How Many Watts a Side-by-Side Refrigerator Actually Uses
A typical side-by-side refrigerator uses between 600 and 800 watts when the compressor is running
The wattage you see on your refrigerator's nameplate or in the manual is the running wattage — what the unit pulls from your wall when it is actively cooling. Most side-by-side models fall between 600 and 800 watts during this cycle. However, your refrigerator does not run continuously. The compressor cycles on and off throughout the day, which is why your actual electricity consumption is much lower than multiplying those watts by 24 hours would suggest.
The difference between running wattage and average daily draw matters for your electric bill. A 700-watt refrigerator running for, say, 8 hours per day uses about 5.6 kilowatt-hours (kWh) daily. That is roughly 168 kWh per month — far less than if it ran all day. The actual hours depend on how often you open the door, how full it is, the room temperature, and how efficiently the compressor works.
Key Takeaways
- Side-by-side refrigerators typically draw 600 to 800 watts when the compressor runs, but this is not continuous operation.
- Your monthly electricity use depends on compressor runtime, which varies with door openings, load, and ambient temperature.
- The nameplate wattage tells you peak draw; the EnergyGuide label on the appliance shows estimated annual kWh consumption, which is more useful for budgeting.
- Newer ENERGY STAR models use 15 to 25 percent less electricity than older side-by-side units, even at the same size.
- Positioning the refrigerator away from heat sources and keeping coils clean reduces compressor runtime and lowers your power draw.
Where to find the actual wattage for your model
The running wattage is printed on a label inside your refrigerator, usually on the back wall or on the frame where the door seals. Look for a small white or silver sticker that lists volts, amps, and sometimes watts directly. If you see only amps and volts, multiply them together: amps × volts = watts. For example, 10 amps at 120 volts equals 1,200 watts — though that figure is often the starting wattage (the initial surge when the compressor kicks on), not the steady running draw.
Your refrigerator's manual or the manufacturer's website will also list running wattage. Search for your model number (usually on that same interior label) plus "specifications" or "manual PDF." The EnergyGuide label, required by the U.S. Federal Trade Commission, shows estimated annual electricity use in kWh — this is the number that matters most for your actual bill. It accounts for the on-off cycling and typical use patterns.
If you want to measure your own refrigerator's real-world draw, a plug-in electricity monitor (sometimes called a kill-a-watt meter) costs $15 to $30 and plugs between the outlet and the refrigerator cord. Leave it running for a full week to capture the average, since compressor runtime varies day to day.
Why side-by-side models use more power than other layouts
Side-by-side refrigerators have a larger exterior surface area than top-freezer or bottom-freezer models of the same capacity. More surface means more heat seeps in through the walls, so the compressor has to work harder and run longer to maintain temperature. The freezer compartment on the side also tends to be narrower and deeper, which makes cold air distribution less efficient — the compressor compensates by cycling more often.
The ice maker and water dispenser, standard on most side-by-side units, add to the load. The ice maker freezes water into cubes, and the water line draws cold water from the refrigerant loop. Both tasks require extra compressor runtime. If your side-by-side has these features and you do not use them, disabling the ice maker in the settings menu can reduce wattage by 10 to 15 percent over the course of a month.
Newer side-by-side models with inverter compressors (variable-speed motors that adjust output rather than cycling on and off) use less peak wattage — sometimes 500 to 650 watts — because they ramp up and down smoothly instead of drawing full power every time they start. These models cost more upfront but lower your electricity bill over time.
How compressor cycling affects your monthly electricity bill
Your refrigerator's compressor does not run at a steady 700 watts for 24 hours. Instead, it cycles: it runs for 15 to 30 minutes, then shuts off for 15 to 30 minutes, depending on how well the unit holds temperature. In a warm kitchen or a refrigerator packed with warm food, the compressor runs more often. In a cool kitchen with a half-full, well-organized interior, it runs less.
To estimate your monthly use, find the EnergyGuide label on the appliance or in the manual. It will say something like "Estimated Yearly Energy Cost: $XX" or "Estimated Yearly Energy Use: XXX kWh." Divide the kWh by 12 to get your average monthly consumption. A typical side-by-side uses 600 to 800 kWh per year, or 50 to 67 kWh per month. At the U.S. average electricity rate of roughly $0.14 per kWh (rates vary by region and utility), that is $7 to $9 per month, or $84 to $108 per year.
Your actual bill will differ based on your local electricity rate, the age and condition of your refrigerator, and how you use it. A refrigerator that is 15 years old may use 30 percent more electricity than a new ENERGY STAR model of the same size because the compressor is less efficient and the insulation has degraded.
