent compounding can slightly increase the effective return when the quoted nominal rate is unchanged. |
| Effective annual rate / APY | A yearly rate that reflects the effect of compounding. | It can make accounts with different compounding arrangements easier to compare. |
| Contribution frequency | How often you add your own money. | Money deposited earlier has more time available to earn interest. |
How CalcNest interprets your rate
The calculator treats the percentage you enter as a nominal annual interest rate and applies the compounding frequency you select. Regular savings are modelled at the end of each selected contribution period. If your bank quotes an APY or effective annual rate instead, the figures may not match exactly unless the rates are converted onto the same basis.
Where could you keep your savings?
The right place for money depends partly on what the money is for and when you expect to need it. Easy access may matter more for short-term or emergency savings, while money that will not be needed for longer may have different options. Product names, protections and account rules vary by country, so compare the terms available where you live.
Everyday account
Transaction or everyday accounts can make money easy to access, but they may pay little or no interest compared with accounts designed specifically for saving.
Savings account
A dedicated savings account can pay interest while generally keeping your money accessible. Some accounts have conditions that affect the rate, such as minimum deposits or withdrawal rules.
Term or fixed deposit
A term or fixed deposit generally locks money away for an agreed period in return for a stated rate. Accessing the money early may be restricted or may reduce the interest you receive.
Investments
Investing is different from holding cash savings. Investments may offer growth potential over longer periods, but their value can rise or fall and you may receive back less than you invested.
Look beyond the headline interest rate
When comparing places to keep cash savings, check how the advertised rate works, whether there are conditions to earn it, how easily you can withdraw money, any fees or penalties, and what deposit protections apply in your country. The highest advertised rate is not automatically the most suitable account for every savings goal.
Three ways to plan with the calculator
You do not always start a savings plan with the same unknown. Sometimes you know how much you can save; sometimes you know the target; and sometimes you know the deadline.
See where your current plan leads
Use Savings Growth when you know your starting balance, regular contribution, assumed rate and timeframe and want to estimate the resulting balance.
Work backwards from a target
Use Reach a Goal when you know the amount you want and when you want it. The calculator estimates the regular saving required.
Estimate when you could get there
Use Time to Goal when you know how much you can contribute regularly and want to estimate how long it may take to reach your target.
Your savings balance and inflation are different things
The calculator shows projected future money values. It does not automatically adjust those figures for inflation. If prices rise over time, a future balance may buy less than the same numerical amount buys today. You can explore that separately with the Inflation Calculator.
Future dollars are not the same as today's dollars
For example, reaching a target of 50,000 several years from now does not necessarily mean that 50,000 will have the same purchasing power it has today.
This matters most for long-term goals. If your target represents the future cost of something — rather than simply a fixed account balance — you may want to consider how that cost could change over time.
Useful calculators for your next step
Savings are often only one part of a wider money plan. These CalcNest tools can help you explore purchasing power, investing, budgeting and longer-term goals.
Savings calculator FAQs
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