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PERSONAL & EDUCATION

Student loan calculator

Estimate unpaid simple interest accrued before repayment and later payments.

Example values are editable scenarios, not current offers. Enter your actual quoted terms.

Enter your scenario and select Calculate.

How this estimate works

Uses the entered rates and payment timing. Taxes and unentered costs are excluded. Estimates are not offers or eligibility decisions. During deferral no payments or subsidies are assumed. Simple interest accrues on original principal and is capitalized once when repayment begins. Federal income-driven plans, forgiveness and program-specific rules are not modeled.

Results use unrounded intermediate amounts; display and CSV round to cents. Actual lender rounding and day counts can differ. Inputs are calculated locally and are not submitted to our server.

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Scenario schedule

Periods are monthly unless this calculator specifies a different payment frequency. A final balloon is included in the final payment. See the model assumptions above.