Compounding means earning interest on interest — your money grows faster over time as returns pile up on both principal and previous gains. SSW’s easy calculator shows exactly how ₹1 lakh turns into much more at a steady 12% annual rate. Think of it like a snowball rolling downhill, getting bigger automatically.
Simple Breakdown
Start with principal (your money). Each year:
- Add 12% return on the full current amount.
- Reinvest — next year’s 12% applies to the new total.
- Repeat — watch exponential growth!
How to Calculate Compound Interest?
Groww uses a globally standardized method to determine the total compound interest accrued. The formula is –
A = P (1 + r/n) ^ nt
The variables in the formula are the following:
- P: Principal Amount
- A: Compound interest
- R/r: Rate of interest
- N/n: Number of times interest compounds in a year
- t :Number of years
Year-by-Year Example: ₹1 Lakh at 12% (Annual Compounding)
| Year | Start Amount | 12% Gain | End Amount | Total Growth |
| 1 | ₹1,00,000 | ₹12,000 | ₹1,12,000 | ₹12,000 |
| 2 | ₹1,12,000 | ₹13,440 | ₹1,25,440 | ₹25,440 |
| 5 | ₹1,76,234 | ₹21,148 | ₹1,97,382 | ₹97,382 |
| 10 | ₹3,10,585 | ₹37,270 | ₹3,47,855 | ₹2,47,855 |
| 20 | ₹9,64,629 | ₹1,15,756 | ₹10,80,385 | ₹9,80,385 |
Key Insight: After 10 years, ₹1L becomes ₹3.48L (not just ₹2.12L simple interest). In 20 years: ₹10.8L!
SSW Calculator: Plug & Play
- Enter principal (₹10k-₹10Cr)
- Fixed 12% rate
- Years (1-40)
- Compounding frequency (annual, monthly, daily)
Outputs: Table like above + final amount chart.
Why 12% Matters (Real Talk)
- Equity MFs: Historical avg ~12% post-inflation.
- FDs: 6-8% (less power).
- Power tip: Start early — ₹10k/month at 12% = ₹1Cr in 25 years via SIP compounding.
Snowball your savings with SSW — try the compounding calculator now and see 12% magic unfold!
SSW Compounding Calculator FAQs
1. What is compounding?
Earning returns on your initial money + previous gains — like a snowball growing bigger as it rolls. At 12%, ₹1L becomes ₹3.48L in 10 years.
2. How does the SSW calculator show growth?
Enter principal and years — get a year-by-year table: start amount, 12% gain, end balance. See ₹1L hit ₹10.8L in 20 years.
3. ₹1 Lakh Growth Snapshot @12%
| Years | Final Amount | Total Gain |
| 5 | ₹1.76L | ₹76k |
| 10 | ₹3.11L | ₹2.11L |
| 20 | ₹9.65L | ₹8.65L |
4. Why is monthly compounding better?
More frequent = faster growth. Annual: ₹3.11L (10 yrs). Monthly: ₹3.30L (+₹19k extra).
5. Best uses for 12% compounding?
Retirement (₹50L → ₹2.6Cr in 20 yrs), child’s education, or SIPs.
Disclaimer
The above results are for illustration purposes only. Please get in touch with a professional advisor for a detailed suggestion. The calculations are not based on any judgments of the future return of the debt and equity markets / sectors or of any individual security and should not be construed as a promise on minimum returns and/or safeguard of capital. While utmost care has been exercised while preparing the calculator, SSW does not warrant the completeness or guarantee that the achieved computations are flawless and/or accurate and disclaims all liabilities, losses and damages arising out of the use or in respect of anything done in reliance of the calculator. The examples do not purport to represent the performance of any security or investments. Given the individual nature of tax consequences, each investor is advised to consult his/her professional tax/financial advisor before making any investment decision. Past performance may or may not be sustained in future and is not a guarantee of any future returns.
The information/illustrations provided herein is meant only for general reading purposes and the views being expressed only constitute opinions and therefore cannot be considered as guidelines, recommendations or as a professional guide for the readers. The document has been prepared on the basis of publicly available information, internally developed data and other sources believed to be reliable. The sponsor, the Investment Manager, the Trustee or any of their directors, employees, associates or representatives (‘entities & their associates”) do not assume any responsibility for, or warrant the accuracy, completeness, adequacy and reliability of such information. Recipients of this information are advised to rely on their own analysis, interpretations & investigations. Readers are also advised to seek independent professional advice in order to arrive at an informed investment decision. Entities & their associates including persons involved in the preparation or issuance of this material, shall not be liable in any way for any direct, indirect, special, incidental, consequential, punitive or exemplary damages, including on account of lost profits arising from the information contained in this material. Recipient alone shall be fully responsible for any decision taken on the basis of this document
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