The Purdue grade-point table
Grade-point values are per credit hour. GPA = Σ(grade points × credits) ÷ Σ(graded credits), excluding the non-GPA symbols below.
| Letter | Grade points | Notes |
|---|---|---|
| A+ | 4.0 | Same as A — no bonus |
| A | 4.0 | |
| A− | 3.7 | |
| B+ | 3.3 | |
| B | 3.0 | |
| B− | 2.7 | |
| C+ | 2.3 | |
| C | 2.0 | |
| C− | 1.7 | |
| D+ | 1.3 | |
| D | 1.0 | |
| D− | 0.7 | |
| E / F / IF | 0.0 | Failure / Incomplete-converted-to-F |
P, N, I, PI, SI, W, WU, WF, IN, IU, AU, NS are not included in the index.
Repeated courses
Purdue: all attempts appear on the transcript, but only the most recent attempt counts in the cumulative GPA. Failing the most recent attempt removes credit even if an earlier attempt passed. A Purdue course cannot be retaken outside Purdue for grade replacement.
Worked example
Worked example. A+ (3 credits) + D− (3 credits) = (4.0 × 3) + (0.7 × 3) = 12.0 + 2.1 = 14.1 quality points ÷ 6 credits = 2.35 GPA. The calculator starts with exactly these two courses. Note the A+ contributed 4.0 per credit, not 4.33 or 4.3.
Assumptions on this page
- All credits are GPA-bearing letter-graded credits. Excluded symbols are left out by the calculator.
- No repeats in the main table. Repeated courses use the repeat widget below, which applies Purdue’s most-recent-counts rule.
- Display rounding: the displayed GPA is rounded to two decimals (presentation rounding).
Common mistakes
- Giving A+ a bonus. Purdue’s Registrar says A+ and A both equal 4.0. Secondary pages implying 4.33 or 4.3 are wrong.
- Averaging repeated attempts. Purdue counts only the most recent attempt in the cumulative GPA.
- Retaking outside Purdue for replacement. A Purdue course cannot be retaken outside Purdue for grade replacement.
- Applying a percent scale. Purdue’s Registrar publishes grade-point weights, not percent bands.
- Counting W or P in the index. W, P, N, I, and the other listed marks are not included in the index.
Source: Purdue Office of the Registrar — Grading Systems. Compare schools: How to Calculate University GPA. Percent to letter: Percentage to Letter Grade Calculator.