McMaster GPA Calculator

Calculate your McMaster University GPA on the official 12-point scale (A+ = 12, A = 11, A− = 10 … D− = 1, F = 0). McMaster weights each course by its units, so a 6-unit full-year course counts twice as much as a 3-unit one. Add your courses to see your term or cumulative GPA — and its 4.0-scale equivalent.

Your courses

Your McMaster GPA

—
Total Units: 0Grade: —Scale: 12

Pick each course's McMaster grade and its units (most one-term courses are 3 units; full-year courses are 6). Add one term for your term GPA, or every course for your cumulative GPA.

Advertisement

What This GPA Means for You

McMaster runs on a 12-point GPA scale, not the 4.0 scale you'll see in the US. It's the number behind your Dean's Honour List standing, scholarships, and graduate and professional-school applications — where it usually gets converted to a 4.0. Here's how the 12-point number reads.

McMaster-specific read

12 is the top, and every grade step is worth a full point.

McMaster grades from A+ = 12 down to D− = 1 (the lowest pass), with F = 0. Your GPA is the units-weighted average of those values, so a 6-unit full-year course moves your GPA twice as much as a 3-unit term course. Because each grade step is a whole point, one grade up on a heavy course is a big lever.

  • Use the real 12-point values (A+ = 12, A = 11, A− = 10, B = 8, D− = 1).
  • Weight every course by its units, not by counting courses.
  • Aim for the 9.5 (Dean's Honour List) line, not a 4.0 or a 3.5.

McMaster GPA milestones (12-point)

12.0
Top of the scale

Straight A+ — the maximum GPA (= 4.0 on the US scale).

9.5+
Dean's Honour List

A GPA of 9.5+ on at least 30 units (27 in some faculties) earns Dean's Honour List standing.

4.0+
Good standing

A cumulative GPA around 4.0+ (a C− average) is generally needed to remain in good standing — check your programme.

1.0
Lowest passing grade

D− (1) is the lowest grade that passes a course (50%); F (0) is a fail.

How to Raise This McMaster GPA Fastest

The fastest move is the highest-unit course where one grade step lands — on the 12-point scale every single grade step (e.g. B→B+) is worth a full +1 per unit of the course.

Fastest move

Enter your McMaster grades and units to see the best upgrade.

Once you add at least one course, this section finds the grade change that lifts your GPA the most.

Current--
One upgrade--
Lift--
Entered-course GPA
--
Best one-step bump
--
If that course reaches A+
--

Tip: on the 12-point scale every grade step is a full point — lifting a 6-unit course one grade moves your GPA a lot.

1

Target the heavy course

Find the highest-unit course below your target grade — that's where one step moves the GPA most.

2

Chase the reachable step

One grade up (B→B+, +1) is usually more realistic than jumping two or three grades.

3

Protect the 9.5 line

If you're near the Dean's Honour List, defending a heavy course's grade can matter as much as chasing an A+.

McMaster GPA: Quick Overview

McMaster University GPA calculator — 12-point scale McMaster University · Hamilton, Ontario 12-point GPA scale · weighted by units A+ = 12
McMaster University — illustrative banner. KnowMyGPA is an independent tool and is not affiliated with or endorsed by McMaster University.

McMaster University in Hamilton, Ontario, uses a 12-point GPA scale — one of the more unusual systems in Canada, where A+ is worth 12 grade points and D− is worth 1. Your GPA is the average of those grade points, weighted by each course's units (McMaster's term for credits; a one-term course is usually 3 units and a full-year course 6).

This page mirrors McMaster's published method exactly: the full 12-point table with percentages, the official 12-to-4.0 conversion (which the calculator shows live for grad-school and US applications), how units weighting works, the Dean's Honour List cutoff, and the repeated-course rule that quietly changes your cumulative GPA.

The McMaster 12-Point Grade Scale (with 4.0 Equivalents)

GradeMarks (%)12-pointUS 4.0
A+90–100124.0
A85–89113.9
A−80–84103.7
B+77–7993.3
B73–7683.0
B−70–7272.7
C+67–6962.3
C63–6652.0
C−60–6241.7
D+57–5931.3
D53–5621.0
D−50–5210.7
F0–4900.0

D− (50%) is the lowest passing grade; F (0) is a fail. The right-hand column is the standard 12-to-4.0 conversion used for grad-school and US applications — the calculator above shows your live 4.0 equivalent under your result. Exact percentage boundaries can vary by course; check your course outline.

How Units Weighting Works at McMaster

McMaster measures course size in units, not credits, and your GPA is weighted by them. One unit is roughly one lecture hour per week for a term, so:

Course typeTypical unitsEffect on GPA
One-term course3 unitsStandard weight
Full-year course6 unitsCounts twice as much
Half/small course or lab1.5–2 unitsCounts less

Each course's course points = units × grade point. Your GPA = total course points ÷ total units. So a B (8) in a 6-unit course contributes 48 points, while a B in a 3-unit course contributes 24 — the heavy course moves your average twice as hard. Enter each course's real units above and this is handled for you.

Advertisement

Dean's Honour List & the Repeated-Course Rule

Two McMaster rules quietly shape your record — one to aim for, one that changes your cumulative number:

  • Dean's Honour List — GPA 9.5 or higher. Awarded for a GPA of at least 9.5 on a minimum of 30 units taken in the assessment period (some faculties use 27 units). On the 12-point scale, 9.5 is roughly an A− average — the line worth defending.
  • Repeated courses (since 1 September 2018). When you repeat a course, McMaster excludes the earlier attempt from your cumulative GPA — only the most recent grade counts toward the cumulative average (though both still appear on your transcript). This is effectively grade replacement, and it's the biggest single GPA lever if a low grade is dragging you down.

