GPA Calculator for NUS, NTU and SMU: Grades to Honours Class
Your courses
One row per course: the letter grade and its units (most NUS courses are 4 units).
- 14units
- 24units
- 34units
- 44units
- 54units
Tap a grade to add a course
GPA for these courses
4.50 / 5.0
- Graded units in GPA
- 20
- Units earned (incl. S/U)
- 20
- Grade points × units
- 90.0
Target planner
What you need in the rest of your degree to finish at a target GPA.
Average needed over 80 units
3.88
Roughly a B+ average (4.0) or a mix of grades above and below 3.88.
NUS grade points
NUS honours classes for 160-unit degrees, students admitted from AY2012/2013. Programmes may add requirements.
- A+5.0
- A5.0
- A-4.5
- B+4.0
- B3.5
- B-3.0
- C+2.5
- C2.0
- D+1.5
- D1.0
- F0.0
- Honours (Highest Distinction)4.50 and above
- Honours (Distinction)4.00 to 4.49
- Honours (Merit)3.50 to 3.99
- Honours3.00 to 3.49
- Pass2.00 to 2.99
S/U: the S/U option takes a course out of your GPA. S (a D grade or better) earns the units; U (an F) does not. Your first-year allowance is 32 units.
How this works
Your GPA is a weighted average: each course's grade point is multiplied by its units (NUS Units, NTU Academic Units, SMU Course Units), the products are added up, and the total is divided by the graded units. Courses taken S/U or pass/fail earn units but are left out of the GPA. A failed graded course counts as 0 and stays in.
NUS and NTU use a 5-point scale: A+ and A are 5.0, A- 4.5, B+ 4.0, B 3.5, B- 3.0, C+ 2.5, C 2.0, D+ 1.5, D 1.0 and F 0. SMU uses a 4-point scale with A+ at 4.3, 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+ 1.3, D 1.0 and F 0.
Honours bands at NUS (students admitted from AY2012/2013, 160-unit degrees) and NTU are the same: Highest Distinction 4.50 and above, Distinction 4.00 to 4.49, Merit 3.50 to 3.99, Honours 3.00 to 3.49 and Pass 2.00 to 2.99. SMU awards Summa Cum Laude from 3.80, Magna Cum Laude 3.60 to 3.79, Cum Laude 3.40 to 3.59, High Merit 3.20 to 3.39 and Merit 3.00 to 3.19. Some programmes add conditions, such as a minimum grade for the final year project.
The target planner solves for the average grade point you need over your remaining graded units: (target × all graded units − grade points so far) ÷ remaining units. Grade tables were checked against each university's published pages in October 2026.
FAQs
How is NUS GPA calculated?
Multiply each course's grade point by its units, add them up and divide by the total graded units. Five 4-unit courses graded A, A-, B+, A and B+ give (5 + 4.5 + 4 + 5 + 4) × 4 ÷ 20 = 4.50, which is the Honours (Highest Distinction) band. S/U courses are left out.
What GPA do I need for First Class Honours at NUS or NTU?
4.50. NUS and NTU now call it Honours (Highest Distinction), and the cut-off did not change with the new name. Distinction (formerly Second Upper) is 4.00 to 4.49 and Merit (formerly Second Lower) is 3.50 to 3.99.
Is SMU GPA out of 4.0 or 4.3?
Grades go up to 4.3 (an A+), but SMU's honours awards are set on a 4.0 basis: Summa Cum Laude needs 3.80, Magna Cum Laude 3.60 and Cum Laude 3.40. An A is 4.0 and an A- is 3.7.
Does an S/U or pass/fail course affect my GPA?
No. An S at NUS (a D or better) earns the units but has no grade point, and a U earns nothing. NTU and SMU pass/fail courses work the same way. Only letter-graded courses, including Fs, count.
Can I still reach Highest Distinction?
Use the target planner. For example, with a 4.20 GPA over 80 units and 80 graded units left, you need a 4.80 average in the rest to finish at 4.50, which means mostly A grades.