Appliances / Refrigerators / Samsung
Samsung RF31CG7400 series
29.8 cu ft · Bottom Freezer refrigerator
Check the price at the store, then add $1,689 of electricity to get the true cost. We may earn a commission if you buy through these links.
- Price. Check what it costs at the store.
- Plus running cost. Add $1,689 of electricity over 12 years. That is the part the price tag hides.
- Compare. Pick your state below, then check the cheaper-to-run models of the same size.
About the Samsung RF31CG7400 series
The Samsung RF31CG7400 series is a 29.8 cu ft bottom freezer refrigerator certified by ENERGY STAR. Its official test figure is 774 kWh of electricity a year, which at the U.S. average price of 18.19¢ per kWh comes to $141 a year, or $1,689 over a typical 12-year life.
That is 5% less energy than the federal maximum for this type of fridge (811 kWh a year), a saving of about $7 a year compared with a model that only just meets the standard.
Among 1,422 bottom freezer models it ranks #1393 for running cost. The cheapest model of this type would save $1,253 in electricity over 12 years, though it may differ in size and features.
If you want the same type and a similar size for less to run, the Samsung RF30BB6602 series uses 545 kWh a year and would save about $500 over 12 years.
Listed features: ice maker, door dispenser.
Cost to run where you live
774 kWh a year (ENERGY STAR test figure) × 18.19¢ per kWh, the average residential price in the U.S. for Jan–Aug 2026 (EIA). Your bill depends on your utility and how you use it.
Cheaper to run, same type and size
Or see every extra large (27 cu ft and up) model ranked.
| Samsung RF30BB6602 series | 30.1 cu ft | $99/yr | saves $500 |
| LG LF27NCH10 series | 26.5 cu ft | $100/yr | saves $491 |
| LG LB26H2200 series | 25.5 cu ft | $102/yr | saves $463 |
| LG LRDCS2603 series | 25.5 cu ft | $102/yr | saves $463 |
Specs
| Brand | Samsung |
| Model | RF31CG7400** |
| Type | Bottom Freezer |
| Energy use | 774 kWh / year |
| Federal maximum for this type | 811 kWh / year |
| Size | 29.8 cu ft |
| Width | 35.8 in |
| Features | Ice maker, Door dispenser |
| Height | 70 in |
| Defrost | Automatic |
| Built-in | No |
| Compact | No |
Specs and energy use from the ENERGY STAR certified products list (U.S. EPA). An asterisk in a model number stands for colour or finish codes. HouseholdLeak is not affiliated with ENERGY STAR or the EPA.
Questions people ask
How much does the Samsung RF31CG7400 series cost to run?
About $141 a year at the U.S. average electricity price (18.19¢/kWh), based on its ENERGY STAR rating of 774 kWh a year. In a state with expensive power it can be much more; pick your state on this page to see your number.
How much will the Samsung RF31CG7400 series cost in electricity over its life?
About $1,689 over 12 years, a typical life for a refrigerator. Add that to the price you pay to get the true cost to own.
Is the Samsung RF31CG7400 series energy efficient?
Yes. It is ENERGY STAR certified and uses 5% less energy than the federal maximum for its type.
Is there a cheaper fridge to run of the same type and size?
Yes. The Samsung RF30BB6602 series uses 545 kWh a year, about $500 less in electricity over 12 years.
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