Model
Samsung RT18M62*3**
Rank #567 means 566 of the 1,000 refrigerator models we track cost less to run each year; the 87th efficiency percentile means it uses less energy for its size than 87% of those models.
What does the Samsung RT18M62*3** cost to run per year?
The Samsung RT18M62*3** holds rank #567 of 1,000 on running cost, at about $68 a year, an unremarkable but typical figure for the class. It uses 10% less energy than the U.S. federal standard model in its class, which would cost about $75/yr to run, a saving of roughly $7 a year. Its size-adjusted efficiency percentile of 87 means the low running cost is not just a function of size; it is genuinely efficient for its class. This class has no published efficiency-factor figure beyond annual kWh itself, so at 17.6 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 Monogram ZIR360NN**** at $68/yr runs a little cheaper and the Ge GTE18NSW**** at $68/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 Samsung RT18M62*3**'s $68/yr adds up to roughly $816 in electricity alone, before purchase price or repairs.
By the numbers
The Samsung RT18M62*3** 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 $68/yr, here is what the Samsung RT18M62*3** adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Samsung RT18M62*3** costs about $680. That is roughly $70 less than a standard model in its class, which would run closer to $750 over the same ten years.
How the Samsung RT18M62*3** compares
The refrigerator class we track runs from $8 to $149 a year. At $68/yr, it runs about $4 a year above the class median of $64, and it is about $60 a year more than the cheapest refrigerator to run at $8. Against the US federal standard model for its class at about $75/yr, the Samsung RT18M62*3** uses 10% less energy.
What drives its running cost
At 17.6 cu ft, the Samsung RT18M62*3** is a mid-size refrigerator for its class, which spans 1.2 to 31.7 cu ft with a median of 12.6 cu ft, right in the middle of the capacity range, so capacity is roughly a wash compared with the rest of the class.
- 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 Samsung RT18M62*3** cheap to run?
Roughly, yes. Its $68/yr figure is close to the class median, ranking #567 of 1,000, neither a bargain nor a splurge on running cost.
How much does the Samsung RT18M62*3** cost per month?
About $5.63 a month, which is the $68 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: 364 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $68 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Samsung RT18M62*3** for its size?
87th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 566 | Monogram ZIR360NN****22 cu ft | $68 |
| 565 | Summit LRF182SSIM18 cu ft | $67 |
| 564 | Summit FF18W18 cu ft | $67 |
| 563 | Hisense HRT180N6A*E18 cu ft | $67 |
| 562 | Elisii DERTM181WW418 cu ft | $67 |
Source
ES_1023593_RT18M62*3**_01232017013945_70118174View certified refrigerator listingsENERGY STAR data as of July 2026Samsung and RT18M62*3** 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.