InvestingCurve / Financial Calculators
INTERACTIVE FINANCIAL SUITE 7 Real-Time Mathematical Calculators · Updated for FY 2026-27

Financial Calculators & Freedom Simulators

Zero-jargon, mathematically accurate modeling tools. Simulate mutual fund SIP compounding, loan EMIs, EPF/PPF retirement accumulations, and side-by-side Income Tax Regimes.

Educational Guide ↓

Mutual Fund SIP Calculator

SYSTEMATIC INVESTMENT PLAN
Monthly Investment Amount
₹
Expected Annual Return (CAGR)
%
Time Horizon (Years)
Yr
Compounding Formula: M = P × [ (1 + i)^n - 1 ] / i × (1 + i)
Assumes monthly compounding on auto-payday debit. Historically, Nifty 50 TRI has delivered 12.4% rolling CAGR across 15-year periods.
EXPECTED MATURITY CORPUS
₹75.68 Lakhs
Estimated total wealth accumulated at the end of the investment horizon.
TOTAL AMOUNT INVESTED
₹27.00 L
ESTIMATED WEALTH GAINED
₹48.68 L
● Invested: 35.6% ● Returns: 64.4%
InvestingCurve Simulator · Pure Mathematical Projection

Loan EMI Calculator

HOME / CAR / PERSONAL LOAN
Loan Principal Amount
₹
Annual Interest Rate (APR)
%
Loan Tenure (Years)
Yr
Amortization Formula: EMI = P × r × (1 + r)^n / [ (1 + r)^n - 1 ]
Early EMIs are over 75% interest payments. Prepaying just 1 extra EMI per year can shave up to 4.5 years off a 20-year home loan.
MONTHLY EMI PAYMENT
₹43,391
Fixed monthly installment debited across the entire tenure.
PRINCIPAL BORROWED
₹50.00 L
TOTAL INTEREST PAYABLE
₹54.14 L
● Principal: 48% ● Total Interest: 52%
TOTAL LIFETIME REPAYMENT
₹1.04 Crore

Compound Interest Snowball

LUMPSUM + CONTRIBUTIONS
Initial Lumpsum Principal
₹
Monthly Addition
₹
Annual Interest Rate
%
Compounding Horizon (Years)
Yr
TOTAL COMPOUNDED WEALTH
₹1.03 Crore
Initial principal plus disciplined contributions compounding continuously.
TOTAL OUT-OF-POCKET CASH
₹26.00 L
COMPOUND INTEREST GAINED
₹77.10 L
● Cash: 25% ● Compounding: 75%
The Rule of 72: At 11% CAGR, your portfolio doubles roughly every 6.5 years (72 ÷ 11). Over 20 years, your capital experiences over 3 full doubling cycles!

Income Tax Estimator (FY 2026-27)

NEW VS OLD REGIME COMPARISON
Annual Gross Salary
₹
Old Regime Deductions (80C + 80D + HRA)
₹
Key Differences (FY 2026-27):
• New Regime: Standard Deduction of ₹75,000. Full tax rebate up to ₹7,00,000 net income.
• Old Regime: Standard Deduction of ₹50,000, but allows 80C (₹1.5L), 80D medical, and HRA exemptions.
RECOMMENDED REGIME
NEW REGIME IS CHEAPER
Saves ₹26,000 in annual tax out-of-pocket.
NEW REGIME TAX (WITH CESS)
₹1,32,600
Std Deduction: ₹75,000
OLD REGIME TAX (WITH CESS)
₹1,58,600
Std Ded + 80C + 80D
TAKE-HOME PAY (NEW REGIME)
₹1,13,950 / month

Public Provident Fund (PPF)

7.1% GOVT BACKED · EEE TAX FREE
Yearly Investment (Max ₹1.5 Lakh)
₹
Duration (15-Year Base + 5-Yr Extension)
Yr
Government Sovereign Guarantee: Current interest is 7.1% compounded annually. 100% immune from court attachment under the PPF Act. Complete EEE tax status.
MATURITY CORPUS (TAX FREE)
₹40.68 Lakhs
Zero tax on interest, zero tax on final withdrawal under Section 10(11).
TOTAL CAPITAL DEPOSITED
₹22.50 L
SOVEREIGN INTEREST EARNED
₹18.18 L
PRO TIP: THE 5TH OF THE MONTH RULE
Deposit between the 1st and 5th of April (or monthly) to earn interest on that month's full balance!

EPF Calculator (Employees' Provident Fund)

8.25% STATUTORY COMPOUNDING
Current Monthly Basic + DA
₹
Current Age
Yrs
Expected Annual Salary Hike
%
ESTIMATED RETIREMENT EPF CORPUS (AGE 58)
₹1.84 Crore
Combined employee (12%) and employer (3.67% EPF) shares compounding at 8.25% p.a.
TOTAL EMPLOYEE SHARE
₹68.50 L
ACCUMULATED INTEREST
₹94.20 L
Mandatory Compounding: Employee contributes 12% of Basic, while employer puts 3.67% to EPF and 8.33% (up to ₹1,250) to EPS pension.

Retirement Freedom Number Calculator

INFLATION-ADJUSTED FREEDOM
Current Monthly Expenses
₹
Current Age / Planned Retirement Age
/
Expected Inflation Rate
%
YOUR TARGET FREEDOM CORPUS
₹7.24 Crore
Total capital required at retirement to maintain standard of living until age 85.
EXPENSES AT RETIREMENT
₹2.57 L / mo
REQUIRED MONTHLY SIP TODAY
₹38,200 / mo
The Real Math of Inflation: At 6% inflation, ₹60,000 monthly living costs will require over ₹2.57 Lakhs per month in 25 years. Automating your SIP bridge today ensures financial peace.
SIP STRATEGY & EQUITIES 3 Pillar Reference · History, Use & Potential

Systematic Investment Plan (SIP)

01
CHRONOLOGICAL GENESIS

Brief History

02
CONTEMPORARY 2026 PRACTICE

Current Use

03
COMPOUNDING ALPHA

Potential Benefits