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Investing & Retirement Calculators

Project portfolio growth, plan retirement contributions, and evaluate investment opportunities.

These investing and retirement calculators project how your money grows over time. Estimate compound growth, plan 401(k) and Roth IRA contributions, model retirement withdrawals, and run present-value and return numbers - all using standard, transparent formulas so you can compare scenarios side by side.

Compound Interest Calculator
Calculate compound interest growth over time based on rate, contributions, and frequency.
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Simple Interest Calculator
Compute simple interest based on principal, rate, and time.
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401(k) Calculator
Estimate your 401(k) balance at retirement based on contributions, employer match, and investment growth.
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Roth IRA Calculator
Project your Roth IRA balance at retirement based on contributions, annual return, and optional contribution increases.
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Retirement Withdrawal Calculator
Estimate annual and monthly withdrawals, total income drawn, and projected portfolio longevity based on your balance and withdrawal rate.
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Net Present Value Calculator
Calculate NPV for any project or investment by discounting up to 10 years of cash flows at your required rate of return.
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ROI Calculator
Measure return on investment: enter your initial and final value to get total ROI %, net profit, and annualized return (CAGR).
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CD Calculator
See what a certificate of deposit is worth at maturity: enter your deposit, APY or nominal rate, and term for interest earned and year-by-year growth.
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Future Value Calculator
Project what money today will be worth later: enter a starting amount, rate of return, time horizon, and optional contributions for the future value and year-by-year growth.
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