GPA Calculator

How to use the GPA calculator

Start by choosing the view that matches your question. Course mode calculates unweighted and weighted GPA from letter grades, credits, and course rigour. Cumulative mode combines completed term GPAs with their credit loads. Target mode starts with your current GPA and credits, then tests the average required across the credits you plan to take.

In course mode, enter the credit attached to each class rather than giving every class equal influence. The engine converts the selected letter to grade points, multiplies those points by the course credits, totals the resulting quality points, and divides by graded credits. A larger course therefore moves the answer more than a smaller one carrying the same grade.

Mark a course excluded when it carries no grade points under the policy you are applying. The engine removes that course from both the quality-point numerator and the graded-credit divisor, while still showing its credits in total credits. Keeping a pass, audit, or withdrawal in only the divisor would make the hand-calculated GPA too low.

Weighted GPA is a separate output, not a correction to the unweighted figure. For a passing grade, the engine adds 0.5 points for honors or 1.0 point for AP or IB before multiplying by credits. An A in a 3-credit AP course therefore contributes 15 weighted quality points. An F remains 0.0 with every rigour selection.

Read the result as an estimate on the displayed rules. Course repeats, historical scales, special program calculations, transfer treatment, and other record policies can change an official GPA even when the arithmetic is correct. If your result must match a transcript, replace the default assumptions with the registrar’s published scale and confirm which attempts and course statuses count.

Why credits change the answer

A GPA does not average letter names or their point values one course at a time. It averages all course-level grade points after each is repeated according to its credits. This is why a 4-credit A has four times the influence of a 1-credit A, and why the credit field cannot be treated as optional detail.

Take a 4-credit A and a 1-credit C on the calculator’s default scale. The A contributes 4.0 × 4, or 16 quality points, while the C contributes 2.0 × 1, or 2. Together they produce 18 quality points across 5 credits, giving 3.60. Averaging 4.0 and 2.0 directly produces 3.00 instead.

The same numerator-and-divisor discipline controls exclusions. A course without usable grade points adds nothing to the numerator, so it must add nothing to graded credits either. The engine tracks all entered credits separately from graded credits, letting you see that a course was entered without quietly allowing it to depress the calculated GPA.

Why term GPAs need credit weights

A cumulative GPA is not normally the arithmetic mean of the term GPAs. Each term represents a different quantity of coursework, so its GPA must be multiplied by its credits before the terms are combined. Averaging the term figures directly is correct only when every included term carries exactly the same number of credits.

For a 3-credit term at 4.00 followed by an 18-credit term at 2.00, the first term contributes 12 quality points and the second contributes 36. The combined 48 quality points are divided by 21 credits, producing 2.29 to two decimal places. The shortcut average of 4.00 and 2.00 is 3.00.

Enter terms only when each term GPA and its associated credit count belong together. A transcript may show cumulative statistics beside an old term even though those statistics include later work, so use the actual term-only figures when available. If you instead have course grades, calculate from the courses and their credits to avoid mixing cumulative and term data.

How scale policy changes targets

The target calculation rearranges the same weighted-mean equation. It asks how many additional quality points are needed after accounting for the quality points already earned. With a 3.00 GPA over 60 credits and 15 planned credits, reaching 3.20 requires exactly 4.00 across the planned work on this calculator’s capped scale.

Raise that target to 3.30 and the required next-term average becomes 4.50. Because the engine’s target mode caps the attainable grade-point average at 4.00, it returns an unreachable result instead of displaying 4.50 as though it were actionable. A nonpositive calculated requirement becomes 0 because the target is already mathematically secured under the supplied inputs.

Institutional policies show why a single online table cannot be called the national scale. Rice changed A+ from 4.33 before fall 2018 to 4.00 beginning that semester. Memphis awards 4.00 for A+ or A but 3.84 for A−. Arizona State uses 4.33 for A+ while capping cumulative GPA at 4.00, which is a third pattern.

The formula, worked line by line

For each graded course, multiply its grade points by its credits to create quality points. Add those products, then divide by the sum of credits belonging to graded courses. The denominator is not the number of classes and is not every credit entered; it is the total credit weight that actually participates in this GPA.

The weighted calculation changes the point value before credit multiplication. Honors adds 0.5 to a passing grade, while AP or IB adds 1.0. Regular adds nothing. Because the bump enters before multiplication, a 4-credit AP course receives four times the added influence of a 1-credit AP course. A grade worth 0.0 receives no bump.

Cumulative mode performs the equivalent operation at term level: multiply each usable term GPA by that term’s credits, total those products, and divide by total usable term credits. Target mode solves the equation for the planned-term GPA, then reports no reachable value when the requirement exceeds the engine’s 4.0 ceiling.

course quality points = grade points × course credits
unweighted GPA = total quality points ÷ graded credits
weighted course points = grade points + rigour bump
weighted GPA = total weighted quality points ÷ graded credits
cumulative GPA = sum of term GPA × term credits ÷ total term credits
required GPA = target × total future credits − current GPA × current credits, then ÷ planned credits

Results can display to a chosen number of decimal places, but the underlying relationships remain credit weighted. When checking a transcript, follow the institution’s stated rounding or truncation practice instead of assuming the visible precision changes the grade-point scale. Small differences may come from policy values such as 3.67 versus 3.7, not from the weighted-mean formula.

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