Healthcare & Medical Costs / Healthcare Planning

Medical Payment Plan Interest Calculator

Implementation Specifications

This calculator is planned and documented. The formulas and guidance below are ready for implementation.

Required Inputs

  • Total bill amount
  • Payment term (months)
  • Interest rate (APR)
  • Monthly payment amount

Formulas & Calculations

If given payment: Total paid = Payment × Months
Total interest = Total paid - Bill amount
If given term: Monthly payment = Bill × [r(1+r)^n] / [(1+r)^n - 1]
Effective interest cost = (Total paid - Bill) / Bill × 100

Status: Specification complete, implementation pending

To implement: Create app/components/calculators/medical-payment-plan-interest-calculator.tsx and register in app/lib/calculator-registry.ts