How much electricity does an electric kettle use?
Boiling about 1 litre of water uses about 0.1 kWh of electricity, about 0.10 PLN at 1.04 PLN/kWh. Four such boils a day add up to about 146 kWh and about 152 PLN a year, about 13 PLN a month.
Example: 0.1 kWh × 4 × 365 days = 146 kWh
Electric kettle: about 146 kWh a year, about 152 PLN a year
about 152 PLN a yearabout 13 PLN a month
One use and average
- 1 boil
- 0.1 kWh, about 0.10 PLN
- Average per day
- 0.40 kWh, about 0.42 PLN
Price from 11 October 2026, estimate
| Period | Use | Cost |
|---|---|---|
| Per day, average | 0.40 kWh | 0.42 PLN |
| Per month | 12.2 kWh | 13 PLN |
| Per year | 146 kWh | 152 PLN |
Assumptions and formulaPrice from 11 October 2026
kWh/yr = W × h/day × 365 ÷ 1000 kWh/yr = kWh per cycle × cycles per week × 52 cost = kWh/yr × price of 1 kWh
Your numbers
- Electric kettle: 0.1 kWh × 4 × 365 days = 146 kWh; 146 kWh × 1.04 PLN = about 152 PLN a year
- Electricity price
- 1.04 PLN/kWhURE G11 tariffs 2026 (PGE, Tauron, Enea, Energa), average with distribution
- Year
- 365 days, 52 weeks
- Rounding
- to 1 kWh a year, below 10 kWh to 0.1 kWh
An estimate. Fixed charges on the bill are not included. Appliances with a thermostat (fridge, oven, water heater) draw full power only part of the time, so label data works better for them.
How electricity, gas, pellet and coal prices have changed, month by month. Price history
Ready-made calculations
Where 0.1 kWh per litre comes from
Heating 1 kg of water by 1°C takes 4.19 kJ. Tap water at 15°C needs 4.19 kJ × 85 K = 356 kJ to boil, about 0.099 kWh. The kettle loses some heat on the way, so in practice it is a little more.
A more powerful kettle boils faster but does not change the amount of energy. It boils a litre sooner and uses about the same.
How to use less with a kettle
Boil only as much water as you need. Every extra litre is about 0.1 kWh: boiling one litre too much every day adds about 37 kWh, about 38 PLN a year. Limescale on the element slows boiling, so descale the kettle regularly.
Frequently asked questions
How much does it cost to boil water in a kettle?
Boiling about 1 litre of water uses about 0.1 kWh, about 0.10 PLN at 1.04 PLN/kWh. A full kettle costs proportionally more.
Does a kettle use a lot of electricity?
It has high power but runs for a few minutes. With four boils a day it uses about 146 kWh a year, less than a fridge labelled 250 kWh.