How to use this calculator
Replace the example values with numbers that match your situation. The tool calculates only the relationship shown on this page; it does not automatically include taxes, fees, inflation, local rules or other costs unless you enter them.
Why this is useful
A quick estimate is most useful when you compare two or three realistic scenarios instead of relying on a single number. Try a lower, expected and higher-cost case to see which input changes the result the most.
Before you make a decision
Treat the result as a planning estimate. For contracts, taxes, loans, utility tariffs or regulated charges, verify the final figure with the relevant provider or local authority.