Model
Ikea IX7DDEXDS*
Rank #938 means 937 of the 1,000 refrigerator models we track cost less to run each year; the 57th efficiency percentile means it uses less energy for its size than 57% of those models.
What does the Ikea IX7DDEXDS* cost to run per year?
The Ikea IX7DDEXDS* costs about $127 a year to run, well up the cost table for its class at rank #938 of 1,000. It uses 10% less energy than the U.S. federal standard model in its class, which would cost about $139/yr to run, a saving of roughly $12 a year. Its size-adjusted efficiency percentile of 57 lands in the middle of the pack once capacity is accounted for. This class has no published efficiency-factor figure beyond annual kWh itself, so at 24.7 cu ft (the class spans 1.2 to 31.7), size is the clearest lever we can point to for this model's running cost.
Immediately around it on the leaderboard, the Whirlpool WRMF3636R* at $127/yr runs a little cheaper and the Samsung RF29BB8200** at $127/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A refrigerator typically stays in service for somewhere around 12 years; over that span, the Ikea IX7DDEXDS*'s $127/yr adds up to roughly $1524 in electricity alone, before purchase price or repairs.
Also sold as: Whirlpool WRF555SDH*.
By the numbers
The Ikea IX7DDEXDS* normalized against its whole class, so each figure means something.
What it costs you over time
Running cost is an every-year number, so it compounds. At $127/yr, here is what the Ikea IX7DDEXDS* adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Ikea IX7DDEXDS* costs about $1270. That is roughly $120 less than a standard model in its class, which would run closer to $1390 over the same ten years.
How the Ikea IX7DDEXDS* compares
The refrigerator class we track runs from $8 to $149 a year. At $127/yr, it runs about $63 a year above the class median of $64, and it is about $119 a year more than the cheapest refrigerator to run at $8. Against the US federal standard model for its class at about $139/yr, the Ikea IX7DDEXDS* uses 10% less energy.
What drives its running cost
At 24.7 cu ft, the Ikea IX7DDEXDS* is a large refrigerator for its class, which spans 1.2 to 31.7 cu ft with a median of 12.6 cu ft, size is usually the single biggest lever behind a running-cost figure, and at this end of the range there is more capacity to service, which tends to push the number up.
- Interior volume. More cubic feet of cold air to maintain generally means a bigger compressor and a higher running-cost figure, even among efficient models.
- Counter depth vs standard depth. Standard-depth models generally offer more interior volume per unit of width than counter-depth models, a tradeoff between built-in looks and cubic feet.
- Compressor technology. How a compressor cycles, full on/off versus a variable-speed inverter design, is one of the biggest hidden differences behind two fridges with similar cubic feet but different running costs.
- Placement and ventilation. Ventilation clearance around the back and top matters more than most owners expect; a fridge starved of airflow runs its compressor longer to hold the same temperature.
Common questions
Is the Ikea IX7DDEXDS* cheap to run?
Its $127/yr running cost, rank #938 of 1,000, is above what most refrigerator models we track cost to run, so this is not one of the cheaper picks on electricity alone.
How much does the Ikea IX7DDEXDS* cost per month?
About $10.59 a month, which is the $127 annual estimate spread across twelve months at the US average rate of $0.1856/kWh. Your own bill scales with your local electricity rate and how heavily you use it.
How is this running-cost figure calculated?
The formula is annual kWh times price per kWh: 685 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $127 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Ikea IX7DDEXDS* for its size?
57th percentile once size is factored in. That means its size-adjusted efficiency is a real factor in the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 937 | Whirlpool WRMF3636R*24.5 cu ft | $127 |
| 936 | Lg LRFLS3216*31.7 cu ft | $127 |
| 935 | Smeg FTU171X725.6 cu ft | $126 |
| 934 | Cafe CGE29DM*T***28.7 cu ft | $126 |
| 933 | Ge Adora DFE24JYR****23.6 cu ft | $126 |
Source
ES_1092750_IX7DDEXDS*_08082014033533_2752426View certified refrigerator listingsENERGY STAR data as of July 2026Ikea and IX7DDEXDS* are used here for identification only and are not endorsements. Figures are computed by WattWise Labs from public ENERGY STAR data, not measured in our own lab.