MVA Minimum Viable Amount Calculator - Risk Planning

The MVA calculator uses MVA to mean Minimum Viable Amount: the investment amount and risk assumptions needed to frame a practical portfolio-planning scenario. Enter the total amount available, your risk tolerance, target annual return, market volatility, investment horizon, and confidence level. The calculator reports the amount placed at risk under that tolerance, expected annual gain, a compounded projected value, and a volatility range. It is intended for high-level planning conversations in which an investor wants to connect a minimum workable allocation with potential growth and uncertainty. Amount at risk is calculated as total investment × risk tolerance. Expected annual gain is total investment × target annual return. The projected value uses annual compounding, total investment × (1 + target annual return)^years. To summarize dispersion, the calculator computes a volatility range as projected value × market volatility × square root of years × confidence level. Percentages are converted to decimal form before these calculations. This is a scenario model rather than a statistical value-at-risk calculation, so it should not be interpreted as a probability-certified loss limit. The result helps separate different questions that are often conflated. Risk tolerance determines the portion of capital you are prepared to expose; target return determines the assumed growth rate; volatility describes the scale of variation around the scenario; and the horizon affects both compounding and uncertainty. A larger confidence input widens the displayed range in this simplified model. It does not use a distribution table, correlations, inflation, withdrawals, transaction costs, or changing allocations. Test a conservative, moderate, and aggressive case before deciding whether an investment amount is viable for your goals. Consider emergency reserves, debt, liquidity needs, and the possibility that markets produce returns unlike the target assumption. A small numerical range can look precise even when the assumptions are uncertain, so use rounded, defensible inputs and revisit them regularly. This calculator supports education and scenario comparison, not personalized investment advice or a promise of performance.