Electric Kettle Electricity Cost Calculator
A few minutes per boil adds up differently from leaving a heater on for hours.
Your usage
Example inputsResults update as you type. All costs are in U.S. dollars. See result ↓
For your own rate, add per-kWh supply and delivery charges; leave out fixed fees. Find it on your bill →
Example result — edit inputs to match your use
Estimated electricity cost4.5 kWh per month at 18.31¢/kWh
(1500 W ÷ 1,000) × 0.1 h × 30 days × 100% × $0.1831 = $0.82At these watts and active time: $0.27 per scheduled hour.
Daily is one day of use. Annual repeats your monthly schedule 12 times (not a 365-day forecast). Rates are held constant. Actual use may vary.
↑ Edit inputsCount heating minutes, not time on the counter
The 1,500 W, six-minute daily example uses 0.15 kWh/day. At 20¢/kWh that is $0.03/day and $0.90 over 30 days. Six minutes is 0.1 hours. These inputs illustrate the calculation and are not a measured boil time for your kettle.
Compare the same amount of water
For a fair kettle comparison, start with the same water quantity and temperature and finish at the same target. A higher-power kettle can finish sooner, so comparing wattage alone misses the time difference. Keep-warm operation needs to be included separately.
Reference: Virginia Cooperative Extension: estimating appliance energy use
Can I multiply one measured boil by daily boils?
Yes, when the amount and starting temperature are comparable. Multiply measured kWh per boil by boils per day, then by days and your dollar-per-kWh rate.
Make the estimate yours
Replace the example values with measurements or the product label. Select your state for an official average, then override it with your bill’s variable rate when available.
Read the calculations and assumptionsElectric kettle cost at different electricity rates
This static worked example uses 1,500 W × 0.1 hours/day × 30 days × 100% active time. These chosen rates show price sensitivity; they are not utility offers. The interactive result above uses your edited inputs.
| Electricity price | Monthly cost | Annual cost* |
|---|---|---|
| 12¢/kWh | $0.54 | $6.48 |
| 20¢/kWh | $0.90 | $10.80 |
| 30¢/kWh | $1.35 | $16.20 |
*Annual cost repeats this monthly pattern 12 times. Use your actual season length for seasonal equipment. Values are rounded only for display.
Practical energy guides
Watts to kWh: Calculate Energy Use and Electricity Cost
Convert watts, kilowatts, and minutes into kWh with worked examples. Learn why a wattage alone cannot tell you monthly electricity use.
Understand your billHow to Find Your Electricity Rate on Your Bill
Find the right cents-per-kWh rate for an appliance calculator. Separate supply, delivery, fixed fees, and time-of-use charges with a worked bill example.