Specific scholarship, programme-entry, and good-standing GPAs are set by each faculty and shift year to year, so confirm the current threshold for your programme — but 9.5 is the universal Dean's Honour List marker.

A Worked McMaster GPA Example

CourseGradeUnitsGrade pointCourse points
CalculusA31133
EnglishA−31030
ChemistryB+3927
Biology (full year)B6848
Total—15—138

GPA = 138 course points ÷ 15 units = 9.20 (≈ 3.3 on the 4.0 scale) — just below the 9.5 Dean's Honour List line. Notice the leverage: lifting the 6-unit Biology from B to B+ adds 6 points (GPA → 9.6, over the line), while the same jump in a 3-unit course adds only 3 — the heavy course is where the gain is.

What Counts as a Good McMaster GPA?

Because the scale runs to 12, the numbers feel very different from a US 4.0. On the 12-point scale:

  • 10–12 — excellent; an A-range average, well above the Dean's Honour List line and strong for grad and professional schools.
  • 9–10 — very strong; right around the 9.5 Dean's Honour List cut-off (a high B+/A− average).
  • 7–9 — solid; a B-range average that clears most programme requirements.
  • 4–7 — passing, C-range; room to climb, especially on your heavy courses.
  • Below 4 — near the good-standing line; focus on the heaviest courses and reachable one-grade steps.

For applications that want a 4.0-scale number, use the conversion in the table above (or the live figure under your result) — a McMaster 9.5 is roughly a 3.5–3.7, not a near-fail.

How to Calculate Your McMaster GPA (Step by Step)

  1. Convert each grade to its grade point — A+ = 12, A = 11, A− = 10, B+ = 9, B = 8, B− = 7, C+ = 6, C = 5, C− = 4, D+ = 3, D = 2, D− = 1, F = 0.
  2. Multiply by the course's units to get its course points (a B in a 6-unit course is 8 × 6 = 48).
  3. Add the course points from every course you're counting.
  4. Add up the total units for those courses.
  5. Divide total course points by total units. That's your GPA on the 12-point scale (one term for term GPA, all courses for cumulative).

Common McMaster GPA Mistakes (and How to Avoid Them)

  • Using a 4.0 scale. McMaster is a 12-point scale — A+ = 12, not 4.0. Convert only when an application asks for a 4.0 number.
  • Counting courses instead of units. A 6-unit course moves your GPA twice as much as a 3-unit one; weight by units.
  • Forgetting the repeated-course rule. Since Sept 2018, only your most recent attempt counts toward the cumulative GPA — a repeat can lift it a lot.
  • Mixing up term and cumulative GPA. Term GPA is one term; cumulative is your whole record — the Dean's Honour List and many decisions use the right one for the period.
  • Treating D− as worthless. D− (1) still passes a course (50%) and earns a point; only F (0) is a fail.

Frequently Asked Questions

How is GPA calculated at McMaster?

Multiply each course's grade point on the 12-point scale (A+ = 12, A = 11, down to D− = 1 and F = 0) by its units, add the results, then divide by total units. One term gives your term GPA; every course gives your cumulative GPA.

What is the McMaster grading scale?

A 12-point scale: A+ = 12 (90–100%), A = 11 (85–89%), A− = 10 (80–84%), B+ = 9, B = 8, B− = 7, C+ = 6, C = 5, C− = 4, D+ = 3, D = 2, D− = 1 (50–52%), and F = 0. D− is the lowest passing grade.

How do I convert my McMaster GPA to the 4.0 scale?

Use the standard mapping: A+ (12) = 4.0, A (11) = 3.9, A− (10) = 3.7, B+ (9) = 3.3, B (8) = 3.0, and so on down. A McMaster GPA of about 9.5 is roughly a 3.5–3.7. The calculator above shows your live 4.0 equivalent under your result.

What GPA do you need for the Dean's Honour List at McMaster?

A GPA of 9.5 or higher on at least 30 units taken in the assessment period (some faculties use 27 units). On the 12-point scale that's roughly an A− average.

What is a good GPA at McMaster?

On the 12-point scale, a GPA of 9–10 is very strong (around the Dean's Honour List line), 10–12 is excellent, and 7–9 is a solid B-range average. Because the scale runs to 12, these feel very different from a US 4.0.

What happens to my GPA when I repeat a course at McMaster?

Since 1 September 2018, when you repeat a course only your most recent attempt counts toward your cumulative GPA — the earlier attempt is excluded from the average (both still appear on your transcript). It's effectively grade replacement and can lift your cumulative GPA noticeably.

What is a unit at McMaster?

A unit is McMaster's measure of course size, roughly one lecture hour per week for a term. A typical one-term course is 3 units and a full-year course is 6 units. Your GPA is weighted by units, so heavier courses count more.

Is this McMaster GPA calculator official?

No. It's a free, independent estimator built from McMaster's published 12-point grading method. Your official GPA is the one in Mosaic and on your transcript.

Planning the Rest of Your McMaster GPA?

Two free tools take the rest of the math off your plate — add this term to your existing cumulative GPA, and find the grades you need to hit a target.

Cumulative GPA Calculator   Target GPA Calculator

Other GPA Tools

UofT GPA

University of Toronto GPA on the 4.0 scale.

Convert to 4.0

Move a 12-point GPA onto the US 4.0 scale.

Cumulative GPA

Add this term to your existing McMaster GPA.

Browse university calculators