Find out exactly how much to save every month to reach your financial goal on time, with compound interest working for you.
To save $20,000 in 3 years at 5% return: you need approximately $524/month. With $5,000 already saved, it drops to $386/month. A high-yield savings account (4-5%) vs regular (0.5%) saves about $25/month on this goal.
| Goal | Amount | 2 Years | 3 Years | 5 Years |
|---|---|---|---|---|
| Emergency fund | $10,000 | $401 | $262 | $147 |
| Car | $15,000 | $602 | $393 | $221 |
| House deposit | $40,000 | $1,605 | $1,047 | $589 |
| Wedding | $25,000 | $1,003 | $655 | $368 |
| Already Saved | Monthly Needed | Interest Earned |
|---|---|---|
| $0 | $524 | $1,136 |
| $5,000 | $386 | $1,584 |
| $10,000 | $248 | $2,032 |
| $15,000 | $110 | $2,480 |
This calculator uses the future value of annuity formula to determine monthly savings needed. The most powerful variable is time — starting earlier dramatically reduces the monthly amount because compound interest does more work over longer periods. For goals under 3 years, use a high-yield savings account (4-5%). For 5+ years, consider diversified index funds (7-10% expected return). Use our Compound Interest Calculator to see growth details.
$20K in 3 years at 5%: ~$524/month. With $5K saved: ~$386/month. Compound interest does part of the work for you.
For 1-3 year goals, minimally (~$15/month difference). For 10+ years, hugely. Always use a HYSA (4-5%) over regular savings (0.5%).
HYSA offers 4-5% APY vs 0.01-0.5% traditional. Online banks offer these with FDIC/CDIC insurance. Best for 1-5 year goals.
Under 3 years: save. 3-5 years: mix. 5+ years: invest. Short-term investing risks a drop when you need the money.
Automate on payday. Set milestones (25/50/75%). Use a visual tracker. Automation beats willpower every time.
Emergency fund (3-6 months expenses), house deposit (10-20%), car, wedding ($20-40K), vacation, education.
3-6 months of expenses. At $3,000/month expenses: $9,000-$18,000. At 5% over 3 years: $262-$524/month.
Set up automatic transfer on payday. You can't spend what you don't see. The most powerful savings habit.
HYSA earns 4-5% vs 0.5% at a regular bank. On $20K over 3 years, that's ~$2,000 extra interest for zero effort.
Celebrate every 25%. $5K→$10K→$15K→$20K. Small wins keep you motivated over a multi-year journey.
Save before you spend — transfer the moment you're paid. Live on what's left. This reorder transforms savings rates.
Check progress every 3 months. Ahead? Increase the goal. Behind? Add even $25-50/month. Small corrections keep you on track.
Keep goal savings in a separate account from daily spending. Out of sight, out of mind. Friction prevents impulse spending.