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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

4.7%

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

Interest Added per Month (now)

£176

Interest Added per Year (now)

£2,112

Balance After 5 Years

£56,876

Assuming no repayments made

Total Interest Added

£11,876

Over the 5-year period

Start: £45,000End: £56,876

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%.