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Grade Improvement Calculator

Model what repeating a course would do to your CGPA, under both replacement and averaging policies.

Studying at a specific university? Pick it here to load its exact scale.

Two policies, very different outcomes

Universities handle repeats in one of two ways, and the difference is large enough to change whether a retake is worth your time.

Replacement: the new grade substitutes the old one. Credits are counted once. This is the favourable case, repeating a 3-credit F as an A on a 3.00 CGPA over 30 credits lifts you to 3.40.

Averaging: both attempts stay on the transcript and both count. The same repeat produces 3.09 instead of 3.40, because you have added 3 credits to the denominator as well as 12 quality points to the numerator.

Check three things before you register for a repeat

  • Which policy applies. Replacement or averaging. This is the single biggest factor.
  • Whether the retake grade is capped. Many universities cap a repeated course at B or C regardless of your actual performance, which can halve the benefit.
  • Whether repeats are limited. There is often a cap on how many courses you may repeat across a degree, spend those slots on high-credit courses where the arithmetic pays most.

Where repeats pay most

The gain scales with credit hours and with the size of the grade jump. Repeating a 4-credit F is worth roughly four times as much as repeating a 1-credit F. Repeating a C+ to get an A− moves far less than turning an F into a B. If you have limited repeat slots, spend them on high-credit failures first.