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//// Financial · Student Loans

What Will Your Student Loan Really Cost You?

You borrowed $30,000. You'll pay back $47,000. See every dollar of interest, every month of payments, and what extra $50/mo does.

401(k) Limit 2024$23,000
Roth IRA Limit$7,000
S&P 500 Avg Return~10%/yr

You borrowed $30,000. You'll pay back $40,143.87. Here's why.

$9,318.87 in interest — 31.1% of what you originally borrowed

Quick Presets

Loan Details

Repayment Plan
Loan Type
Monthly Payment
$334.53
10-year plan
Total Paid
$40,144
Started with $30,000
Total Interest
$9,319
Over 120 months
Interest vs Loan
31.1%
The "wow" number

Where Your Money Goes

Principal 77%
Interest 23%
Principal: $30,825Interest: $9,319

Extra Payment Comparison(showing +$50/mo for reference)

ScenarioMonthlyTotal PaidMonthsInterest Saved
Base plan$334.53$40,144120
+$50/mo$384.53$38,508101$1,636

Adding $50/mo saves you $1,636 in interest and pays off 19 months earlier.

Heads up: Public Service Loan Forgiveness (PSLF) forgives remaining balances after 120 qualifying payments. Income-driven repayment plans forgive remaining balances after 20–25 years. Visit studentaid.gov for details.