If you are trying to keep cooking costs under control, the question usually comes down to one thing: is an instant pot cheaper than a slow cooker to run day to day? In most kitchens, the answer depends less on the appliance itself and more on how you cook with it. A slow cooker uses less power while it is running, but an Instant Pot can save money in a few situations because it cooks much faster and replaces a few other appliances.
For a lot of households, the difference is not dramatic either way. We are talking about pennies to maybe a small amount per meal, not a huge swing on the utility bill. Still, if you cook often, make a lot of beans, soups, stews, rice, or batch meals, those small differences can add up. And if your goal is to use less electricity without making dinner more complicated, it helps to know where each appliance fits.
Is an instant pot cheaper than a slow cooker?
Usually, a slow cooker is cheaper to operate per hour. It runs at a lower wattage, often around 70 to 250 watts depending on the setting and model. An Instant Pot typically draws much more power while it heats up and cooks, often somewhere around 700 to 1,200 watts, though it only runs that high for a shorter time.
That does not automatically make the slow cooker the better value. The Instant Pot can finish a meal in a fraction of the time, which means it may use less total electricity for certain recipes. If a dish would normally spend 8 hours in a slow cooker but only 30 to 45 minutes in an Instant Pot, the Instant Pot may come out ahead on total energy used. For other meals, especially those designed for low-and-slow cooking, the slow cooker stays the better option.
So the honest answer is this: the slow cooker usually costs less to run per hour, but the Instant Pot can be cheaper for some meals because it cooks faster.
How much electricity each appliance uses
The best way to compare them is to look at wattage and cooking time together. Wattage tells you how much power the appliance draws while it is on. Time tells you how long it stays on.
A rough comparison looks like this:
| Appliance | Typical wattage | Typical cooking time | Usual use pattern |
|---|---|---|---|
| Slow cooker | 70 to 250 watts | 4 to 10 hours | Low steady heat all day |
| Instant Pot | 700 to 1,200 watts during cooking | 15 to 90 minutes for many meals | High power for a shorter time |
Electricity costs vary by area, but a simple rule of thumb is to multiply the appliance’s kilowatts by the hours used, then by your electric rate. If your rate is 16 cents per kWh, which is a common ballpark in many places, the math starts to make sense quickly.
A simple cost example
Let’s say you cook a stew.
- Slow cooker: 200 watts for 8 hours
- Instant Pot: 1,000 watts for 45 minutes
Now estimate the cost:
- Slow cooker: 0.2 kW x 8 hours = 1.6 kWh
- Instant Pot: 1.0 kW x 0.75 hours = 0.75 kWh
At 16 cents per kWh:
- Slow cooker: about 26 cents
- Instant Pot: about 12 cents
That is a rough example, not a universal rule. Some slow cookers use less power than that. Some Instant Pot recipes take longer, especially if you include pressure build time and natural release. Still, it shows why the answer is not always as simple as “the smaller appliance is cheaper.”
Why the Instant Pot can save money despite using more watts
At first glance, the Instant Pot looks like the more expensive appliance. It uses much more power while it is heating. But because it cooks food quickly and seals in steam, it can cut total cooking time by a lot.
That matters because electricity use is based on both power and duration. A high-watt appliance that runs briefly can use less total energy than a low-watt appliance running all afternoon.
Here is where the Instant Pot tends to do well:
- Dry beans: Much faster than a slow cooker
- Rice and grains: Usually efficient and fast
- Broths and soups: Good for pressure cooking larger batches
- Tough cuts of meat: Shorter cooking time than slow cooking in many cases
- Last-minute dinners: Less likely to need an oven or stove burner for an hour or more
If using the Instant Pot means you avoid running the oven for a roast or heating several burners for a long simmer, the total household energy picture can improve even more. That is one reason many people keep one appliance for both pressure cooking and slow cooking duties.
Why the slow cooker still has an edge in some kitchens
A slow cooker has one obvious advantage: it is designed to use very little power for a long stretch. That makes it hard to beat for low-cost, unattended cooking.
