Updated June 29, 2026
Slow Cooker Running Cost Calculator
Calculate slow cooker electricity cost per meal, week, month, and year from its wattage, cooking time, and electricity price.
Live calculator
Calculate your actual running cost
Running this slow cooker for 6 hours a day, 3 days a week uses about 15.6 kWh each month.
Quick answer
How much does a slow cooker cost to run?
A 200 W slow cooker used for 6 hours a day, 3 days a week, consumes about 15.6 kWh per month. At $0.30 per kWh, that is approximately $4.68 per month. Replace these example figures with the wattage and electricity rate from your appliance and bill.
What changes the real running cost?
Slow cookers run for several hours, but their average wattage is usually much lower than an oven. The heat setting, recipe, fill level, and thermostat cycling change the real energy use.
Enter the cooking time for one meal as hours per day, then set days per week to how often you use the slow cooker.
Assumptions used in this example
This page starts with 200 watts, 6 hours of use per day, and 3 days per week. Those defaults are only a practical starting point. Replace them with the number on your product label, energy label, smart plug, or electricity bill.
Example slow cooker costs
These examples use 200 W for 6 hours a day and 3 days per week.
| Electricity rate | Per hour | Per month | Per year |
|---|---|---|---|
| $0.15 / kWh | $0.03 | $2.34 | $28.08 |
| $0.25 / kWh | $0.05 | $3.90 | $46.80 |
| $0.35 / kWh | $0.07 | $5.46 | $65.52 |
Ways to reduce the cost
Start with changes that reduce active runtime without compromising safety or the job the appliance needs to do.
- Keep the lid on during cooking to avoid heat loss.
- Choose the right size cooker for the amount of food.
- Batch cook when it avoids running another appliance later.
Estimate only. Actual consumption varies by model, setting, condition, temperature, duty cycle, and tariff. Use a plug-in meter or energy-label figure when accuracy matters.
FAQ
Slow cooker running cost questions
How do I calculate slow cooker running cost?
Divide the watts by 1,000 to get kilowatts, multiply by the hours used, then multiply by your electricity price per kWh. This page pre-fills 200 W, 6 hours per day, and 3 days per week as a starting example.
How much does a slow cooker cost per hour?
At 200 W and $0.30 per kWh, the example cost is about $0.06 per hour while it is actively using that power. Change the rate field to match your own bill.
Why might my real slow cooker cost be different?
Enter the cooking time for one meal as hours per day, then set days per week to how often you use the slow cooker.
Should I use rated watts or measured watts?
Rated watts are useful for a quick estimate, but measured wall power or an energy-label kWh figure is usually more accurate because many appliances cycle on and off or change power during use.
Does the calculator include standing charges, taxes, or demand charges?
No. The calculator estimates usage cost from kWh only. If your bill includes standing charges, taxes, delivery fees, or demand charges, add those separately.
Can I share my result?
Yes. Use the share or copy button after entering your wattage, hours, days, rate, and currency. The page stores those inputs in the URL so you can revisit the same estimate.