What weighted HS GPA calculation methods have you seen?

What weighted HS GPA calculation methods have you seen, both at high schools and at colleges that recalculate HS GPA?

Examples:

University of California recalculation: using 10th-11th grade academic (“a-g”) courses, +1 for UC-designated honors (including AP and most IB) courses and transferable college courses, three variants (unweighted, weighted-capped (up to 8 semesters of +1 honors points, most commonly seen on UC web sites), fully weighted). Calculator here: GPA Calculator for the University of California – RogerHub

California State University recalculation: same as University of California weighted-capped recalculation, except that a semester college course counts as two courses with two grades. One campus (San Luis Obispo) includes 9th grade courses and grades.

University of Central Florida recalculation: using academic courses with +1 for AP / IB / AICE / DE and +0.5 for pre-AP / pre-IB / pre-AICE: FAQ:How is my high school GPA calculated for admission?

University of Florida recalculation: using academic courses and weighted as described at How will UF compute my high school GPA? » Questions » University of Florida , but weighting values are not given.

South Carolina standardized HS GPA calculation: https://ed.sc.gov/tests/tests-files/eocep-files/uniform-grading-policy-february-2018/

Here’s one I bet you haven’t seen before, for a weighted GPA.

Honors, College In High School (CHS = Dual Enrollment), and AP courses add 0.04, 0.06, and 0.08 points to your GPA for a 1.0 credit class (0.5x for half year, 1.4x for a 7 period-per-week science lab course). Capped at 0.26, 0.34, 0.48, and 0.48 in 9th/10th/11th/12th grade, respectively. Weighting is limited by year, not pro-rated by quarter/semester. C or better required to earn the extra weighting.

So a maximum 5.56 graduating weighted GPA.

This is the “simplified” weighting process put in place two years ago.

(Unweighted GPA is just A=4, B=3, etc., weighted by number of credits.)