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Student Loan Interest Calculator

See how interest accumulates on your student loan over time and how it affects your balance.

About Interest Calculation

Uses plan rules (including Plan 2’s income banding) and compounds monthly with no repayments.

£

Plan 2 interest scales from RPI to RPI+3% based on income.

£

How far into the future to project (no repayments).

Assumptions
Used for Plan 1/4: lower of RPI or Base+1%

Interest is RPI at/below lower income, RPI+3% at/above upper; linear in between.

Interest Projection

Current Interest Rate

5.0%

Based on salary band (RPI 4.6% → RPI+3%)

Interest Added per Month (now)

£186

Interest Added per Year (now)

£2,237

Balance After 5 Years

£57,670

Assuming no repayments made

Total Interest Added

£12,670

Over the 5-year period

Start: £45,000End: £57,670

Related Calculators

Understanding Student Loan Interest

Each plan has different interest rules. Plan 2 scales with income; Plan 5 is RPI; Postgrad is RPI+3%; Plan 1/4 are the lower of RPI or Base+1%.