It is especially practical when:
- You want dinner ready after a full workday
- You are making a dish that benefits from gentle, even heat
- You prefer not to monitor the pot
- You are feeding a crowd and want to keep food warm for a while
- You already know the recipe works well low and slow
Slow cookers are also simple. There is usually less pressure to learn settings, sealing valves, natural release steps, or the quirks of different recipes. For someone who just wants to throw in ingredients before leaving the house, that simplicity has value.
There is one caveat, though. A slow cooker is efficient only if you were going to cook that meal anyway. If it replaces takeout, a cooked meal from the grocery deli, or a much less efficient oven meal, it can still save money even if it is not the absolute lowest-energy appliance in the house.
Comparing real-world cooking situations
The cheapest appliance depends on what you are making. Here are a few common examples.
Beans
Beans are a good example because they can go either way. A slow cooker works, but dry beans can take many hours. An Instant Pot often cooks them in under an hour, including pressure build time.
In many homes, the Instant Pot comes out ahead here because it gets the job done faster and uses less total electricity. If you make beans regularly, that time savings is noticeable too.
Soup or broth
For soup, both appliances can work well. If you want a long simmer for deep flavor, the slow cooker is convenient. If you want soup ready the same evening, the Instant Pot may be more practical and possibly cheaper overall.
If you are making stock, the Instant Pot can be very efficient because pressure cooking extracts flavor quickly. That is one of the better use cases for it.
Pot roast or tough meat
Slow cookers have long been a favorite for pot roast because low heat breaks down tough cuts over several hours. The Instant Pot can do it faster, but the texture is different. Some people prefer the traditional slow-cooked result.
From a pure energy standpoint, the Instant Pot may use less electricity. From a food standpoint, the slow cooker may still be the better choice if you like that specific texture and are not in a rush.
Rice
Rice is one area where the Instant Pot often wins on convenience and can be efficient too. It is usually faster than a slow cooker, and many households already use it instead of a rice cooker. A slow cooker is not really the first choice for rice unless you are making a very specific recipe.
Chili
Chili is a mixed case. If you have the time, a slow cooker is easy and reliable. If you forgot to plan ahead, the Instant Pot can get dinner on the table much sooner. In cost terms, the difference may be small, but the Instant Pot can avoid running other appliances while you wait.
What the monthly utility bill really looks like
People sometimes expect a dramatic bill difference between the two appliances. In practice, the savings are usually modest. That is because even frequent cooking does not use huge amounts of electricity compared with heating and cooling your home.
Here is a reasonable example:
- Cooking with a slow cooker 3 times a week might cost around $3 to $5 a month, depending on wattage, recipe length, and your electric rate
- Using an Instant Pot for similar meals might cost around $2 to $4 a month
Those numbers can shift up or down based on usage. If you cook one big meal a week, the difference may barely show up. If you rely on one of these appliances several times a week for family meals, the gap becomes more noticeable over time.
Still, it is worth keeping perspective. A few dollars a month is not nothing, but it is smaller than the impact of ignoring drafty windows, an old refrigerator, or a thermostat set too high in winter and too low in summer. The big win with these appliances is usually convenience plus moderate savings, not a massive utility overhaul.
Other costs besides electricity
Electricity is only part of the picture. The cheaper appliance depends on how you cook, clean, and replace it over time.
Upfront purchase price
Slow cookers are usually less expensive to buy. A basic one may cost far less than a multi-function Instant Pot. If you only need one job and want the simplest purchase, a slow cooker often has the lower upfront cost.
An Instant Pot usually costs more because it replaces multiple appliances and includes pressure-cooking hardware, a sealed lid, and more controls. If you use those features, the price may be worthwhile. If you do not, it can be overkill.
Maintenance and replacement
Slow cookers are fairly low-maintenance. The main parts are the insert and lid. An Instant Pot has more pieces, including sealing rings, valves, and sometimes extra accessories. That does not mean it is fragile, but it does mean there is more to keep track of.
