Skip to content
Calculator Tools
Home & Construction Calculators

House Construction Cost Calculator

Cost to build a house from its size, quality level and number of storeys, with a material split.

Enter values

Results update as you type.

Result

Estimated total

$280,560.00

Construction
$250,500.00
Contingency
$30,060.00
Total floor area
180 m²
Cost per m²
$1,558.67
Cost per ft²
$144.80

A planning estimate only. Get quotes from local builders before committing to a budget.

About the House Construction Cost Calculator

Cost to build a house from its size, quality level and number of storeys, with a material split.

Also known as: cost to build a house, home building cost, house build budget, new build cost.

How to use this calculator

  1. Enter floor area per storey, storeys, specification, bedrooms and the other fields.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

cost = area × storeys × rate + fit-out + contingency

Worked example

Using the values pre-filled in the calculator above:

  • Floor area per storey = 90 m²
  • Storeys = 2
  • Specification: Standard
  • Bedrooms = 3
  • Bathrooms = 2
  • Land cost (optional) = 0
  • Contingency = 12 %

the calculator returns:

  • Estimated total: 280,560
  • Construction: 250,500
  • Contingency: 30,060
  • Total floor area: 180 m²