How Much Does a Space heater Cost to Run? (2026 Calculator)
Quick rate
Daily cost
$1.48
Monthly cost
$44.36
Yearly cost
$539.68
kWh / month
270.0 kWh
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ad-after-calculator Quick answer
A typical space heater uses about 1500 W and costs about $1.51/day or $45.36/month at the U.S. average rate of $0.17/kWh, assuming 6 hours of use per day. At the same rate, costs range from about $0.76/day (750 W) to $1.51/day (1500 W).
Cost by state (monthly)
At typical 1500 W and 6 h/day. Rates from our dataset (see methodology ). Open a state for a dedicated calculator page.
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ad-after-state-table Wattage range
| Level | Watts | Est. monthly @ avg rate |
|---|---|---|
| Low | 750 W | $22.18 |
| Typical | 1500 W | $44.36 |
| High | 1500 W | $44.36 |
Energy saving tips
- Seal air leaks and improve insulation to reduce run-time.
- Use thermostats or timers so the appliance only runs when needed.
- Combine this appliance with fans or shading to reduce demand.
- Set the thermostat a few degrees higher in summer or lower in winter.
- Use ceiling fans to feel cooler at a higher thermostat setting.
FAQ
- How many watts does a space heater use?
- Most space heater units fall between 750 W and 1500 W, with 1500 W as a typical operating value for estimates.
- space heater wattage
- Our estimates use 1500 W as the typical wattage, within a reported range of 750–1500 W.
- How much electricity does a space heater use?
- At typical use (6 hours/day at 1500 W), the estimate is about 9.00 kWh/day and 270.0 kWh/month at the U.S. average rate.
- How many kWh does a space heater use per day?
- With 6 hours/day and 1500 W, this appliance uses about 9.00 kWh per day.
- How many kWh does a space heater use per month?
- At 6 hours/day, the monthly estimate is about 270.0 kWh per month.
- space heater kWh per hour
- Per hour, the typical draw is about 1.500 kWh (at 1500 W).
- How much does it cost to run a space heater per day?
- At the U.S. average electricity rate of $0.17/kWh, the typical daily cost is about $1.51/day for 6 hours/day.
- How much does it cost to run a space heater per month?
- At the U.S. average electricity rate of $0.17/kWh, the typical monthly cost is about $45.36/month at 6 hours/day.
- How much does it cost to run a space heater per hour?
- Running for one hour at 1500 W costs about $0.25/hour (using 0.17 $/kWh as the U.S. average).
- How much does space heater cost to run?
- With typical use (6 hours/day at 1500 W), the estimate is about $1.51/day or $45.36/month at the U.S. average rate.
- How much does space heater add to electric bill?
- The estimate is about 270.0 kWh per month, which corresponds to roughly $45.36/month at the U.S. average rate. Your real bill depends on your rate and runtime.
- How to reduce space heater electricity cost?
- Use energy-saving tips tailored to this appliance. For example: Seal air leaks and improve insulation to reduce run-time. — reducing kWh reduces the bill at your local rate.