Savings Growth Calculator
Project how a savings balance grows over time with regular contributions.
Future Balance
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Total Contributions
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Interest Earned
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Balance at 1 Year
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Balance at 3 Years
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Balance at 5 Years
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Balance at 10 Years
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Guide
How it works
Use this calculator to project how a savings balance can grow over time with regular monthly contributions.
What this calculator does
The savings growth calculator estimates a future balance from a starting amount, monthly deposits, and interest.
It uses:
- initial savings balance
- monthly contribution
- annual interest rate
- time period in years
Savings Growth Formula
FV = P(1 + r)^n + PMT x (((1 + r)^n - 1) / r)
Where:
- FV = future savings balance
- P = starting balance
- PMT = monthly contribution
- r = monthly interest rate
- n = number of months
Example calculation
If:
- Initial savings = 10,000
- Monthly contribution = 500
- Annual interest rate = 4%
- Time = 5 years
Then:
- Total contributions = 40,000
- Future balance = about 44,000
- Interest earned = about 4,000
The account grows to about 44,000 after 5 years.
What is savings growth?
Savings growth is the increase in an account balance from deposits and earned interest. The longer the timeline, the more compounding contributes to the final balance.
Why savings growth matters
- shows how regular deposits build wealth over time
- separates contributed money from interest earned
- helps compare savings rates and account options
- supports long-term planning for cash goals
When to use this calculator
- projecting savings over several years
- comparing monthly contribution amounts
- estimating interest from a savings account
- planning cash reserves for future needs
Common mistakes
- assuming interest is earned only once per year
- forgetting that contribution timing affects growth
- using a high return assumption for cash savings
- ignoring withdrawals from the account
Savings growth vs future value
Savings growth usually focuses on a savings account with regular deposits. Future value is broader and can apply to investments, lump sums, or payment streams.
FAQs
What is savings growth?
Savings growth is the increase in savings from deposits plus interest over time.
How do you calculate savings growth?
Grow the starting balance by the monthly rate, then add the compounded value of each monthly contribution.
What is a good savings growth rate?
A good rate depends on market conditions and account type. For cash savings, compare the rate against other low-risk accounts.
What is the difference between savings growth and compound interest?
Compound interest measures interest on interest. Savings growth includes compound interest plus new deposits.
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