Replacement sealing rings and lids are not expensive, but they are another small cost. Over several years, the total ownership cost can be a bit higher for the Instant Pot if you use it heavily.
Food waste
One overlooked cost is food waste. If a slow cooker recipe is easy to overcook, or if you avoid using it because it takes too long, that can lead to wasted ingredients or more takeout. If the Instant Pot helps you cook dried beans, grains, or leftover ingredients faster, it may reduce waste in a practical way.
Energy efficiency is not the same as cooking efficiency
This is where people sometimes talk past each other. A slow cooker is energy efficient in the sense that it uses low power. An Instant Pot is efficient in the sense that it gets a job done fast, which can reduce total energy use for some meals.
Both can be efficient. They are just efficient in different ways.
- Slow cooker efficiency: low draw, low fuss, long cook time
- Instant Pot efficiency: higher draw, shorter cook time, more flexibility
If you compare them only by wattage, the slow cooker looks better. If you compare them by total energy used for a finished meal, the answer changes depending on the recipe.
That is why the best appliance is the one that fits your cooking habits. A device that sits in the cabinet is not energy efficient in any real household sense.
Common mistakes that waste electricity
Small habits can erase the savings you hoped to get from either appliance. A few avoidable mistakes show up a lot in everyday kitchens.
Using the oven for jobs either appliance can handle
If you are making a stew, chili, shredded chicken, or a pot roast, firing up the oven is usually a bigger energy draw than either a slow cooker or an Instant Pot. The oven also heats the kitchen, which can make cooling costs creep up in warmer months.
Choosing the wrong appliance for the recipe
Some meals are better in a slow cooker. Some are much better in the Instant Pot. If you force a recipe into the wrong appliance, you may end up cooking longer than necessary or using extra energy to fix the texture.
Keeping the slow cooker on longer than needed
A slow cooker can be fairly forgiving, but leaving it on for hours after dinner is ready is still wasted electricity. If your model has a warm setting, use it carefully and only as long as needed.
Opening the Instant Pot too often
Every time you release pressure or open the lid early, you can extend the cook time. That is not always a big deal, but for some dishes it can reduce the efficiency advantage.
Cooking tiny portions in a large appliance
Both appliances are usually better with reasonable batch sizes. Very small portions may cook unevenly or waste space and energy. If you are cooking for one or two, use a recipe and vessel size that matches the amount of food.
Which one is better for low-energy cooking?
If your main goal is to keep electricity use low, here is the practical breakdown:
- Pick a slow cooker if you want the lowest power draw and do not mind long cooking times
- Pick an Instant Pot if you want shorter cook times and can use pressure cooking for the meal
- Use whichever appliance keeps you from turning on the oven, since that often saves more energy than the difference between the two
For many homes, the Instant Pot is the better everyday tool because it is flexible. It can pressure cook, steam, sauté, and sometimes slow cook. That versatility means you may use it more often. A tool that gets used often is usually more valuable than one that sits around waiting for the perfect recipe.
But if you mostly make one or two simple meals, like pulled pork or chili, and you know the slow cooker method works every time, there is no need to replace it just to chase small savings.
Which one is better for your wallet?
That depends on whether you are comparing purchase price, electricity use, or long-term convenience.
| Category | Slow Cooker | Instant Pot |
|---|---|---|
| Upfront cost | Usually lower | Usually higher |
| Electricity per hour | Lower | Higher |
| Total electricity per meal | Often higher for long recipes | Often lower for fast pressure-cooked meals |
| Convenience | Simple and set-it-and-forget-it | Fast and versatile, but more complex |
| Best use cases | Soups, stews, roasts, all-day cooking | Beans, rice, broth, fast weeknight meals |
If you are buying one appliance and want the lowest purchase price, the slow cooker often wins. If you are trying to reduce cooking time and possibly shave off some electricity for certain meals, the Instant Pot may be the better long-term buy.
What about the slow cooker setting on an Instant Pot?
This is a detail that catches people off guard. Many Instant Pots can slow cook, but the results are not always the same as a dedicated slow cooker. The heating element and lid design can affect performance, and some users find that certain models do not maintain low temperatures as consistently as a classic crock-style slow cooker.
