Ultimate Investment Calculator

•  Input Section – what do you have to give

1. Investment Type → SIP / FD / RD / Mutual Fund

2. Investment Name → Optional, jaise “HDFC SIP”, “ICICI FD”

3. Principal / Monthly Investment → SIP/RD me monthly amount, FD/MF me lump sum

4. Rate of Interest / Expected Returns (%) → Annual interest ya expected return

5. Tenure (Years) → Kitne saal investment karega

💡 Jaise hi aap input dalte ho aur Add Investment pe click karte ho, calculator automatic calculate kar deta hai.

•  Automatic Calculation Logic

SIP / RD

• Monthly deposit ko monthly compounding formula se future value calculate karta hai:

FV=P×(1+r)n−1r×(1+r)FV = P \times \frac{(1 + r)^n – 1}{r} \times (1+r)FV=P×r(1+r)n−1​×(1+r)

• $P$ = Monthly investment

• $r$ = Monthly interest rate = Annual rate / 12 / 100

• $n$ = Total months = Tenure × 12

• Ye formula har month ka growth calculate karta hai aur line graph me dikhaata hai.

FD / MF

• Lump sum invest karte ho to compound interest formula se calculate:

FV=P×(1+r/100)tFV = P \times (1 + r/100)^{t}FV=P×(1+r/100)t

• FD / MF me monthly approximate growth bhi calculate kar ke line graph me plot hota hai.

• Outputs Calculated Automatically

• Total Invested Amount → SIP/RD = sum of monthly deposits, FD/MF = principal

• Total Returns → FV – Invested

• Maturity Amount → Future Value

• Monthly Growth Array → Line graph ke liye

•  Display Section

• Summary Box → Each investment ka:

  • Name + Type

  • Invested

  • Returns

  • Maturity

• Overall Total → Sab investments ka combined summary

• Monthly Growth Graph → Line graph showing how each investment grows month by month

  • X-axis → Month

  • Y-axis → Amount (₹)

•  Save Records / Local Storage

• Save Record button → Browser me save hota hai

• Multiple investments + months ko save kar sakte ho

• Saved records list me show hote hain

•  PDF Download

• Download PDF button → Current summary ko PDF me convert karta hai

• Later upgrade me graph image bhi include kiya ja sakta hai

• Perfect for reports / record keeping

•  How Graph Works

• Monthly Growth Graph automatically update hota hai

• Har investment ke liye line plot generate hota hai

• Easily compare kar sakte ho:

  • Kaunsa investment faster grow kar raha hai

  • SIP vs FD vs RD vs MF

•  Step by Step Example

1. Input:

   • Type: SIP

   • Name: “HDFC SIP”

   • Principal: ₹5,000/month

   • Rate: 12%

   • Tenure: 5 years

2. Automatic Calculation:

   • Total Invested: 5,000 × 60 = ₹3,00,000

   • Future Value ≈ ₹5,00,000

   • Returns ≈ ₹2,00,000

3. Graph shows month-by-month growth

4. Save Record → Browser me save

5. Download PDF → Report ready