How to use this energy & bills hub
This hub brings together the energy tools currently available for NZ visitors. Start with the calculator closest to your question, enter figures that reflect your own situation, and compare more than one scenario when the decision is important.
The tools show the maths implied by the inputs. They do not replace provider quotes, professional advice, or country-specific rules that are not shown in the calculator. Review the assumptions beside each result before using it to make a decision.
More tools in this category
Use these supporting calculators when you need a more specific comparison or a second opinion on the same decision.
Electricity Cost Calculator
Calculate your electricity costs per day, month and year based on your usage and unit rate.
Gas Bill Calculator
Calculate your monthly and annual gas bill from your daily usage, unit rate and standing charge.
Solar Panel Savings Calculator
Calculate solar panel savings, payback period and 10-year return based on your system size and energy prices.
Energy Bill Calculator
Calculate your total annual energy bill combining gas and electricity usage, unit rates and standing charges.