Weighted Average Mark Calculator

What Is a Weighted Average Mark (WAM)?

A WAM keeps your actual marks rather than converting them to letters or grade points. A 78 stays a 78. That makes it more precise than a grade-based average, because the difference between 75 and 84 survives instead of collapsing into a single Distinction grade.

Credit points do the weighting. A 12-credit-point unit counts twice as much as a 6-credit-point unit, so a strong mark in a full-year subject moves your WAM further than the same mark in a half unit.

Universities read WAM against fixed bands: 85 and above is a High Distinction, 75 to 84 a Distinction, 65 to 74 a Credit, and 50 to 64 a Pass. Honours eligibility, scholarships, and postgraduate entry are usually set at one of those thresholds. The same credit-weighting method is covered generally by the weighted average calculator.

How to Use the Weighted Average Mark Calculator

Enter Your Subject Marks

Put each final mark in the mark column, out of 100. Use the numeric mark from your results page rather than the grade letter, since HD, D, and C each cover a 10-mark span.

• Unit names the row — the unit code or title both work.
• Add unit creates another row, and the Enter key on the last row does the same.
• Decimals sets how the WAM is rounded, between 0 and 3 digits.
• Marks outside 0 to 100 are flagged, since they usually mean a percentage was typed as a decimal.

Enter the Credit Points or Weight for Each Subject

Type the credit points each unit carries. Australian universities commonly use 6 or 12 per unit; UK institutions often use 15 or 30. Any consistent unit works, because only the ratio between units changes the result.

The year level column applies only under the level-weighted scheme, where Level 1 units count at half weight. Leave the scheme on credit points only unless your handbook says otherwise — the column dims when it has no effect.

Calculate Your WAM

No button is needed. Beside the WAM and its band, the panel reports 4 figures:

• Weighted total — the numerator, every mark multiplied by its weight.
• Credit points — the denominator of the calculation.
• Units counted — how many rows were included.
• Simple average — the same marks with credit points ignored.

The note under the result reports how far you sit from the next band, so a WAM of 73.38 is described as 1.63 marks below a Distinction rather than left for you to work out.

WAM vs. Simple Average

Weighted Average vs. Arithmetic Average

The arithmetic average counts the 12-point Marketing unit once, exactly like the 6-point units, which is why it reports a higher figure. Your university records the WAM, so the 0.75 difference decides whether the transcript shows a Distinction.

The two coincide when every unit is worth the same credit points. Four 6-point units at 78, 85, 72, and 68 give 75.75 under both methods, because equal weights cancel in the division.

Does Every University Calculate WAM the Same Way?

Five rules differ between universities, and each one moves the number:

• Year-level weighting. Some count Level 1 units at half weight, or exclude them entirely; others weight every level the same.
• Failed units. Most include fails at the mark recorded, which drags the WAM down. A few exclude a discontinued unit.
• Ungraded results. Pass or fail units, credit transfers, and exchange units usually sit outside the WAM.
• Supplementary marks. A capped pass of 50 after a supplementary exam is often what counts, not the original mark.
• Repeated units. Some count both attempts, others only the later one.

This calculator applies the two most common schemes and leaves the inclusion rules to you: enter only the units your university counts. When your official WAM differs from the figure here, one of those five rules is the reason.

Common WAM Calculation Mistakes

1. Averaging the marks and ignoring credit points. The most common error, and it flatters most transcripts.
2. Using grades instead of marks. A Distinction is a 10-mark band; entering 75 for every D loses real information.
3. Leaving failed units out. If your university counts fails, the credit points stay in the denominator with a low mark on top.
4. Including pass or fail units. Ungraded results carry credit but no mark, and belong outside the WAM.
5. Applying the wrong level weighting. Halving first-year units when your university does not, or forgetting to when it does.
6. Rounding each unit before averaging. Round once, at the end.

The calculator catches the arithmetic ones: it prints the weighted total and credit points separately so a wrong denominator is visible, flags marks outside 0 to 100, and marks any row missing one half of the pair. The inclusion rules stay with your handbook.