Savings Goal Calculator

How Much Do You Need to Save Each Month?

Whether you're saving for a house down payment, an emergency fund, a car, or a trip — knowing the exact monthly number takes the guesswork out of the plan. This calculator works backwards from your goal: you tell it where you want to be and when, and it tells you exactly what it takes to get there.

How to Use This Calculator

Enter your savings goal (the total amount you want to reach), your current savings already set aside for this goal, the annual interest rate you expect to earn, and how many years you have. Hit Calculate Monthly Savings to see your required monthly contribution, the interest your money will earn along the way, and a year-by-year breakdown of your balance.

How the Monthly Amount Is Calculated

First, your existing savings are projected forward at the given rate to see how much they'll grow on their own:

The difference between your goal and that projected amount is the gap your monthly contributions need to fill. The required monthly contribution is then:

Where r is the monthly rate (annual rate ÷ 12) and n is total months. If your current savings already exceed the goal when projected forward, the required monthly contribution is zero — you're already on track.

Real-World Example

Using the calculator's default values — saving $50,000 in 5 years, starting with $5,000, earning 4.5% annually:

• Current savings grow to: ~$6,260 on their own
• Gap to fill with contributions: ~$43,740
• Required monthly savings: ~$652/month
• Total contributions over 5 years: ~$39,120
• Interest earned: ~$5,880
• Final balance: $50,000

Compare that to saving with no interest (under a mattress): you'd need $750/month to reach the same goal. The 4.5% rate saves you nearly $100/month in required contributions — a meaningful difference over five years.

How Interest Rate Changes Your Monthly Target

The rate you earn has a significant effect on how much you need to save each month, especially over longer time horizons. For the same $50,000 goal starting from $5,000:

• 0% (cash under the mattress): $750/month
• 2% (basic savings account): $717/month
• 4.5% (high-yield savings): $652/month
• 7% (investment portfolio): $608/month

The higher the rate — and the longer the timeline — the more interest does the heavy lifting. For short-term goals (under 2 years), the rate matters less. For goals 5+ years out, it matters a great deal.

Choosing the Right Rate for Your Goal

• Short-term goals (under 2 years) — use a high-yield savings account or money market fund. Rates typically 3–5%. Don't invest money you'll need soon in anything volatile.
• Medium-term goals (2–5 years) — consider a GIC, term deposit, or conservative bond fund. Use 3–5% as a realistic estimate.
• Long-term goals (5+ years) — a diversified investment portfolio is appropriate. Use 6–8% as a conservative long-term estimate for a stock-heavy portfolio. Higher potential return comes with higher short-term volatility.

Common Savings Goals — and Realistic Timelines

• Emergency fund (3–6 months of expenses) — typically $10,000–$30,000 for most households. Priority goal before anything else; keep in a liquid high-yield account.
• House down payment (5–20% of purchase price) — one of the most common uses for this calculator. A $400,000 home at 10% down = $40,000 goal.
• Car purchase — saving the full amount avoids financing costs entirely. Even saving half and financing the rest significantly reduces interest paid.
• Education fund — longer timelines mean investment growth does more work. Starting early for a child's education can mean contributions cover a fraction of the final amount.
• Major purchase or trip — short-term goals where 0–2% savings rates are appropriate and the monthly contribution does most of the work.

Tips to Reach Your Goal Faster

• Automate the transfer — set up an automatic transfer on payday before you can spend the money. Savings that happen automatically are savings that actually happen.
• Treat it like a bill — your monthly savings contribution should be a non-negotiable line in your budget, not something you do with whatever's left.
• Use tax-advantaged accounts where possible — accounts like TFSAs, RRSPs, ISAs, or 401(k)s shelter your interest and growth from tax, which meaningfully increases effective returns over time.
• Increase contributions with every raise — a portion of every income increase should flow directly to savings before lifestyle expenses expand to absorb it.
• Run this calculator again when things change — a raise, an unexpected windfall, or a change in timeline all affect your required monthly amount. Recalculate and adjust rather than staying on an outdated plan.

Frequently Asked Questions