Lifestyle & Utility
Water Usage Calculator
Estimate your household water consumption in litres per day and quarterly cost based on usage habits.
How this calculator works
Estimates daily water consumption by category: showers (flow rate x minutes x showers/day), toilet flushes (~35L/person/day), washing machine (~60-120L per load), dishwasher (~15L/load), kitchen/drinking (~20L/person/day), and garden watering. Converts to quarterly cost using the water rate.
Average Australian shower is 7 minutes
Total minutes per week using hose or sprinkler
Cost per kilolitre (1000 litres). Check your water bill.
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FAQ
Frequently asked questions
What is the average water usage in Australia?
The average Australian uses approximately 340 litres per person per day (including outdoor use). Indoor use averages about 200 litres/day. The largest indoor uses are shower (34%), toilet (26%), laundry (23%), and kitchen (13%).
How much does water cost in Australia?
Water prices vary by utility. Usage charges range from $2.00-$4.50 per kilolitre (1000 litres) plus a fixed service charge of $100-$300/quarter. Sydney Water charges ~$2.35/kL. Urban Utilities (Brisbane) charges ~$3.20/kL.
How much water does a 10-minute shower use?
With a standard 9 L/min shower head: 90 litres. With an old 15 L/min head: 150 litres. With a water-efficient 6 L/min head: 60 litres. Replacing an old shower head is one of the easiest water-saving upgrades.
Are there water restrictions in my area?
Water restrictions vary by local council and dam levels. Most Australian cities have permanent water-saving rules (e.g., no hosing driveways, watering gardens only on certain days/times). Check your local water authority's website for current restrictions.
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