How Total Cholesterol appears on your report

Look for Total Cholesterol. The result is normally shown in mmol/L, next to the reference interval used by the laboratory that ran the test.

Note the collection date before you compare it with anything, along with the context that matters for this marker: genetics, diet, weight, thyroid function, liver health and cholesterol medicines can all affect it. The wider lipid profile matters more than this number alone.

Total Cholesterol range in Australia

Vector tracks Total Cholesterol against an optimal range of 3.5–5.5 mmol/L. Australia has no nationally harmonised reference interval for this marker, so the interval printed on your report varies with the laboratory and the assay it used.

Vector optimal3.5
5.5mmol/L
Varies by laboratory

No harmonised Australian interval exists for this marker — use the one printed beside your own result.

Vector’s optimal range is the band the app tracks against and the one printed in the doctor report. Why the two differ.

What to read alongside Total Cholesterol

A single marker rarely explains itself. These results are commonly interpreted together with Total Cholesterol, and Vector keeps them within reach of each other as your record grows.

Tracking Total Cholesterol over time

One Total Cholesterol result is a single point. Import the report into Vector, check the extracted value, unit and collection date, and it becomes the start of a series instead — with each later report adding a dated point you can actually compare against.

Further reading

Total Cholesterol is read the same way every other result on the report is. These two guides cover that method rather than this marker:

Common questions

What is a normal Total Cholesterol range in Australia?

Australia has no nationally harmonised reference interval for Total Cholesterol, so the range printed on your report varies with the laboratory and the assay it used — always read your result against the interval beside it. Vector tracks Total Cholesterol against an optimal range of 3.5–5.5 mmol/L, which is deliberately tighter than a population reference interval.

What is the optimal Total Cholesterol level?

Vector treats 3.5–5.5 mmol/L as the optimal range for Total Cholesterol. An optimal range is a target the app tracks against, not a clinical threshold, and it can differ from the interval your laboratory prints.

What unit is Total Cholesterol reported in on Australian pathology reports?

Total Cholesterol is usually reported in mmol/L on Australian pathology reports. The performing laboratory prints a reference interval in the same unit beside the result, and that interval is the one that governs your individual result.

What can change your Total Cholesterol result?

Genetics, diet, weight, thyroid function, liver health and cholesterol medicines can all affect it. The wider lipid profile matters more than this number alone.

Sources

  1. RCPA Manual: CholesterolAustralian pathology reference for this test and related result context.
  2. RCPA Manual: Pathology TestsThe performing laboratory's interval remains the primary reference for an individual result.

Published 2 August 2026 · Updated 3 August 2026 · Author Vector