Steps to reduce wattage without sacrificing food safety
Keep the refrigerator away from direct sunlight, heat vents, and the oven or stove. Heat sources force the compressor to work harder. Position it with at least 2 inches of clearance on all sides, especially the back, so warm air can escape from the condenser coils. If your refrigerator is built into cabinetry, make sure the cabinet has ventilation holes or a fan to pull heat away.
Clean the condenser coils every 6 to 12 months. Dust and pet hair block airflow, forcing the compressor to run longer. Unplug the refrigerator, locate the coils (usually on the back or underneath), and vacuum them with a brush attachment or a coil-cleaning brush. This single step can reduce energy use by 5 to 10 percent.
Set the refrigerator to 37 to 40 degrees Fahrenheit and the freezer to 0 degrees Fahrenheit. Colder settings do not keep food safer — they just make the compressor work harder. Check the temperature with a separate thermometer; the dial on the refrigerator is often inaccurate. Do not overload the refrigerator; air needs to circulate. Leave space between items so cold air reaches all surfaces evenly.
Disable the ice maker if you do not use it, and turn off the water dispenser if your model has one. Both add to compressor load. If your refrigerator has a "power-saving" or "eco" mode, enable it — this reduces the compressor's target temperature slightly and lowers wattage during periods of low use.
Comparing wattage across refrigerator types and ages
| Refrigerator Type | Running Wattage | Estimated Annual kWh | Notes |
|---|---|---|---|
| Side-by-side (new, ENERGY STAR) | 500–700 W | 600–750 kWh | Inverter compressor, better insulation |
| Side-by-side (standard, 5–10 years old) | 650–800 W | 750–900 kWh | Fixed-speed compressor, moderate efficiency |
| Side-by-side (15+ years old) | 750–1000 W | 1000–1200 kWh | Worn compressor, degraded seals and insulation |
| Top-freezer (new) | 400–600 W | 400–550 kWh | More efficient layout, less surface area |
| French-door (new, ENERGY STAR) | 550–750 W | 650–800 kWh | Similar to side-by-side; depends on size |
A new ENERGY STAR side-by-side uses roughly 25 percent less electricity than a standard model from 10 years ago, even at the same capacity. The improvements come from better compressor design, thicker insulation, and more efficient door seals. If your refrigerator is older than 12 years and running constantly, replacing it with a new model can pay for itself in electricity savings within 5 to 8 years, depending on your local electricity rate.
The table above shows how wattage and annual consumption vary by type and age. Notice that a new top-freezer uses significantly less power than an older side-by-side, even though both are common kitchen appliances. When you are deciding whether to keep or replace an aging refrigerator, compare the EnergyGuide label of your current model to the label on a new one — the difference in annual kWh tells you exactly how much you will save.
Frequently Asked Questions
Does a side-by-side use more watts than a top-freezer refrigerator?
Yes. A side-by-side typically draws 600 to 800 watts running, while a top-freezer of similar capacity draws 400 to 600 watts. The side-by-side has more exterior surface area and less efficient cold-air distribution, so the compressor works harder. Over a year, the difference can be 200 to 300 kWh, or $30 to $40 in electricity cost depending on your local rate.
Will turning off the ice maker really lower my electric bill?
Yes, but not dramatically. Disabling the ice maker reduces compressor runtime by roughly 10 to 15 percent over a month, which translates to $1 to $2 per month in savings. It is worth doing if you do not use ice, but it is not a major efficiency gain on its own.
What is the difference between running wattage and starting wattage?
Running wattage is the steady power draw once the compressor is up to speed — usually 600 to 800 watts for a side-by-side. Starting wattage is the initial surge when the compressor motor kicks on, which can be 1,200 to 2,000 watts for a few seconds. Your home's electrical panel handles both; starting wattage does not affect your bill because it lasts only a few seconds per cycle.
How can I tell if my old refrigerator is using too much power?
Check the EnergyGuide label for estimated annual kWh. If it says 1,200 kWh or more per year, your refrigerator is using significantly more than a new model. You can also use a plug-in electricity monitor for a week to measure actual consumption. If the compressor runs almost constantly (more than 50 percent of the time), the unit is likely losing efficiency and may need service or replacement.
Does the size of the refrigerator affect wattage?
Yes. A 25-cubic-foot side-by-side uses more watts than a 20-cubic-foot model because there is more interior volume to cool. However, a larger refrigerator with a modern compressor may use less total electricity than a smaller, older model with a less efficient motor. Compare the EnergyGuide label, not just the running wattage, when choosing between models.