Preserve the raw record
Do not replace a transcript credit with 1.0, 0.5, or 0.33 just because a course lasted a year, semester, or trimester. Local credit systems differ, and the same number may serve a different purpose from the unit used in a GPA denominator.
Store the original course title, grade, local credit, term, and designation before applying any transformation.
Keep three unit fields separate
| Field | Meaning |
|---|---|
| Raw local credit | Exact value printed by the issuing school |
| Normalized course unit | Optional comparison/research unit with a documented factor |
| GPA denominator weight | Unit the named GPA formula actually uses |
These values may match, but do not assume they do.
Carnegie units are not a universal input command
The Carnegie Foundation describes one Carnegie Unit as typically representing 120 hours of study. NCES uses Carnegie units to normalize heterogeneous transcript credits for research, with a year represented as one unit and a semester as one-half.
That makes Carnegie units useful for a named normalization. It does not authorize overwriting every student's local credits or prove that the school calculates GPA with those units.
If normalization is needed, save:
- the source convention;
- the raw local value;
- the conversion factor;
- the normalized value; and
- the purpose of the normalized result.
Local credit conventions still require a local source
The California Department of Education says local districts establish diploma units. It notes that many California public high schools use ten local units for one Carnegie unit and five for a semester, while districts vary.
Therefore, never divide a California transcript value by ten based only on the state. Verify the district factor and keep the original value.
Course designation and GPA bonus are different fields
Store the transcript designation exactly as issued. Then attach a separate bonus only when the school or district's current policy names that course or code.
Do not hard-code a universal hierarchy such as Regular, Honors, AP, IB, and Dual Enrollment. A named district can use different categories, and a recipient can calculate a different admission GPA.
Verify AP status independently
College Board's AP Course Ledger identifies courses authorized through AP Course Audit. AP authorization permits the AP designation on transcripts; it does not define the local GPA bonus.
Do not relabel “Pre-AP,” “AP-style,” or another advanced course as Honors by default. Use two fields:
- AP authorization status; and
- local GPA treatment with its school/district source.
If either field is unknown, mark it unresolved.
Preserve IB grades and designations
IB states that it does not provide or endorse a universal IB-to-A–F or IB-to-4.0 conversion for the decentralized U.S. system. Store SL/HL and the issued grade as recorded, then apply only a named local or recipient rule.
Dual enrollment can create two records
A dual-enrollment course may appear in high-school and college records with different credit units. Keep both raw records. Separately verify:
- high-school graduation credit;
- high-school GPA treatment;
- college transcript credit;
- a target institution's transfer equivalency; and
- any recipient-specific admission calculation.
Do not convert college credits into high-school credits or infer a GPA bonus without an official rule.
Minimum calculator input record
| Field | Required treatment |
|---|---|
| Authority and effective year | identify the policy owner |
| Course code/title | preserve locally; no analytics transmission |
| Grade symbol | retain the raw symbol |
| Raw local credit | never overwrite |
| Optional normalized unit | include source and factor |
| GPA denominator weight | use only the named formula |
| Transcript course designation | preserve exactly |
| Bonus and eligibility | separate sourced fields |
| Special status | P/F, repeat, transfer, incomplete, unknown |
For weighting policy setup, see the weighted GPA guide. For course inclusion, use what counts in GPA.
FAQ
Is a full-year high-school course always one credit?
No. One Carnegie Unit is a named time-based convention, but local transcripts can use different units.
Should every semester course be entered as 0.5?
Use the transcript's raw value and the GPA policy's denominator rule. Normalize only with a documented factor.
Is an AP course always worth an extra point?
No. AP authorization and local GPA weighting are separate decisions.
Should Pre-AP be entered as Honors?
Not by default. Verify the local designation and bonus; otherwise mark the field unresolved.
Does dual enrollment use college or high-school credits?
It can create both records. Preserve both and select the units required by the specific GPA or transfer policy.