Savings Goal Calculator
Two ways to plan a savings goal: find out how long your current contribution takes to get there, or find out what you need to set aside to hit a date.
Your goal
Switch between finding the date and finding the monthly amount.
Amounts
High-yield savings accounts typically pay 3%–5%.
Progress to your goal
Contributions against total balance, month by month.
What this assumes
- A constant interest rate, compounded monthly.
- Contributions are made at the end of each month.
- No tax on interest and no withdrawals along the way.
Time to reach your goal
3 years 3 months
Saving $600.00 a month, you reach $30,000 by December 2029.
- Balance at the goal
- $30,596
- Total you contribute
- $28,400
- Interest earned
- $2,196
- Already saved
- 17%
Two ways to plan a goal
Most savings questions are one of two shapes, and this calculator answers both.
"How much will I have?" takes your contribution as fixed and solves for time. It is the right mode when the amount you can save is what it is, and you want to know when the goal arrives.
"How much do I need to save?" takes the date as fixed and solves for the contribution. This uses the sinking-fund formula: PMT = (FV − PV × (1 + i)ⁿ) × i ÷ ((1 + i)ⁿ − 1), where FV is your goal, PV your current savings, i the monthly rate and n the number of months.
How much of the work interest actually does
Over short horizons, almost none. Saving $500 a month for two years at 4% earns about $500 in interest on $12,000 contributed — around 4% of the total. Contributions do essentially all the work.
That flips with time. The same $500 a month for twenty years at 4% produces roughly $183,000, of which about $63,000 is interest — more than a third of the balance.
The practical conclusion: for a goal under about three years, focus on the contribution and on not losing money. For anything beyond a decade, the rate of return starts to matter as much as the amount saved.
Where to keep savings for different time horizons
The right account depends almost entirely on when you need the money.
- Under 1 year
- High-yield savings or a money market account. Immediate access matters more than yield.
- 1–3 years
- High-yield savings, CDs or Treasury bills. Locking in a rate can help, but check early-withdrawal terms.
- 3–5 years
- A conservative mix. Some exposure to bonds can add return without much volatility.
- 5+ years
- Investing becomes reasonable, since there is time to ride out a downturn — but a house deposit you need on a fixed date is a poor candidate for market risk.
Emergency funds
The standard guidance is three to six months of essential expenses — rent or mortgage, utilities, food, insurance, minimum debt payments — not three to six months of income.
Three months suits a stable salaried job with a dual-income household. Six to twelve is more appropriate for a single earner, variable income, or work in a volatile sector. Building the first $1,000 quickly, then filling the rest steadily, is a common and effective sequence.
Frequently asked questions
Apply the monthly interest rate to your balance, add your contribution, and repeat until the balance reaches the goal. Without interest it is simply the amount still needed divided by the monthly contribution — $12,000 at $1,000 a month is twelve months. Interest shortens that, meaningfully so over longer periods.
Use the sinking-fund formula: PMT = (FV − PV × (1 + i)ⁿ) × i ÷ ((1 + i)ⁿ − 1), where FV is your goal, PV your current savings, i the monthly interest rate and n the number of months. Switching this calculator to "How much do I need to save?" does it for you from a target date.
Three to six months of essential expenses is the standard guidance — housing, utilities, food, insurance and minimum debt payments, rather than your full income. Lean towards three months with stable dual income, and six to twelve if you are a single earner, self-employed or in a volatile industry.
For goals under three years, a high-yield savings account, money market account or short-term CD keeps the money safe and accessible. For horizons beyond five years, investing becomes reasonable because there is time to recover from a downturn. Money needed on a fixed near-term date — a house deposit in eighteen months — should not be exposed to market risk.
If you plan to buy within three years, save rather than invest. A 20% market decline months before closing would be far more damaging than the extra return is worth. High-yield savings, CDs timed to your purchase, or Treasury bills all preserve the money while earning something. Beyond five years, a conservative investment mix becomes more defensible.