🎓 Education

GPA Calculator

Add each course with its letter grade and credit hours, then press Calculate to get your weighted grade point average on the 4.0 scale.

Written and reviewed by SM Arijul Islam · Last reviewed 21 October 2026 · Editorial standards · Report an error

Courses Grade × credits determines how much each course pulls your GPA.

Course

Grade

Credits

Previous GPA (optional)

Previous credits (optional)

How GPA is calculated

Each grade is converted to a grade point on the 4.0 scale, multiplied by the credit hours of the course to give "quality points", then everything is divided by the total credits. That is why a 4-credit course affects your average more than a 1-credit one.

GPA = total quality points ÷ total credit hours

Common conversions

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 = 1.0 · F = 0.0
Many institutions also treat A+ as 4.0 rather than 4.3

If you provide a previous GPA and its credits, the result is a cumulative GPA combining past and current study.

Worked example

An A (4.0 grade points) in a 3-credit course and a B (3.0) in a 4-credit course gives (4.0 × 3 + 3.0 × 4) ÷ 7 = 24 ÷ 7, a GPA of about 3.43. The heavier course pulls the average more, because it carries more credits.

GPA = sum of (grade points × credits) ÷ total credits.

Everyday uses

Tracking academic standing through a term
Scholarship and postgraduate applications
Planning which courses to prioritise
Comparing a weighted and unweighted average
Converting a local grade scale for study abroad

Frequently asked questions

What is a weighted GPA?

One that accounts for credit hours or course difficulty, so a demanding or long course influences the average more than a short one.

Does everyone use a 4.0 scale?

No. Many countries use 10-point, 5-point or percentage scales, so conversions are approximate unless your institution publishes a table.

How can I raise my GPA most quickly?

Focus on the highest-credit courses. Improving a heavy course moves the average further than the same improvement in a small one.

Is a 3.5 GPA considered good?

It is competitive for many programmes, but requirements vary widely between institutions and fields.

More worked examples

Three courses — A in a 3-credit class, B+ in a 4-credit class and A− in a 2-credit class — give (4.0 × 3 + 3.3 × 4 + 3.7 × 2) ÷ 9 = 3.62.
Raising a B to an A in a 4-credit course adds about 0.44 to a 9-credit term.
An A in a 1-credit lab moves the same average only 0.11, which is why credit weighting matters.
Two terms of 3.5 followed by one of 3.8 give a cumulative GPA of 3.6 when the terms carry equal credits.

Typical 4.0 grade scale

A typical United States four-point grade scale
Letter grade	Grade points
A / A+	4.0
A−	3.7
B+	3.3
B	3.0
B−	2.7
C+	2.3
C	2.0
D	1.0
F	0.0

Common mistakes to avoid

Averaging grade points without weighting by credits — a 4-credit course counts twice as much as a 2-credit one.
Mixing your institution's scale with a generic one; some schools omit A+ or use different points.
Applying a generic percentage-to-GPA formula when your school publishes its own table.
Forgetting how a repeated course is treated, which differs between replacement and averaging policies.

Further questions

How do I convert a percentage to a 4.0 GPA?

Only through your institution's published conversion table. There is no universal formula, and third-party charts vary.

Do pass/fail courses affect GPA?

Usually not, unless your school explicitly counts them. Check the policy in your course handbook.

What GPA do graduate programmes expect?

It varies widely. Many quote a 3.0 minimum, while competitive programmes often look for considerably more.

Can a weak first term be recovered?

Yes. Because the cumulative average weights every credit equally, strong later terms steadily pull it up.

Assumptions and limits

There is no universal GPA scale. This calculator applies the grade points shown in its dropdowns to the credit hours you enter, then divides quality points by total credits. Institutions differ in how they treat plus/minus grades, repeated courses, pass/fail credit, transfer credit and weighting.

Your institution’s registrar or academic catalogue is the authoritative source for the scale and rules that apply to your programme.

3.5 GPA in percentage

On a 4.0 scale, 3.5 GPA in percentage is 87.5%, because 3.5 ÷ 4 × 100 = 87.5. That conversion is arithmetic, not an official mapping: universities grade in bands, so a 3.5 often sits inside the A− band rather than exactly at 87.5%.

GPA on a 4.0 scale converted to percentage
GPA (4.0)	Percentage	Usual letter band
4.0	100%	A
3.7	92.5%	A−
3.5	87.5%	A− / B+
3.0	75.0%	B
2.5	62.5%	C+
2.0	50.0%	C

When a form asks for a percentage and your transcript only shows GPA, state the method you used — institutions differ, and a 3.5 GPA can be reported anywhere between 85% and 90% depending on the published table.