Electricity cost calculator for New Zealand
What any appliance costs to run per day, month and year.
Changing country switches the currency and resets the inputs to local starting values.
Your numbers
Cost per month
$57.60
180 kWh used
- Per hour
- $0.480
- Per day
- $1.92
- Per year
- $701
- Annual energy
- 2,190 kWh
Motors and heat pumps cycle rather than drawing full power continuously, so nameplate wattage is an upper bound for those.
How to read the result
An appliance's wattage tells you nothing on its own. Runtime and your tariff decide whether it is background noise or the reason your bill jumped.
Enter the wattage from the label, how long it runs and your per-kWh rate.
This page is set to New Zealand and prints NZD. Starts at $0.320 per kWh. Every figure is a starting point you should overwrite with your own.
Worked example in NZD
Using the values the form starts with.
Cost per month
$57.60
- Per hour
- $0.480
- Per day
- $1.92
- Per year
- $701
- Annual energy
- 2,190 kWh
Questions people ask
- Where do I find the wattage?
- On the rating plate, the manual, or the power supply. If only amps and volts are listed, multiply them to get watts.
- What is a typical price per kWh in New Zealand?
- Around $0.320 per kWh is a reasonable household figure for New Zealand, which is the default here. For your real blended rate, divide your total bill by the kWh it covers.
Electricity cost in other countries
Same maths, local currency and local starting values.