A 1500-watt space heater costs about $66 per month running 8 hours/day at the US average rate of 18.44¢/kWh — 360 kWh. In Idaho, the cheapest state, that is about $44. In Hawaii it is about $187. Find your state and wattage below.
Costs assume 8 hours/day for 30 days at full rated wattage. Your actual bill will be lower by however much the thermostat holds the heater off, which depends on how fast the room loses heat rather than on the type of heater.
| State | Rate | 500W | 750W | 1000W | 1500W | 2000W | 3000W |
|---|---|---|---|---|---|---|---|
| Idaho | 12.35¢/kWh | $15 | $22 | $30 | $44 | $59 | $89 |
| Louisiana | 14.15¢/kWh | $17 | $25 | $34 | $51 | $68 | $102 |
| Tennessee | 14.47¢/kWh | $17 | $26 | $35 | $52 | $69 | $104 |
| Washington | 14.95¢/kWh | $18 | $27 | $36 | $54 | $72 | $108 |
| Kentucky | 14.98¢/kWh | $18 | $27 | $36 | $54 | $72 | $108 |
| North Carolina | 15.09¢/kWh | $18 | $27 | $36 | $54 | $72 | $109 |
| Florida | 15.17¢/kWh | $18 | $27 | $36 | $55 | $73 | $109 |
| Arizona | 15.23¢/kWh | $18 | $27 | $37 | $55 | $73 | $110 |
| Georgia | 15.84¢/kWh | $19 | $29 | $38 | $57 | $76 | $114 |
| Oregon | 16.27¢/kWh | $20 | $29 | $39 | $59 | $78 | $117 |
| Texas | 16.44¢/kWh | $20 | $30 | $39 | $59 | $79 | $118 |
| Virginia | 17.61¢/kWh | $21 | $32 | $42 | $63 | $85 | $127 |
| US Average ★ AVG | 18.44¢/kWh | $22 | $33 | $44 | $66 | $89 | $133 |
| Ohio | 19.52¢/kWh | $23 | $35 | $47 | $70 | $94 | $141 |
| Pennsylvania | 21.55¢/kWh | $26 | $39 | $52 | $78 | $103 | $155 |
| Maryland | 21.77¢/kWh | $26 | $39 | $52 | $78 | $104 | $157 |
| Michigan | 22.01¢/kWh | $26 | $40 | $53 | $79 | $106 | $158 |
| New Jersey | 23.27¢/kWh | $28 | $42 | $56 | $84 | $112 | $168 |
| Illinois | 23.85¢/kWh | $29 | $43 | $57 | $86 | $114 | $172 |
| Connecticut | 27.37¢/kWh | $33 | $49 | $66 | $99 | $131 | $197 |
| Alaska | 28.23¢/kWh | $34 | $51 | $68 | $102 | $136 | $203 |
| Massachusetts | 28.82¢/kWh | $35 | $52 | $69 | $104 | $138 | $208 |
| New York | 29.93¢/kWh | $36 | $54 | $72 | $108 | $144 | $215 |
| California | 33.25¢/kWh | $40 | $60 | $80 | $120 | $160 | $239 |
| Hawaii | 52.00¢/kWh | $62 | $94 | $125 | $187 | $250 | $374 |