WattCost

Data through June 2026

Computer Monitors · 17 certified models

38-Inch Computer Monitors

17 certified 38-inch computer monitors appear in this data, costing $13 to $25 a year to run at the U.S. average rate — median $19.

All certified models

38-Inch Computer Monitors, ranked by certified annual kWh
#ModelkWh/yr$/yr (US avg)
1EIZO FlexScan EV3851Xmost efficient73$13
2ViewSonic VA3820C87$16
3EIZO FlexScan EV389588$16
4PLANAR PZN3815Q89$16
5DELL U3824DWb100$18
6Samsung S37D700EAN101$18
7Samsung S37D800EAN101$18
8Samsung S37D800UAN101$19
9LG 38BP85C104$19
10LG 38BQ88C107$20
11ViewSonic VS16980110$20
12HP HP 738pu112$21
13LG 38BR85QC125$23
14LG 38WR85QC125$23
15Acer CB382CUR127$23
16LG 38GN95B127$23
17LG 38BN95C138$25

Other size facets

Questions, answered with the data

How much does it cost to run 38-inch computer monitors?
Among 17 certified models in this data, 38-inch computer monitors cost $13 to $25 a year to run at the U.S. average electricity rate (18.3¢/kWh) — a median of $19.
Do 38-inch computer monitors cost more or less than the average computer monitor?
The median model here runs $19 a year, 130% more than the $8.26 median across all certified computer monitors.
What's the cheapest model among 38-inch computer monitors?
The EIZO FlexScan EV3851X costs about $13 a year at the U.S. average rate (73 kWh/yr) — the lowest certified figure in this group.
What does the certified annual-kWh figure assume for computer monitors?
The certified annual kWh (TEC) assumes the monitor is on 35% of the day and asleep the other 65%, per the ENERGY STAR test basis.

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