Australia calculator
Bathroom Renovation Cost Calculator
Estimate the cost to renovate your bathroom. Adjust floor area, scope, finish level, and tub-to-shower conversion to see an itemised ex-GST range before the Australia-wide GST total.
How this calculator is built
Unit costs with sources
This model cites 2 sources for its line-item cost and regional labour inputs.
Regional labour adjustment
The state table applies local labour indexes only to labour-heavy line items.
Published methodology
The methodology page lists the formula, size drivers, labour model, and source links.
How this estimate is calculated
The model prices 9 project line items from published cost inputs. Quantities are driven by your bathroom floor area in m2, scope of work, finish level, and whether a tub is converted to a walk-in shower. The selected scope and finish adjust those inputs, then the regional index changes only each line's labour share; material prices remain national.
The itemised midpoint is shown as a ±25% planning range. It is not a contractor quote: access, design choices, permits, availability, and site conditions can move the final price.
Read the full calculation notesEstimate your project
Change the default inputs to match your scope. The breakdown updates by line item.
Bathroom Renovation Cost by state: typical ranges
Each range applies that state's labour index to the labour-share line items of the default project; materials stay at national prices. Select a state for its full local breakdown and calculator.
| State | Typical range | Labour index | Permit |
|---|---|---|---|
| Australian Capital Territory | $20,326–$33,877 | 101% | Likely |
| New South Wales | $20,409–$34,015 | 102% | Likely |
| Northern Territory | $19,643–$32,738 | 95% | Likely |
| Queensland | $19,809–$33,014 | 96% | Likely |
| South Australia | $19,684–$32,807 | 95% | Likely |
| Tasmania | $18,628–$31,046 | 85% | Likely |
| Victoria | $20,036–$33,394 | 98% | Likely |
| Western Australia | $21,176–$35,293 | 109% | Likely |
Common questions
How much does a bathroom renovation cost in Australia?
hipages' 2026 guide cites HIA data showing an average bathroom reno around $26,000, with a broad $8,000-$35,000 rule-of-thumb range depending on scope and finishes.
What drives bathroom renovation cost?
Waterproofing, tiling, plumbing changes, shower screens, baths, vanities, and licensed trade labour drive most of the spread.
Are the area costs per square metre?
Yes. AU bathroom area inputs are in m2, and the demolition and tile/flooring lines are priced per m2.