Gouri Insights

Professional-grade calculators and geospatial tools to optimize your wealth and energy strategies.

Wealth Builders

Calculate SIP returns and FD/Lumpsum maturity values with interactive charts.

Loan EMI Analyzer

Plan your borrowing with professional reducing-balance EMI schedules and prepayment simulations.

FIRE & Retirement

Map your financial independence journey and calculate your target corpus using the 4% rule.

Solar Reliability

Analyze solar efficiency, geospatial feasibility data, and backup power requirements.

Schemes & Subsidies

Discover government programs and calculate their true impact on your wealth and energy ROI.

Latest Financial Insights

Deep dives into the pure math behind popular financial advice.

New Guide

Mathematical Proof: Prepaying a 9% Home Loan vs. SIP

Stop guessing. See the exact amortization mechanics and find out why the "12% is greater than 9%" argument is mathematically incomplete.

Read the Math →