What Is a WAM? How to Calculate Your Weighted Average Mark

If you're at an Australian university, the number that decides honours entry, scholarships, and graduate program offers usually isn't your GPA - it's your WAM. Here's exactly what it is, how to work it out, and how it differs from the GPA you might have heard about.

What a WAM actually is

WAM stands for Weighted Average Mark. It's the average of your raw subject marks (out of 100), weighted by how many credit points each subject is worth. A subject worth 12 credit points pulls on your WAM twice as hard as one worth 6.

The "weighted" part is what students miss. Your WAM is not the simple average of your marks - a heavier subject counts more.

The WAM formula

WAM = Σ(mark × credit points) ÷ Σ(credit points)

In plain English: multiply each subject's mark by its credit points, add all of those up, then divide by the total credit points you've completed.

A worked example

Say you've finished four subjects:

Multiply each subject's mark by its credit points:

• Marketing: 82 × 6 = 492
• Microeconomics: 74 × 6 = 444
• Statistics: 68 × 6 = 408
• Research Project: 88 × 12 = 1056

Add those together: 492 + 444 + 408 + 1056 = 2400.

Then divide by the total credit points (6 + 6 + 6 + 12 = 30):

2400 ÷ 30 = 80.0

Your WAM is 80.0 - a Distinction. Notice how the 12-credit-point research project, where you scored 88, pulled your WAM up more than any single 6-point subject could.

WAM grade bands

Most Australian universities map your WAM to the same grade bands:

These are the common cut-offs, but they aren't universal - always check your own university's exact bands, especially for honours eligibility.

WAM vs GPA: what's the difference?

They answer the same question - "how are you doing overall?" - with completely different numbers.

• A WAM averages your actual marks out of 100. An 80 WAM means your weighted average mark is 80%.
• A GPA converts each grade to points on a fixed scale (4.0 in the US, 7.0 at many Australian unis) and averages those instead.

So one transcript can be described as both an "80 WAM" and a GPA on a 4.0 or 7.0 scale - same results, two systems. If you need the GPA version, the GPA Calculator handles it, and this guide on weighted vs. unweighted GPA explains how grade points work.

What counts as a good WAM?

It depends what you're aiming for:

• Distinction average (75+) is the usual benchmark for honours entry and many scholarships.
• Credit average (65+) keeps most graduate program and exchange options open.
• High Distinction (85+) puts you in range of competitive honours, medals, and research places.

As with a GPA, the threshold that matters is the one set by the program you actually want - find that number, then track toward it.

Two things that quietly change your WAM

1. Failed subjects usually still count. At most universities the mark from a failed attempt (say, 38) stays in your WAM and drags it down, even after you pass the re-sit. A couple of low marks early on can weigh more than students expect.
2. Some unis weight by year level. A number of universities count later-year subjects more heavily than first-year ones, so your final WAM isn't a flat credit-point average. If your calculated number doesn't match your transcript, year-level weighting is the usual reason - check your university's WAM rule.

Skip the math

You don't need to run the formula by hand every time. The free WAM Calculator works out your Weighted Average Mark and grade band as you type in each subject's mark and credit points.

And to keep that number live all semester - instead of recalculating it the night before results - the MyGrades app tracks your WAM, GPA, and what you need on every final automatically, as you log each result.