Medical School Loan Calculator: Monthly Payment Post-Residency
Work out the monthly payment and total interest on medical school debt — the bill that lands at the end of residency for most US physicians, often $200k to $400k+ at graduation.
Adjust the inputs and select Calculate for a full breakdown.
Year-by-year amortization schedule
Compare Common Scenarios
How the numbers shift across typical situations for this calculator:
| Scenario | Monthly payment | Total interest | Total of payments |
|---|---|---|---|
| $200k · 7% · 20-year | $1,550.60 | $172,143.49 | $372,143.49 |
| $300k · 8% · 20-year | $2,509.32 | $302,236.85 | $602,236.85 |
| $150k · 6% · 10-year (aggressive) | $1,665.31 | $49,836.90 | $199,836.90 |
| $400k · 7.5% · 25-year (high debt) | $2,955.96 | $486,789.41 | $886,789.41 |
How This Calculator Works
Enter the total loan balance at graduation, the APR (or weighted average if multiple loans), and the repayment term. The calculator turns the APR into one constant monthly payment using the amortization formula and shows total interest paid across the loan. The figure is standard repayment — income-driven plans and PSLF can change the math substantially.
The Formula
Fixed-Rate Amortization
P = loan amount, r = monthly rate (APR ÷ 12), n = number of monthly payments
Worked Example
A $200,000 medical school loan at 7% APR over 20 years gives a monthly payment of about $1,551. Total payments come to roughly $372,100 over 20 years — interest adds about $172,100. Aggressive 10-year payoff at the same rate raises monthly payment to ~$2,323 but cuts total interest to ~$78,800.
Key Insight
Medical school debt strategy depends on specialty, income trajectory, and PSLF eligibility. High-income specialties (surgery, anesthesiology, radiology) can typically pay off in 5 to 10 years post-attending. Primary care physicians at 501(c)(3) hospitals may benefit from income-driven repayment + PSLF (10 years of qualifying payments → forgiveness). Refinancing federal loans to private gives lower rates but forfeits PSLF and income-driven options — usually a one-way door.
Frequently Asked Questions
How much do medical students borrow?
AAMC reports US median medical school debt around $200k to $240k as of 2024, with about 75% of graduates carrying debt. Top-debt graduates (private schools, no scholarships) often exceed $300k. Add undergraduate debt for some students.
What rate should I expect?
Federal Grad PLUS: currently around 8% to 9% APR. Federal Stafford grad: 7% to 8%. Private refinance for attending physicians with good credit: 5% to 8% — often the cheapest option, but forfeits federal protections.
Should I refinance to private?
Only after considering PSLF eligibility carefully. If working at a qualifying nonprofit hospital and pursuing PSLF, federal loans (income-driven + PSLF) often beat private refinance over 10 years. For private-practice or non-qualifying employers, private refinance usually wins on total cost.
What is PSLF?
Public Service Loan Forgiveness — 10 years (120 monthly payments) of qualifying payments while working full-time for a qualifying nonprofit or government employer can forgive the remaining federal loan balance tax-free. Many academic medical centers and 501(c)(3) hospitals qualify.
Standard vs income-driven repayment?
Standard 10-year: highest monthly payment, lowest total interest. Income-driven (PAYE, REPAYE, SAVE): lowest monthly payment, highest total interest. With PSLF: income-driven minimum payments for 10 years, then forgiveness — often the cheapest path for qualifying borrowers.
Related Calculators
Methodology & Review
Payments use the standard fixed-rate amortization formula. The calculator assumes a fixed APR and standard repayment plan. Income-driven plans (PAYE, REPAYE, SAVE) and Public Service Loan Forgiveness produce dramatically different monthly payments and total cost — this calculator covers standard repayment only.
Written by Ugo Candido · Last updated May 17, 2026.