Data through June 2026
Running cost · Refrigerators · ENERGY STAR certified
Whirlpool WRTX7421T
The Whirlpool WRTX7421T never switches off, and its certified 482 kWh a year works out to about $88 on a U.S.-average electric bill — roughly $7.37 a month for an average continuous draw of 55 watts. It sits near the bottom of the certified table — using 33% more than the median top-freezer refrigerator (rank 704 of 713) — so the state you live in matters more than usual. Where you live moves the bill from $63 a year in Nevada to $254 in Hawaii. It also meets ENERGY STAR's stricter “Most Efficient” criteria.
Uses 10% less energy than the U.S. federal minimum
Dimensions 65" H × 33" W
Estimated annual running cost · U.S. average rate 18.3¢/kWh
$88/yr
- Per month
- $7.37
- Per day
- 24¢
- Certified use
- 482 kWh/yr
- Configuration
- Top Freezer
- Total capacity
- 21.3 cu ft
- Defrost
- Automatic
- Ice maker
- Yes
- Through-door dispenser
- No
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 16.4¢ | $79 | |
| Alaska | 28.2¢ | $136 | |
| Arizona | 15.2¢ | $73 | |
| Arkansas | 14.1¢ | $68 | |
| California | 34.7¢ | $167 | |
| Colorado | 17.1¢ | $83 | |
| Connecticut | 24.3¢ | $117 | |
| Delaware | 19.3¢ | $93 | |
| District of Columbia | 24.4¢ | $118 | |
| Florida | 15.1¢ | $73 | |
| Georgia | 16.4¢ | $79 | |
| Hawaiipriciest | 52.7¢ | $254 | |
| Idaho | 14.4¢ | $69 | |
| Illinois | 19.9¢ | $96 | |
| Indiana | 17.5¢ | $84 | |
| Iowa | 15.9¢ | $77 | |
| Kansas | 15.7¢ | $76 | |
| Kentucky | 14.3¢ | $69 | |
| Louisiana | 13.5¢ | $65 | |
| Maine | 29.6¢ | $143 | |
| Maryland | 21.8¢ | $105 | |
| Massachusetts | 29.6¢ | $143 | |
| Michigan | 23.0¢ | $111 | |
| Minnesota | 17.5¢ | $84 | |
| Mississippi | 14.9¢ | $72 | |
| Missouri | 16.2¢ | $78 | |
| Montana | 15.1¢ | $73 | |
| Nebraska | 13.3¢ | $64 | |
| Nevadacheapest | 13.1¢ | $63 | |
| New Hampshire | 27.0¢ | $130 | |
| New Jersey | 24.9¢ | $120 | |
| New Mexico | 15.1¢ | $73 | |
| New York | 29.5¢ | $142 | |
| North Carolina | 14.7¢ | $71 | |
| North Dakota | 14.1¢ | $68 | |
| Ohio | 19.2¢ | $92 | |
| Oklahoma | 14.3¢ | $69 | |
| Oregon | 16.3¢ | $79 | |
| Pennsylvania | 21.7¢ | $105 | |
| Rhode Island | 29.2¢ | $141 | |
| South Carolina | 15.6¢ | $75 | |
| South Dakota | 15.4¢ | $74 | |
| Tennessee | 14.1¢ | $68 | |
| Texas | 15.9¢ | $77 | |
| Utah | 13.4¢ | $64 | |
| Vermont | 24.4¢ | $118 | |
| Virginia | 17.2¢ | $83 | |
| Washington | 14.9¢ | $72 | |
| West Virginia | 15.4¢ | $74 | |
| Wisconsin | 19.6¢ | $94 | |
| Wyoming | 15.2¢ | $73 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| Maytag MRTX7621Tmost efficient | 482 | $88 |
| Whirlpool WRTX5421Tmost efficient | 482 | $88 |
| Whirlpool WRT541SZD*0most efficient | 483 | $89 |
| Whirlpool WRT541SZH*0most efficient | 483 | $89 |
| GE GIE21GSHmost efficient | 480 | $88 |
| GE GIE21GTHmost efficient | 480 | $88 |
Run your own numbers
Your rate, your numbers
- Per day
- 24¢
- Per month
- $7.37
- Per year
- $88
482 kWh/yr × 18.3¢/kWh = $88/yr
Prefilled with this model's certified 482 kWh/yr — adjust if your usage differs from the DOE test basis. The certified annual kWh comes from the DOE test procedure, which measures continuous 24/7 operation at standardized temperatures — refrigerators never get a day off.
Questions, answered with the data
- How much electricity does the Whirlpool WRTX7421T use?
- ENERGY STAR certifies the Whirlpool WRTX7421T at 482 kWh per year. The certified annual kWh comes from the DOE test procedure, which measures continuous 24/7 operation at standardized temperatures — refrigerators never get a day off.
- How much does the Whirlpool WRTX7421T cost to run per month?
- About $7.37 a month at the U.S. average residential rate (18.3¢/kWh) — 24¢ a day, or $88 a year. Your state's rate moves this up or down; see the table above.
- Is the Whirlpool WRTX7421T energy efficient?
- It uses 33% more electricity than the median certified top-freezer refrigerator, which puts it among the least efficient certified models. It also meets ENERGY STAR's Most Efficient criteria.
- What does the Whirlpool WRTX7421T cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $63 a year in Nevada (13.1¢/kWh) and $254 in Hawaii (52.7¢/kWh).
- How many watts does the Whirlpool WRTX7421T draw on average?
- Spread over a year of continuous operation, 482 kWh works out to an average draw of about 55 watts — like leaving a 55-watt bulb on 24/7.