Compound Interest Calculator
Watch your money grow (Einstein's favourite magic trick)
Final Amount
€300 276
Total Invested
€100 000
Interest Earned
€200 276
Money Multiplier
×3.0
Growth over 25 years
Y1: €14k
Invested: €14k
Interest: €841
Y3: €24k
Invested: €21k
Interest: €4k
Y5: €36k
Invested: €28k
Interest: €8k
Y7: €49k
Invested: €35k
Interest: €14k
Y9: €64k
Invested: €42k
Interest: €21k
Y11: €81k
Invested: €50k
Interest: €31k
Y13: €101k
Invested: €57k
Interest: €44k
Y15: €124k
Invested: €64k
Interest: €60k
Y17: €150k
Invested: €71k
Interest: €79k
Y19: €180k
Invested: €78k
Interest: €102k
Y21: €215k
Invested: €86k
Interest: €129k
Y23: €254k
Invested: €93k
Interest: €162k
Y25: €300k
Invested: €100k
Interest: €200k
💡 By investing €300/month for 25 years at 7%, interest makes up 67% of your final amount — that's €200 276 you never worked a day to earn. That's compound interest.