Rule of 72 Calculator: Estimate Investment Doubling Time
The Rule of 72 lets you estimate doubling time by dividing 72 by your annual return—an 8 % return doubles money in roughly nine years (J.P. Morgan Guide to Markets, 2023).
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Cost of Equity Calculator: Optimize Your Investment Strategy
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Doubling Time Calculator: Discover How Fast Your Money Grows
Enter your annual interest rate, press “Calculate,” and the tool returns the exact years needed for your money to double; for example, at 7 % it takes roughly 10.24 years (Investopedia, 2023). It uses the natural-log formula, not the rough Rule of 72.
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Use the Monthly EMI Calculator to preview fixed loan payments in seconds. Enter loan amount, annual rate and term; the tool applies the annuity formula to return your monthly cost, total interest and overall repayment. Example: a $25,000 loan at 4.8% for 60 months equals ≈ $464 per month—exactly what U.S. auto borrowers pay on average (Experian Auto Finance Report 2023).
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Enter your amount, expected inflation, and years; the calculator instantly shows your future spending power. At 3 % inflation, $10,000 today buys goods worth about $7,437 after 10 years (BLS CPI Calculator, 2024).
Sharpe Ratio Calculator: Measure Risk-Adjusted Portfolio Performance
The Sharpe Ratio shows how much excess return you earn for every “unit” of portfolio risk—values above 1.0 mean good risk-adjusted performance (Investopedia, 2023). Use our calculator by entering your portfolio’s annual return, the current risk-free rate, and its standard deviation; the tool instantly displays the ratio so you can compare strategies side-by-side.