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Loading your compound growth...
Enter your numbers to see the curve
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Future Value
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Future Value
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Total at end of period
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You Put In
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Total contributions
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Money Made Money
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Interest earned
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Growth Multiple
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How many x your money grew
🎯 Compound Growth Verdict
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💵 Investment Details
Your starting point and contributions
📊 Growth Breakdown
Your money vs your money's money
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Contributions vs Earnings
The crossover point where your money makes more than you put in
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Head Start Comparison
Starting 10 years earlier changes everything — here's the math
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Growth Milestones
Watch your money hit $100K, $500K, $1M and beyond
Growth Curve
Contributions vs Earnings by Decade
Final Split
Monthly Amount Impact
Compound Interest Report
Vault & Vessel Studio ·
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How To Use
See the most powerful force in finance — compound interest, visualized
🚀 Getting Started
1
Enter Your Starting Amount
What you have invested right now. Could be $0 — that's fine. Starting is what matters.
2
Set Monthly Contribution
How much you can invest each month. Even $100/month becomes powerful over decades. Consistency beats amount.
3
Watch The Hockey Stick
The growth curve starts slow then explodes upward. The longer you wait, the steeper it gets. This is compound interest in action.
4
Compare Head Starts
See the devastating cost of waiting. Starting 10 years earlier can double your final number — even if you invest less total.
📊 Terms Made Simple
Compound Interest: Earning interest on your interest. Your $100 earns $8. Next year, $108 earns $8.64. The snowball grows every year because the base keeps getting bigger.
Rule of 72: Divide 72 by your return rate = how many years to double. At 8% return, your money doubles every 9 years. $10K → $20K → $40K → $80K → $160K in 36 years.
Contributions vs Earnings: Early on, most of your balance is money you put in. Over time, earnings overtake contributions. After 25-30 years, your money's money is doing most of the work.
Hockey Stick Curve: The growth chart shape. Flat at first, then curves up sharply. This is why starting early matters — you need TIME for the curve to bend upward.
🔒 Your Data, Your Device
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No data uploaded anywhere · Works 100% offline — no internet needed
No data uploaded anywhere · Works 100% offline — no internet needed
⚠️ This is a directional estimate, not financial advice. Returns are not guaranteed. Historical averages don't predict future results. Use to understand the concept, not as a promise.