Calculate exactly what your ceramic heater costs to run per hour, day, and month. Free US tool, using EIA rates for May 2026.
Ceramic heaters use a heated ceramic element with a fan to distribute warm air. They warm rooms in a couple of minutes but stop producing heat immediately when turned off. To calculate cost: divide wattage by 1,000 to get kWh per hour, then multiply by your electricity rate. For a 1,500W ceramic heater at 18.44¢/kWh: 1.5 kWh × $0.1844 = $0.28 per hour.
Unlike an oil radiator, a ceramic heater stores almost no heat — it warms the room while it runs and stops when it stops. That makes it good for short sessions where you want warmth quickly, but it does not make it cheaper or dearer to run: at the same wattage, holding the same room at the same temperature, a ceramic heater and an oil radiator use the same electricity. What changes your bill is hours of operation and how fast the room loses heat. A 1,500W ceramic heater running 8 hrs/day uses 360 kWh and costs about $66/month at 18.44¢/kWh; at 4 hrs/day it is about $33.
Compare ceramic heaters against oil heaters in our oil vs ceramic heater comparison. For a detailed wattage breakdown, see 1500-watt heater cost guide.
| Wattage | Cost/Hour | Cost/Day | Cost/Month |
|---|---|---|---|
| 750W | $0.14 | $0.55 | $16.60 |
| 1,000W | $0.18 | $0.74 | $22.13 |
| 1,500W | $0.28 | $1.11 | $33.19 |
| 1,500W (8 hrs) | $0.28 | $2.21 | $66.38 |
US average 18.44¢/kWh (EIA Electric Power Monthly, May 2026). 30 days/month, at rated wattage throughout. Day costs assume 4 hrs/day except the 1,500W (8 hrs) row.