India has one of the most diverse financial ecosystems in the world — from traditional post-office schemes (PPF, NSC, KVP) to modern mutual funds (SIP, ELSS) and a complex two-regime income tax structure. This guide explains every major financial instrument, how to calculate returns, and links to free calculators for each.
1. SIP Calculator — Grow Wealth with Mutual Funds
A Systematic Investment Plan (SIP) lets you invest a fixed amount in mutual funds every month. Instead of timing the market, SIP uses rupee cost averaging — you buy more units when prices are low and fewer when prices are high, smoothing out volatility over time.
How SIP Returns Are Calculated
Where:
P = monthly investment amount
r = monthly rate of return (annual rate ÷ 12)
n = number of months
SIP Growth Example
| Monthly SIP | Duration | Assumed Return | Maturity Value |
|---|---|---|---|
| ₹5,000 | 10 years | 12% | ~₹11.6 lakh |
| ₹10,000 | 15 years | 12% | ~₹50 lakh |
| ₹15,000 | 20 years | 12% | ~₹1.5 crore |
| ₹5,000 | 30 years | 12% | ~₹1.76 crore |
Tax on SIP
- ELSS funds: Deduction up to ₹1.5 lakh under Section 80C
- LTCG above ₹1 lakh/year: Taxed at 10%
- STCG (held < 1 year): Taxed at 15%
📈 SIP Calculator
Calculate your SIP maturity amount, total investment, and expected returns instantly.
Open SIP Calculator →2. EMI Calculator — Plan Your Loans
An Equated Monthly Instalment (EMI) is the fixed amount you pay every month to repay a loan — home loan, car loan, personal loan, or education loan. It includes both principal repayment and interest.
EMI Formula
Where:
P = Principal loan amount
r = Monthly interest rate (annual rate ÷ 12 ÷ 100)
n = Loan tenure in months
EMI Reference Table
| Loan Amount | Rate | 10 Years | 20 Years | 30 Years |
|---|---|---|---|---|
| ₹20 lakh | 8.5% | ₹24,797 | ₹17,356 | ₹15,387 |
| ₹30 lakh | 8.5% | ₹37,196 | ₹26,035 | ₹23,081 |
| ₹50 lakh | 8.75% | ₹62,826 | ₹44,089 | ₹39,297 |
| ₹75 lakh | 9.0% | ₹94,974 | ₹67,467 | ₹60,367 |
Tips to Reduce Your Home Loan Cost
- Prepay early: Even one extra EMI per year in the first 5 years can save years off your loan
- Shorter tenure: A 15-year loan vs 20-year saves significant interest despite higher EMI
- Negotiate rate: Even 0.25% lower rate on ₹50 lakh over 20 years saves ~₹2.5 lakh
- Balance transfer: Refinance when market rates drop significantly
🏠 EMI Calculator
Calculate your home, car, or personal loan EMI with a full amortisation schedule.
Open EMI Calculator → Home Loan Calculator →3. PPF Calculator — Tax-Free Long-Term Savings
The Public Provident Fund (PPF) is one of the safest and most tax-efficient investments in India. It offers triple tax exemption — EEE (Exempt-Exempt-Exempt): investment deductible under 80C, interest earned is tax-free, and maturity proceeds are tax-free.
PPF Key Facts (2025)
| Feature | Details |
|---|---|
| Interest Rate | 7.1% per annum (compounded annually) |
| Lock-in Period | 15 years (extendable in 5-year blocks) |
| Min Investment | ₹500 per year |
| Max Investment | ₹1.5 lakh per year |
| Tax Benefit | Section 80C deduction up to ₹1.5 lakh |
| Where to Open | Post offices, SBI, most nationalised banks |
PPF Maturity Example
If you invest ₹1.5 lakh per year (maximum) for 15 years at 7.1%:
- Total investment: ₹22.5 lakh
- Maturity amount: ~₹40.7 lakh
- Tax-free interest earned: ~₹18.2 lakh
📊 PPF Calculator
Calculate PPF maturity with year-by-year growth table. Compare with FD and other instruments.
Open PPF Calculator →4. FD & RD Calculators — Fixed Returns
Fixed Deposits (FD) and Recurring Deposits (RD) are the most trusted savings instruments in India — fully guaranteed returns with no market risk.
Fixed Deposit (FD)
You deposit a lump sum for a fixed tenure and earn interest at a guaranteed rate. Banks currently offer 6.5%–8.05% depending on the bank, tenure, and whether you are a senior citizen (who get 0.25%–0.5% extra).
Where n = compounding frequency (quarterly = 4)
Recurring Deposit (RD)
You invest a fixed amount monthly for a chosen tenure. Ideal for those who cannot commit a lump sum upfront. RD rates are typically the same as FD rates for the same tenure.
FD vs RD vs PPF vs SIP
| Instrument | Returns | Risk | Tax | Liquidity |
|---|---|---|---|---|
| FD | 6.5–8% | None | Taxable as income | High (break anytime) |
| RD | 6.5–8% | None | Taxable as income | High |
| PPF | 7.1% | None | Fully tax-free | Low (15-year lock-in) |
| SIP (Equity) | 10–15% (historical) | Market risk | LTCG 10% above ₹1L | High (3-day redemption) |
🏦 FD & RD Calculators
Calculate maturity, interest, and compare multiple FD rates side by side.
FD Calculator → RD Calculator →5. Income Tax Calculator — Old vs New Regime
India introduced a simplified New Tax Regime in 2020 with lower rates but fewer deductions. The Old Regime maintains higher rates but allows deductions under 80C, HRA, home loan interest, and more. Choosing the right regime can save you significant tax.
New Regime Slabs (FY 2024-25)
| Income Slab | New Regime Tax Rate |
|---|---|
| Up to ₹3 lakh | Nil |
| ₹3 lakh – ₹7 lakh | 5% (+ 87A rebate — effectively nil up to ₹7L) |
| ₹7 lakh – ₹10 lakh | 10% |
| ₹10 lakh – ₹12 lakh | 15% |
| ₹12 lakh – ₹15 lakh | 20% |
| Above ₹15 lakh | 30% |
When to Choose Old Regime
The old regime is better if your total deductions exceed approximately ₹3.75 lakh, including:
- Section 80C investments: ₹1.5 lakh (PPF, ELSS, LIC, home loan principal)
- HRA exemption
- Home loan interest: up to ₹2 lakh
- NPS contribution: up to ₹50,000 (Section 80CCD)
- Health insurance premium: up to ₹25,000–₹75,000 (Section 80D)
🧾 Income Tax Calculator
Compare old vs new regime instantly. Enter your salary, deductions, and see your tax liability.
Open Income Tax Calculator →6. Other Financial Tools
7. Which Calculator Should I Use?
| If you want to… | Use this calculator |
|---|---|
| Grow wealth long-term through mutual funds | SIP Calculator |
| Plan a home, car, or personal loan | EMI Calculator |
| Save tax safely with government guarantee | PPF Calculator |
| Park money safely for a fixed period | FD Calculator |
| Save monthly without a lump sum | RD Calculator |
| Reduce your income tax liability | Income Tax Calculator |
| Understand your purchasing power over time | Inflation Calculator |
| Compare two loan offers | Loan Comparison |
| Know your net worth | Net Worth Calculator |