Property & Construction Calculators
Explore free calculators for property investment, mortgage planning, loan-to-value ratio, cash flow, negative gearing, building materials, renovation projects and tank capacity. Choose a tool below to estimate common property and construction figures quickly.
Property Finance Calculators
Estimate investment property cash flow, negative gearing, capital gains, mortgage offset savings and loan-to-value ratio.
Capital Gains Tax Property Estimator
Estimate a potential capital gain on a property using purchase price, sale price and relevant costs.
Negative Gearing Calculator
Estimate rental income, property expenses and the potential taxable loss or cash-flow position of an investment property.
Property Cash Flow Calculator
Estimate rental income and ongoing property expenses to understand an investment property’s cash-flow position.
Mortgage Offset Calculator
Estimate how funds held in an offset account could reduce the balance used to calculate mortgage interest.
LVR Calculator
Calculate loan-to-value ratio using the loan amount and estimated value of a property.
Construction & Renovation Calculators
Estimate material quantities and measurements for common building, renovation and home improvement projects.
Flooring Calculator
Estimate flooring area and material requirements for rooms and renovation projects.
Concrete Calculator
Calculate the approximate concrete volume required for slabs, footings, paths and other construction projects.
Paint Calculator
Estimate the quantity of paint required based on wall area, number of coats and paint coverage.
Tile Calculator
Estimate the number of tiles required for floors, walls, bathrooms, kitchens and other tiled areas.
Decking Calculator
Estimate decking area and approximate material requirements for an outdoor deck project.
Tank Volume Calculator
Calculate cylindrical and rectangular tank capacity in litres, cubic metres and gallons.
Roof Pitch Calculator
Calculate roof pitch, slope and angle from roof rise and run measurements.
Free Property Calculators for Australia
Property calculations can involve loan balances, rental income, operating expenses, property values and investment assumptions. Our property calculators are designed to make many of these common calculations easier to explore.
Whether you are researching an investment property, reviewing mortgage options or planning a renovation, you can select the relevant calculator above and enter your own figures to generate an estimate.
Property Investment Calculators
Property investors often need to evaluate more than the purchase price of a property. Rental income, loan interest, management fees, maintenance, rates and other expenses can all affect the financial position of an investment.
The Property Cash Flow Calculator can help compare rental income with recurring expenses, while the Negative Gearing Calculator can help illustrate a scenario where deductible property costs may exceed rental income.
A Capital Gains Tax Property Estimator can also help organise the figures involved when comparing a property’s purchase and sale values. Tax treatment can depend on individual circumstances, ownership structure, dates and other factors, so calculator results should only be used as estimates.
What Is LVR in Property Finance?
LVR stands for loan-to-value ratio. It compares the amount of a loan with the value of the property securing that loan.
A simple LVR calculation is:
LVR = Loan Amount Γ· Property Value Γ 100
For example, if a property is valued at $800,000 and the loan amount is $640,000:
$640,000 Γ· $800,000 Γ 100 = 80% LVR
Lenders may apply their own valuations, lending criteria, mortgage insurance rules and policy limits, so an online LVR calculation does not replace a lender’s assessment.
How Can a Mortgage Offset Calculator Help?
A mortgage offset account is generally linked to a home loan. Depending on the loan product, the balance in the offset account may reduce the loan balance on which interest is calculated.
For example, if a loan balance were $500,000 and an eligible offset account held $50,000, interest may be calculated on an effective balance of $450,000, subject to the terms of the loan.
The Mortgage Offset Calculator can help model this type of scenario, but actual savings will depend on interest rates, transaction timing, loan structure, fees and lender rules.
Construction & Renovation Calculators
Building and renovation projects usually involve estimating quantities before purchasing materials. Calculators can help provide an initial estimate for flooring, concrete, paint, tiles, decking and other materials.
These calculations are particularly useful when comparing project options or preparing an initial materials list, but real projects should also allow for cutting, breakage, wastage, site conditions, product dimensions and installation requirements.
Flooring Calculator
A flooring calculator can estimate the floor area of a room and help determine an approximate quantity of flooring material required. For many projects, an additional allowance is added for offcuts and wastage.
Concrete Calculator
Concrete requirements are commonly estimated by calculating volume. For a simple rectangular slab:
Volume = Length Γ Width Γ Depth
If dimensions are measured in metres, the result is expressed in cubic metres.
Paint Calculator
Paint requirements depend on the surface area, number of coats and coverage rate of the specific paint product. Doors, windows and other openings may also affect the total paintable area.
Tile Calculator
Tile calculations typically compare the area being tiled with the area covered by each tile. Extra tiles may be required for cuts, breakage and future replacements.
Decking Calculator
Decking estimates can depend on the overall deck dimensions, individual board width, spacing, board orientation and expected material wastage.
Tank Volume Calculator
Tank volume calculators estimate liquid capacity from the tank’s internal dimensions. Different formulas are required for different tank shapes.
For a rectangular tank:
Volume = Length Γ Width Γ Height
For a cylindrical tank:
Volume = Ο Γ RadiusΒ² Γ Height
Check that all dimensions use the same measurement unit before calculating area or volume. Using mixed units can produce a significantly incorrect result.
Which Property or Construction Calculator Should I Use?
- Use the Negative Gearing Calculator to explore an investment property’s income and expenses.
- Use the Property Cash Flow Calculator to compare rental income with recurring property costs.
- Use the Mortgage Offset Calculator to estimate potential interest savings from an offset balance.
- Use the LVR Calculator to calculate the loan-to-value ratio.
- Use the Concrete Calculator when estimating concrete volume for a project.
- Use the Flooring, Tile or Paint Calculators when planning renovation materials.
- Use the Tank Volume Calculator when estimating the capacity of cylindrical or rectangular tanks.
Frequently Asked Questions
Are these property and construction calculators free?
Yes. The calculators on EasyCalculator.com.au are available online without requiring registration.
Can I use the property calculators for investment decisions?
The calculators can help you explore scenarios and organise financial information, but the results are estimates and should not be treated as financial, tax, lending or investment advice.
What does negative gearing mean?
In general terms, a property may be negatively geared when deductible expenses associated with the investment exceed the assessable rental income. The tax treatment can depend on the circumstances, so professional advice may be appropriate.
What is a good LVR?
There is no single LVR that is appropriate for everyone. Lenders use their own lending criteria, valuations, pricing and mortgage insurance rules. The calculator simply determines the mathematical loan-to-value ratio from the figures entered.
Should I add wastage when calculating construction materials?
Often yes. Flooring, tiles, decking and other materials may require an allowance for cuts, offcuts, breakage or installation patterns. The appropriate allowance depends on the project and material.
Are construction calculator results exact?
No. They provide estimates based on the dimensions and values entered. Actual requirements can differ because of site conditions, product specifications, waste, installation methods and measurement accuracy.