About TinyThink
Free financial tools for Indian investors
What is TinyThink?
TinyThink is a free, ad-supported suite of financial calculators built for Indian investors. Calculations run entirely in your browser — only the optional Artha AI coach sends anonymous numbers to Google Gemini to generate insights.
Built by an Indian developer who got tired of clunky, ad-heavy calculator sites that bury the answer in endless forms. TinyThink aims to be fast, honest, and useful.
Tools
- SIP Planner
Project your SIP corpus with inflation, step-up, LTCG tax, and Monte Carlo simulation.
- EMI Calculator
Calculate home, car, or personal loan EMIs with full amortization schedules.
- Goal Planner
Reverse-engineer the SIP you need to reach any financial goal by a target date.
- FIRE Calculator
Find your FIRE number using the 4% safe withdrawal rule and Coast FIRE projections.
- Retirement Planner
Plan monthly savings needed to fund your retirement years at any desired lifestyle.
- Future Expense Planner
Calculate how much any future cost will be in today's money after inflation.
- AMC Directory
Browse India's major fund houses by AUM with direct links to their official websites.
- Reality Check
Scroll through three real Nifty 50 crash-and-recovery periods to see how SIPs behave in a downturn.
- Artha Finance Academy
Quiz yourself on 32 key investing concepts across mechanics, tax, loans, FIRE, and markets.
Data sources
- Mutual fund NAV & returns — fetched from mfapi.in (public AMFI data mirror, updated daily)
- SEBI TER limits — sourced from SEBI and AMFI India
- Tax rates — LTCG 12.5%, STCG 20%, ₹1.25L exemption per Finance Act 2024. Next review Feb 2027.
Disclaimer
TinyThink is for informational and educational purposes only. Nothing on this site constitutes financial advice, investment advice, or a recommendation to buy or sell any security or financial product. Always consult a qualified financial advisor before making investment decisions. Past returns do not guarantee future performance.
Contact
Feedback or bugs? Email hello.tinythink@gmail.com