If you bought an Instant Pot hoping it would fully replace a slow cooker, test it with a simple recipe first. For some dishes it works fine. For others, a traditional slow cooker does a better job. That matters because a bad cooking result can turn into extra time, extra ingredients, and extra electricity.
If you already own an Instant Pot and it handles slow-cooked meals well enough for your needs, that can save space and reduce the need for another appliance. But if slow cooking is a regular part of your routine, a dedicated slow cooker may still be worth keeping.
Practical ways to cut cooking electricity either way
Whether you use an Instant Pot or a slow cooker, a few habits can keep energy use down.
Match the appliance to the meal
Do not make the slow cooker do a pressure cooker’s job or vice versa. The right tool usually saves time, energy, and frustration.
Batch cook sensible amounts
If you already have the appliance out and powered on, make enough for leftovers. Reheating a second meal usually uses less energy than cooking from scratch again.
Keep lids sealed properly
A loose lid can slow cooking and waste energy. For an Instant Pot, make sure the sealing ring is clean and seated correctly. For a slow cooker, keep the lid on unless the recipe says otherwise.
Use natural release wisely
With an Instant Pot, natural release can continue cooking gently without extra effort from you. That is useful for certain foods, though it is not the best choice for every recipe.
Trim preheating and standby waste elsewhere
If you are already cooking in the kitchen, avoid running extra appliances you do not need. A toaster oven, range hood, and oven can all add load. Keeping the cooking process focused helps more than obsessing over a few cents of appliance difference.
Myths and misconceptions
“The Instant Pot always uses less energy because it is faster”
Not always. Speed helps, but some recipes still take enough time, including pressure build and release, that the difference is small or even reversed.
“A slow cooker is always the cheapest appliance”
Per hour, yes, usually. Per finished meal, not necessarily. A long recipe can use more total electricity than a faster pressure-cooked one.
“The cheapest appliance is the one with the lowest wattage”
That misses the big picture. Total energy depends on wattage multiplied by time. A lower-watt appliance can still use more electricity if it runs for many hours.
“You need both”
Some households do, but plenty of people can get by with one. If you mostly cook fast weeknight meals, an Instant Pot may cover enough ground. If you prefer soups, stews, and easy all-day cooking, a slow cooker may be enough.
FAQ
Is an instant pot cheaper than a slow cooker to run?
Sometimes. A slow cooker usually uses less power per hour, but an Instant Pot can use less total electricity for meals that cook much faster under pressure.
Which uses more electricity overall?
It depends on the recipe. For long, gentle cooking, the slow cooker may use more over the full cook time. For fast pressure-cooked meals, the Instant Pot often uses less overall.
Is a slow cooker cheaper than using an oven?
Usually, yes. A slow cooker almost always uses less electricity than a standard oven for meals it can handle well.
Does the Instant Pot save money on cooking beans?
Often, yes. Dry beans are one of the better examples of where an Instant Pot can save both time and electricity compared with long cooking methods.
Should I replace my slow cooker with an Instant Pot?
Only if you would use the pressure-cooking functions enough to justify the higher upfront price and learning curve. If your slow cooker already fits your routine, there may be no need to switch.
Which is better for small households?
An Instant Pot often works well for small households because it is versatile and quick. A small slow cooker can also be a good fit if you mainly want simple set-it-and-forget-it meals.
Bottom line for everyday use
If you are asking is an instant pot cheaper than a slow cooker, the practical answer is that neither appliance wins every time. The slow cooker usually costs less to run per hour and is often cheaper upfront. The Instant Pot can be cheaper for certain meals because it cooks faster and may use less total electricity.
For most households, the better choice comes down to how you actually cook. If you want low-effort all-day meals, the slow cooker still makes sense. If you want faster dinners, more flexibility, and a better shot at reducing total cooking time, the Instant Pot is often the smarter buy. The real savings show up when you choose the appliance that fits the meal instead of forcing one tool to do everything.