Opportunity Cost Calculatorby vzSeptember 9, 2025September 9, 2025 Opportunity Cost Calculator Monthly Opportunity Cost See what spending money today costs you in lost monthly earnings. YTD Annual Interest Rate (%) What are you being pitched to buy? Choose Spend Type: One-Time Spend Monthly Spend Amount to Spend ($) Monthly Amount ($) For How Many Months? Calculate Monthly Cost This purchase will cost you: in the first month of lost interest. Show 12-Month Projection Please enter valid positive numbers in all fields. 12-Month Growth Projection Month Lost Growth Total Value Lost
