High School GPA Calculator with Credits and Custom Weighting
Calculate unweighted and weighted high-school GPA using course credits, your school’s grade points, editable Honors/AP bonuses and bonus eligibility rules.
Your inputs
Use your school’s numeric grade-point mapping. Defaults are an illustrative policy; verify them before calculating.
Your result
Enter your values, then choose Calculate.
No universal grade conversion is assumed. Course credits and school rules determine the result.
Calculation breakdown
Method, assumptions and worked example
Enter numeric grade points from your school’s scale. The calculator does not assume that every school uses the same letter or percentage conversion. Course credits determine how much each course contributes.
GPA formula
Unweighted GPA = sum of base grade points × credits ÷ included credits. Weighted GPA uses points after the entered course-type bonus, subject to your minimum eligible base points and course cap. “Unweighted” still uses credits; it means no Honors/AP bonus.
Worked example with unequal credits
Enter base points 4 for a one-credit regular course, 3 for a one-credit Honors course and 2 for a half-credit regular course. Unweighted quality points are 4 + 3 + 1 = 8 across 2.5 credits: GPA is 3.20. With an eligible Honors bonus of 0.5, weighted quality points are 4 + 3.5 + 1 = 8.5: weighted GPA is 3.40.
Match the school policy
The example settings use a 4.0 base scale, 0.5 Honors bonus, 1.0 AP/IB bonus, minimum base points of 1.0 for bonuses and a 5.0 course cap. These are editable assumptions, not universal school rules. A failing grade of 0 receives no bonus under those defaults. If your school has other eligibility conditions, enter adjusted points as Regular or exclude courses according to its policy.
Set Include to No for a course excluded from GPA, such as a pass/fail course that your school excludes. Its points and credits are ignored. An included F with zero grade points and positive credits must still count; do not exclude failures unless your school’s policy explicitly requires it.
Cumulative GPA
Enter all included courses from the terms being combined. Do not average term GPAs equally when credit totals differ. Repeat-course replacement, grade forgiveness and school-specific plus/minus conversion are not inferred. The result is a planning estimate; your transcript remains the official record.
Frequently asked questions
Why do credits matter?
A one-credit course has twice the influence of a half-credit course. The former equal-course averaging did not capture that difference.
Do failing advanced courses automatically get bonus points?
No. Bonuses apply only at or above your entered eligibility threshold. The default threshold of 1 excludes a base score of zero.
Can I use my school’s own grade-point scale?
Yes. Enter its numeric base points, scale maximum, bonuses, eligibility threshold and cap. Special rules must be reflected in the values or course inclusion you choose.
Method review and references
Formula and content reviewed on 10 October 2026. Worked examples are hypothetical. School rules or individual health needs may differ from the stated assumptions.