Canstar Mortgage Calculator review
A free web calculator for comparing estimated repayments, interest and loan payoff timing.
Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
Canstar Mortgage Calculator is a free web tool for borrowers who want to estimate home loan repayments and compare how different loan inputs affect the result. Enter a loan amount, interest rate, term and payment frequency, then choose principal-and-interest or interest-only repayments. It suits people comparing scenarios before making decisions, including those considering refinancing, but its estimates are not financial advice.
A useful strength is the way it presents repayment outcomes: results can be viewed as a graph or a table, alongside estimated total interest, total loan cost and the time it may take to repay principal. Users can manually compare hypothetical rates, terms or amounts, making it practical for visual side-by-side exploration. This is a focused comparison tool rather than a broader affordability planner: it does not take property tax or insurance inputs into account.
The calculator is free and available on the web. Its refinance use is limited to manually changing inputs; it does not offer a dedicated refinance comparison or break-even tool. Results exclude fees, so they should be treated as estimates rather than a complete view of borrowing costs. Choose Canstar when you want a straightforward way to compare repayment and interest scenarios visually. Look elsewhere if you need fee-inclusive projections, a refinance break-even analysis or a fuller affordability assessment.
Canstar Mortgage Calculator pros and cons
- Where it wins
- Shows estimated results as a graph or table
- Estimates total interest, loan cost and time to repay principal
- Compares hypothetical rates, terms and loan amounts
- Where it doesn't
- Results exclude fees
- No dedicated refinance comparison or break-even tool
- Does not include affordability, property tax or insurance inputs
Canstar Mortgage Calculator fact sheet, pricing and score →
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