Savings Goal CalculatorHow Much to Save Each Month

Calculating a savings goal works backwards from a future target. Given a target amount, time horizon, and expected return, you can solve for the monthly contribution needed:

FV = P × (1 + r)^n + PMT × ((1 + r)^n − 1) / r

• FV — future value (your target)
• P — present savings
• PMT — monthly contribution (what we solve for)
• r — monthly return rate
• n — total number of months

Example: To reach $1,000,000 in 25 years starting from $10,000 at a 7% annual return, you'd need to save about $1,070/month. Of that final balance, more than half comes from investment growth — not contributions.

Step by step, here's what happens when you press calculate. First, your current savings are grown forward to the target date at the return you chose. Second, that projected figure is subtracted from your goal, leaving the shortfall your future deposits have to cover. Third, the shortfall is divided by an annuity factor —((1 + r)^n − 1) / r— which credits every future deposit with the interest it will earn between the day it lands and the deadline. The result is the monthly number shown above.

A no-interest sanity check is useful: shortfall ÷ months. For a $24,000 goal in 48 months that's $500/month. The calculator's answer will always be lower than that, and the gap between the two is exactly what compounding is contributing to your goal.

Two inputs dominate the monthly figure: how long you have, and what your money earns while it waits. Time is by far the stronger of the two.

Notice two things. Stretching the deadline helps at every return level — going from 5 to 10 years roughly halves the monthly amount. And the return assumption matters far more as the horizon lengthens: at 3 years it saves about 7%, at 15 years about 35%. That's why short goals belong in a high-yield savings account where the rate is known, and long goals belong in a diversified portfolio where compounding has room to work. Run the same target forwards through the investment return calculator or the savings interest calculator to see the same maths from the other direction, and read which interest rate assumptions to use before settling on a number.

There's no single right number — it depends on income, goals, and time. Common benchmarks:

• 50/30/20 rule: 50% needs, 30% wants, 20% savings.
• Retirement: aim for 15% of gross income, including any employer match.
• Emergency fund: 3–6 months of expenses in cash.
• Big purchases: work backwards from cost ÷ months to deadline.

Use the calculator above to translate any target into a precise monthly number.

1. A $15,000 car fund in 3 years. Maya has $2,000 saved and keeps the money in a 4.5% high-yield savings account. Her existing balance grows to about $2,290 by the deadline, leaving roughly $12,700 to fund from deposits — about $330/month. Without any interest she'd need $361/month, so the account is quietly paying about one month of her contributions.

2. A $60,000 house deposit in 6 years. Tom starts from $8,000 and uses a 4.5% account because the timeline is too short for stocks. He needs roughly $600/month. If he stretches the goal to 8 years it falls to about $430/month; if he pulls it forward to 4 years it jumps to about $1,000/month. Same target, three very different budgets — see how much deposit you actually need before locking the number in.

3. A $400,000 retirement top-up in 20 years. Priya has $40,000 invested at an assumed 6.5%. Her existing balance alone compounds to roughly $145,000, so she only has to fund the remaining $255,000 — about $520/month. Had she started with nothing, the same goal would need roughly $815/month. The starting balance did the work of nearly $300 a month for two decades.

Compound interest means your returns earn returns. Over decades, this snowball effect often contributes more to your final balance than your actual contributions.

Example: Save $500/month for 30 years at 7%. You contribute $180,000 but end with about $610,000 — over $430,000 of pure growth. The dashed line on the chart above shows what you'd have without growth — the gap is compounding.

Want a deeper dive? See our guide to how compound interest works or the formula explained.

Five practical levers, in rough order of impact:

• Start earlier. Time is the single biggest factor. Five extra years can cut your monthly amount in half.
• Increase the rate. Moving from cash to a diversified portfolio can dramatically lift returns over decades.
• Automate contributions. Pay yourself first — set up automatic transfers on payday.
• Cut high-interest debt. Paying off a credit card at 20% beats earning 7% in stocks.
• Increase income. Even a small raise, fully saved, accelerates everything.

This savings calculator works backwards from a financial target. You tell it the amount you want to save, your time horizon, your current savings, and an expected annual return. It then solves the future-value-of-an-annuity formula for the missing piece — the monthly contribution you need to hit that goal.

It also projects year-by-year growth, separates contributions from interest earned, and optionally adjusts your target for inflation so you can see your goal in today's dollars. Use it for any savings goal: a house deposit, an emergency fund, a wedding, a new car, college tuition, early retirement, or financial independence.

If the monthly number above looks too high, you don't always have to earn more — small shifts in habits often free up hundreds per month. Here are practical ways to save more money each month:

• Automate the day you get paid. Move savings out before you can spend it. "Pay yourself first" is the single most reliable savings habit.
• Use a high-yield savings account (HYSA). Moving from a 0.1% account to a 4–5% HYSA can double your interest with zero risk.
• Cancel unused subscriptions. The average household leaks $20–$50/month on services they don't use.
• Cap discretionary categories. Set a hard monthly cap on dining, takeout, and online shopping — the three biggest budget leaks.
• Save raises and refunds. Treat every pay raise, tax refund, and bonus as savings by default, not as new spending money.

The same calculator works for every common savings goal — just change the target and time frame:

• Emergency fund: target 3–6 months of expenses, 6–18 month timeline, kept in cash or a HYSA (~4%).
• House deposit: target 10–20% of expected home price, 2–5 year timeline, conservative return (~3–5%).
• Retirement: target ~25× annual expenses (the 4% rule), 20–40 year timeline, diversified return (~6–7%).
• Big purchase (car, wedding, travel): work backwards from cost ÷ months to deadline at a conservative rate.

Try a few different targets and time horizons above to compare what each goal would cost you per month.

1. Enter your target amount — the total you want to save.
2. Add your current savings — anything you've already put aside counts.
3. Choose a time horizon — how many years you have to reach the goal.
4. Estimate your annual return rate — 4–5% for cash/HYSA, 6–7% for a diversified portfolio.
5. Optional: add an inflation rate — to see your goal in today's dollars.
6. Review the result — your required monthly contribution and a year-by-year growth chart.

• Saving for a house deposit — work out how much per month for a 20% down payment in 3–5 years.
• Building an emergency fund — calculate the monthly amount to hit 3–6 months of expenses.
• Saving for a wedding or honeymoon — break a $20K–$40K target into a clear monthly plan.
• College or tuition fund — project growth over 10–18 years for kids' education.
• Early retirement / FIRE — back out monthly savings needed to hit 25× expenses by age 50.
• Big purchase — new car, home renovation, or once-in-a-lifetime trip.

• Automate the transfer. Set savings to leave your account the day you get paid.
• Use a high-yield savings account. Moving from 0.1% to 4–5% APY can add thousands over a few years.
• Save every raise. Bank pay increases instead of inflating your lifestyle.
• Cut one big recurring cost. Renegotiating insurance, internet, or phone often saves $50–$100/month forever.
• Use windfalls strategically. Tax refunds, bonuses, and gifts can knock months off your timeline.
• Review every 6 months. Re-run the calculator to see if you're on track and adjust the monthly amount if needed.