เครื่องคำนวณพลังของดอกเบี้ยทบต้น
ดูว่าผลตอบแทนเล็กๆ ที่สม่ำเสมอทบต้นเป็นผลตอบแทนพิเศษอย่างไรเมื่อเวลาผ่านไป เคล็ดลับในการสร้างความมั่งคั่งเริ่มต้นด้วยการทำความเข้าใจการเติบโตแบบทบต้น
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ป้อนรายละเอียดของคุณและคลิกคำนวณเพื่อดูการเติบโตที่คาดการณ์
ดอกเบี้ยทบต้นทำงานอย่างไร
Compound interest is interest calculated on both the initial principal and the accumulated interest from previous periods. It's the key to exponential wealth growth.
The Compound Interest Formula
A = Final amount after compounding
P = Principal (initial investment)
r = Interest rate per period (as decimal)
t = Number of compounding periods
ดอกเบี้ยทบต้นรายวัน
More frequent compounding means faster growth. Daily compounding gives you 365 opportunities per year for your money to grow.
เวลาคือพันธมิตรของคุณ
The longer your money compounds, the more dramatic the results. Start early and let time work for you.
การลงทุนซ้ำสำคัญ
Reinvesting your earnings is what makes compounding powerful. Even partial reinvestment can significantly boost long-term returns.
ความสม่ำเสมอเป็นผู้ชนะ
Small, consistent gains compound better than sporadic large ones. A steady 0.5% daily beats occasional 5% days with losses in between.
ทำไมดอกเบี้ยทบต้นจึงสำคัญ
Understanding compound growth is essential for making smarter financial decisions.
การเติบโตแบบทวีคูณ
Unlike linear growth, compound returns accelerate over time. The longer you stay invested, the faster your wealth grows.
ติดตามผลตอบแทนของคุณ
Use this calculator to understand the true impact of your trading or investment returns over time.
ตั้งเป้าหมายที่เป็นจริง
The reverse calculator helps you understand what rate of return you need to reach your financial goals.
กฎ 72
A quick way to estimate how long it takes to double your money at a given interest rate.
Example: At 8% annual return, your money doubles in approximately 9 years (72 ÷ 8 = 9)
คำถามที่พบบ่อย
What is compound interest?
Compound interest is interest calculated on both the initial principal and the accumulated interest from previous periods. Unlike simple interest which only earns on the principal, compound interest earns 'interest on interest,' leading to exponential growth over time.
Why is 1% daily equal to 3,678% yearly?
This is the power of compounding. Each day's gain is added to the balance, so the next day's 1% is calculated on a larger amount. After 365 days of this, $1 becomes $37.78 (1.01^365 = 37.78), which is a 3,678% increase.
What's the difference between daily and monthly compounding?
Daily compounding applies interest 365 times per year, while monthly compounding applies it 12 times. More frequent compounding results in slightly higher returns because you earn interest on interest more often.
Is achieving 1% daily returns realistic?
Sustained 1% daily returns (3,678% annually) are extremely difficult and carry high risk. Most professional traders and hedge funds aim for 15-25% annual returns. Use this calculator to set realistic expectations for your trading or investment strategy.
What is the reinvestment rate?
The reinvestment rate is the percentage of your earnings that you reinvest rather than withdraw. At 100%, all earnings compound. At 50%, half your earnings compound while half are withdrawn. Lower reinvestment means slower growth but provides regular income.
How does excluding weekends affect the calculation?
For trading or business activities that don't occur on weekends, excluding them gives a more accurate picture. A year has about 252 trading days vs 365 calendar days, so the same daily rate compounds differently.
What is the reverse calculator used for?
The reverse calculator helps you determine what daily, weekly, monthly, or yearly rate of return you need to reach a specific goal amount in a given time period. It's useful for setting realistic trading or investment targets.
Can I use this for trading profit calculations?
Yes! This calculator is perfect for understanding how your trading returns compound over time. Enter your average daily win rate to see long-term projections, or use the reverse calculator to set daily targets based on your goals.
ข้อจำกัดความรับผิดชอบที่สำคัญ
This calculator is for educational and planning purposes only. Past returns do not guarantee future results. Trading and investing involve risk, and you may lose money. The projections shown assume consistent returns, which is unrealistic in real markets. Always do your own research and consider consulting a financial advisor before making investment decisions.
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