How Much Power Does a Slow Cooker Use? (Daily, Weekly, Monthly Costs)
A complete 2026 breakdown of wattage, cost per hour, energy efficiency, and how slow cookers compare to ovens and stovetops
Slow cookers are famous for convenience — but they’re also one of the most energy‑efficient appliances in the kitchen. In 2026, with electricity rates rising and homeowners looking for ways to cut utility bills, slow cookers have become a surprisingly powerful tool for reducing energy costs.
This guide breaks down exact wattage, cost per hour, daily and monthly usage, and how slow cookers compare to ovens, air fryers, and stovetops.
1. How Slow Cookers Use Electricity
Slow cookers heat food gently over long periods using a ceramic or metal insert surrounded by a low‑wattage heating element.
Typical wattage ranges
| Setting | Average Wattage | Notes |
|---|---|---|
| Low | 70–150W | Most energy‑efficient mode |
| High | 150–250W | Still extremely efficient |
| Warm | 50–75W | Lowest power draw |
Even on high, slow cookers use less power than a light bulb and far less than ovens or stovetops.
2. How Much Electricity Does a Slow Cooker Use Per Hour?
Using the U.S. 2026 average electricity rate of 17¢ per kWh, here’s the cost breakdown:
Low setting (100W example)
- 0.1 kWh × 17¢ = 1.7 cents per hour
High setting (200W example)
- 0.2 kWh × 17¢ = 3.4 cents per hour
Warm setting (60W example)
- 0.06 kWh × 17¢ = 1.02 cents per hour
Even long cooking sessions barely move the meter.
3. Cost Per Meal (Real‑World Examples)
Most slow cooker recipes run 4–8 hours.
4‑hour cook on Low
- 1.7¢ × 4 = 6.8 cents
8‑hour cook on Low
- 1.7¢ × 8 = 13.6 cents
4‑hour cook on High
- 3.4¢ × 4 = 13.6 cents
8‑hour cook on High
- 3.4¢ × 8 = 27.2 cents
Even the longest recipes cost less than 30 cents in electricity.
4. Monthly Electricity Cost of a Slow Cooker
Assuming you use your slow cooker 3 times per week, 6 hours per session:
- 6 hours × 3 = 18 hours per week
- 18 hours × 4 = 72 hours per month
Using Low setting (100W):
- 0.1 kWh × 72 = 7.2 kWh per month
- 7.2 × 17¢ = $1.22 per month
Using High setting (200W):
- 0.2 kWh × 72 = 14.4 kWh per month
- 14.4 × 17¢ = $2.45 per month
Monthly cost: $1–$3 for most households
5. Slow Cooker vs Oven vs Stovetop: Energy Comparison
Wattage comparison
| Appliance | Wattage | Cost per Hour |
|---|---|---|
| Slow Cooker (Low) | 70–150W | 1–3¢ |
| Slow Cooker (High) | 150–250W | 3–5¢ |
| Electric Oven | 2,400–3,500W | 40–60¢ |
| Gas Oven | N/A | 12–18¢ |
| Electric Stovetop | 1,200–2,500W | 20–42¢ |
| Induction Cooktop | 1,800–2,200W | 18–28¢ |
Winner: Slow Cooker
Slow cookers use up to 20× less electricity than ovens and 10× less than stovetops.
6. Why Slow Cookers Are So Energy‑Efficient
Slow cookers excel because they:
- Use low wattage
- Maintain steady heat
- Have insulated ceramic inserts
- Don’t require preheating
- Don’t heat the kitchen (reducing AC usage)
They’re ideal for:
- Soups
- Stews
- Beans
- Pulled meats
- Meal prep
7. How to Calculate Your Exact Slow Cooker Cost
Use this formula:
(Wattage ÷ 1000) × Hours Used × Electricity Rate
Example:
200W slow cooker × 6 hours × 17¢ rate:
0.2 × 6 × 0.17 = 20.4 cents per meal
8. How to Reduce Slow Cooker Energy Usage Even More
8.1 Keep the lid closed
Every lift adds 15–20 minutes of cook time.
8.2 Use the right size cooker
A half‑empty 8‑quart cooker wastes energy.
8.3 Batch cook
Cooking once for multiple meals maximizes efficiency.
8.4 Use the Warm setting strategically
Warm uses half the power of Low.
8.5 Pre‑heat ingredients
Hot broth or sautéed aromatics reduce cook time.
9. Slow Cooker Energy Myths (Debunked)
Myth 1: Slow cookers use more electricity because they run for hours
False — they use very low wattage, so long cook times still cost pennies.
Myth 2: Slow cookers are less efficient than ovens
False — ovens waste heat and require preheating.
Myth 3: Slow cookers heat the kitchen
False — they release minimal ambient heat.
Conclusion
Slow cookers are one of the cheapest and most energy‑efficient appliances in the kitchen. Even with long cook times, they typically cost 1–3 cents per hour, adding up to $1–$3 per month for most households. Compared to ovens and stovetops, slow cookers deliver massive energy savings while producing tender, flavorful meals with almost no effort.
