Free Tool
Shared Living Cost Calculator
Australia
See exactly what shared housing costs per person — and how much more you save by splitting with more flatmates.
Setup
Including yourself
Rent
Average 3BR in Sydney: $950/wk — split 3 ways = $317/person
Shared Utilities
Per month, whole house
Per month, whole house
Per month, whole house
Per month, whole house
Personal Expenses
Per person, per week — food and household basics
Streaming, dining out, gym, etc. — per month
Your share
$2,307
per month · 3 people sharing
vs. renting a 1BR apartment alone
Save $864 per month
Cost breakdown
How your share changes with more flatmates
Based on a $950/wk property in Sydney — splitting rent and utilities changes with more flatmates.
| Flatmates | Rent share | Utilities share | Food + transport | Total / person |
|---|---|---|---|---|
1 person(alone) | $4,114 | $430 | $792 | $5,336 |
2 people | $2,057 | $215 | $792 | $3,064 saves $2,272 |
3 peopleyou | $1,371 | $143 | $792 | $2,307 saves $3,029 |
4 people | $1,028 | $108 | $792 | $1,928 saves $3,408 |
5 people | $823 | $86 | $792 | $1,701 saves $3,635 |
Frequently asked questions
How much does it cost to share a flat in Sydney?+
In Sydney, sharing a 3-bedroom property with 3 people typically costs around $350 per person per week for rent and utilities combined. Add groceries and transport and the all-in cost is roughly $533/week.
What bills are shared in a flatshare?+
Standard shared bills are electricity, gas, internet and (where applicable) water. These are split equally between all residents. Personal expenses — phone, subscriptions, clothing — stay separate. Some households also pool a weekly grocery budget.
How do you fairly split bills between flatmates?+
Equal splits work for most households. If bedrooms vary significantly in size or privacy, consider splitting rent proportionally while keeping utilities equal. Using a shared expense tracking app (or Flathive's built-in tools) helps avoid disputes and keeps everyone accountable.
Is it cheaper to share or rent alone?+
Almost always cheaper to share. In Sydney, renting a 1-bedroom apartment solo typically costs $450/wk — before utilities. Sharing a 3-bedroom home with 3 people brings your rent share down to $317/wk, a saving of $133 per week on rent alone.
Ready to find flatmates in Sydney?
Browse verified flatmate listings and connect with people looking to share.
Search Sydney listings →Figures are estimated averages based on typical market rates in 2026 and may vary by property type, location, season and provider. Rent averages sourced from recent listings data. Always verify current rates before making financial decisions.