How Much Does a LED light bulb Cost to Run? (2026 Calculator)
Typical setup: 10 W · 4 h/day · $0.180/kWh
Daily
$0.01
Monthly
$0.22
Yearly
$2.62
Quick rate
Daily cost
$0.01
Monthly cost
$0.22
+$0.00 vs typical
Yearly cost
$2.62
kWh / month
1.2 kWh
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ad-after-calculator Quick answer
A typical led light bulb uses about 10 W and costs about $0.01/day or $0.20/month at the U.S. average rate of $0.17/kWh, assuming 4 hours of use per day. At the same rate, costs range from about $0.00/day (5 W) to $0.01/day (15 W).
State explorer
Quickly spot cheapest, highest, and near-average monthly costs.
Top 10 cheapest
Top 10 highest
- Hawaii $0.48
- Massachusetts $0.37
- Maine $0.37
- California $0.36
- Rhode Island $0.36
- New York $0.34
- Connecticut $0.34
- New Hampshire $0.32
- Alaska $0.31
- District of Columbia $0.28
Cost by state (monthly)
At typical 10 W and 4 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 | 5 W | $0.11 |
| Typical | 10 W | $0.22 |
| High | 15 W | $0.32 |
Energy saving tips
- Avoid running this appliance longer than you need each day.
- Use built-in eco or energy-saving modes whenever available.
- Shift usage to off-peak hours if your utility offers time-of-use rates.
- Turn off lights when you leave a room.
- Use motion sensors or smart controls for outdoor and hallway lighting.
FAQ
- Most led light bulb units fall between 5 W and 15 W, with 10 W as a typical operating value for estimates.
- Our estimates use 10 W as the typical wattage, within a reported range of 5–15 W.
- At typical use (4 hours/day at 10 W), the estimate is about 0.04 kWh/day and 1.2 kWh/month at the U.S. average rate.
- With 4 hours/day and 10 W, this appliance uses about 0.04 kWh per day.
- At 4 hours/day, the monthly estimate is about 1.2 kWh per month.
- Per hour, the typical draw is about 0.010 kWh (at 10 W).
- At the U.S. average electricity rate of $0.17/kWh, the typical daily cost is about $0.01/day for 4 hours/day.
- At the U.S. average electricity rate of $0.17/kWh, the typical monthly cost is about $0.20/month at 4 hours/day.
- Running for one hour at 10 W costs about $0.00/hour (using 0.17 $/kWh as the U.S. average).
- With typical use (4 hours/day at 10 W), the estimate is about $0.01/day or $0.20/month at the U.S. average rate.
- The estimate is about 1.2 kWh per month, which corresponds to roughly $0.20/month at the U.S. average rate. Your real bill depends on your rate and runtime.
- Use energy-saving tips tailored to this appliance. For example: Avoid running this appliance longer than you need each day. — reducing kWh reduces the bill at your local rate.