Investment Calculators Hub (2026)
Complete collection of free investment calculators: ROI, portfolio analysis, compound interest, dividends, and FIRE planning.
Returns & ROI
Calculate investment returns and ROI
Portfolio & Allocation
Portfolio analysis and asset allocation
Stocks & Dividends
Stock and dividend investment tools
Retirement & FIRE
Retirement and financial independence calculators
FAQ
How do I calculate investment ROI?
ROI = (Final Value - Initial Cost) / Initial Cost × 100. Use investment-return-calculator for time-weighted returns including dividends. For annualized ROI, use compound-interest calculator with your investment period.
What is compound interest and why does it matter?
Compound interest is interest earned on previously earned interest. Over long periods, compounding dramatically accelerates growth. Use compound-interest calculator to see how $10,000 grows at 7% over 30 years.
How do I build a diversified portfolio?
Diversification spreads risk across asset classes (stocks, bonds, real estate). Use asset-allocation-calculator to find optimal mix based on age and risk tolerance. Typical rule: stocks allocation = 100 - your age.
What is FIRE and how do I calculate my freedom number?
FIRE (Financial Independence, Retire Early) requires savings of 25× annual expenses. Use fire-calculator to determine timeline based on current savings, expected returns, and target expenses.
Last updated: 2026-04-23. All calculators are for planning purposes. Consult a financial advisor for specific investment advice.