Compound Interest Calculator

Project investment growth over time with comprehensive compound interest calculations including regular contributions, multiple compounding frequencies, and timeline visualization for retirement and financial planning. This investment tool provides growth projections, contribution calculations, compounding options, timeline visualization, and earnings breakdown with professional financial modeling. Perfect for retirement planning, investment strategy, savings goals, and understanding the power of compound interest for long-term financial success.
Growth Projections Contribution Calculations Multiple Compounding Timeline Visualization
Live Calculator
1337 × 42
56,154
Growth: $10K grows to $26K in 10 years
Monthly: $500/month = $82K after 10 years
Compound: Daily vs Annual: 5% difference

Inputs

Summary

Final Balance:
-
Total Contributions:
-
Total Interest Earned:
-

Yearly Breakdown

YearStartEndContribInterest

Help & Related Tools

Everything you need to know

FAQ Frequently Asked Questions

How does compound interest differ from simple interest?
Compound interest earns returns on both the original principal and previously earned interest, while simple interest only earns on the principal. Compound interest grows exponentially over time, making it powerful for long-term investing.
Can I include regular contributions to my investment?
Yes, the calculator typically allows you to add regular monthly or annual contributions, showing how consistent investing combined with compound interest dramatically increases long-term wealth accumulation.
What compounding frequencies are supported?
Most calculators support various compounding periods including daily, monthly, quarterly, and annually. More frequent compounding slightly increases returns, though the effect diminishes with higher frequencies.
Can I see year-by-year growth projections?
Yes, many tools provide detailed year-by-year breakdowns showing account balance growth, interest earned, and cumulative contributions. This visualization helps understand the power of compound growth over time.
Is this useful for retirement planning?
Extremely useful! Compound interest calculations are fundamental to retirement planning, showing how early investing and consistent contributions can build substantial wealth over 20-40 year periods.

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