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Last updated: September 29, 2026
The most common TV question isn’t which brand. It’s what size. Buy too small and the picture feels like a window across the room. Buy too big for the wall and it overwhelms the space. The good news is there’s a simple rule, and all you need is a tape measure.
The Short Answer
For a 4K TV, TV retailer Crutchfield suggests sitting 1 to 1½ times the screen size away from it (Crutchfield; TechRadar gives the same range). Turn that around and you get the right TV size for your seat:
- Sit where you normally watch and measure from your eyes to the wall where the TV will go, in inches.
- Divide that number by 1.5. That’s the smallest size that will look right.
- Divide it by 1. That’s the largest size that will still be comfortable.
- Pick a common size in between (43, 50, 55, 65, 75 or 85 inches).
Example: your couch is 8 feet from the wall. That’s 96 inches. 96 ÷ 1.5 = 64, and 96 ÷ 1 = 96. So a 65-inch or 75-inch TV fits that room well.
The Quick Chart
| How far you sit | TV size that fits |
|---|---|
| 4 feet | 32 to 43 inches |
| 5 feet | 43 to 55 inches |
| 6 feet | 50 to 65 inches |
| 7 feet | 55 to 75 inches |
| 8 feet | 65 to 85 inches |
| 9 feet | 75 inches and up |
| 10 feet or more | 85 inches and up |
These ranges come straight from the 1 to 1½ times rule above, rounded to sizes you can actually buy. Crutchfield notes that where you land in the range comes down to personal taste, and that sitting a bit too close is less of a problem with 4K than sitting too far away and missing detail.
Will It Fit on Your Wall or Stand?
TVs are measured corner to corner, not side to side, which surprises a lot of people. A standard widescreen TV is about 87% as wide as its size and about 49% as tall. Here’s what that looks like for the screen itself (the frame and stand add a little more, so always check the exact model’s dimensions before you buy):
| TV size | Screen width | Screen height |
|---|---|---|
| 43″ | about 37½” | about 21″ |
| 50″ | about 43½” | about 24½” |
| 55″ | about 48″ | about 27″ |
| 65″ | about 56½” | about 32″ |
| 75″ | about 65½” | about 37″ |
| 85″ | about 74″ | about 42″ |
Two quick checks:
- Wall space: use painter’s tape to mark the width and height on your wall. Live with it for a day. If it looks right, it is.
- Stand or dresser: many TVs use feet near the outer edges, so a 65-inch TV can need a stand almost as wide as the TV itself. Check where the feet go on the model you’re considering.
How High to Hang It
Crutchfield’s advice is simple: every TV looks its best watched straight on, at eye level. Sit on your couch, have someone measure from the floor to your eye level, and aim for the middle of the screen to be close to that height. Hanging a TV high above a fireplace is popular, but it means looking up at the screen, which many people find uncomfortable for long movies.
What About the Bedroom or Kitchen?
The same rule works for every room. In most bedrooms you sit 6 to 8 feet from the TV, which points to about 50 to 75 inches. In a kitchen, where you glance at the TV from 4 to 5 feet away, 43 to 50 inches is usually plenty.
When to Buy
If you can wait, TVs are one of the categories where Black Friday usually beats October. Retailers often bring out special models and deeper cuts in November. See what to buy in October vs. what to wait for on Black Friday. One tip: Black Friday TVs sometimes have slightly different model numbers than the versions reviewed online, so compare the model number before you buy. Our Black Friday TV Deals 2026 page lists our top picks and how to judge a sale price.
Once you know your size, see our Best TVs in 2026 picks. Not sure what OLED, QLED and Mini-LED mean? Our simple guide to TV screen types explains the difference.
Frequently Asked Questions
Is 55 or 65 inches better for a living room?
Measure first. If you sit about 7 to 8 feet away, which is common in living rooms, the rule points to 65 inches. At 5 to 6 feet, 55 inches is the better fit.
Can a TV be too big?
Yes. If you sit closer than about 1 times the screen size, you’ll turn your head to follow the action. That’s why the rule has a largest size as well as a smallest.
Does this rule work for older 1080p TVs?
No. Lower-resolution TVs need more distance so you don’t see the pixels. TechRadar cites a range of 1½ to 2½ times the screen size for 1080p. Almost every new TV sold today is 4K, so the 1 to 1½ times rule is the one to use.
Is 8K worth it?
For most homes, no. 8K TVs cost more, there’s very little 8K content to watch, and at normal living room distances most people can’t see the difference from 4K.
The Bottom Line
Measure from your seat to the wall in inches, divide by 1.5 for the smallest size and by 1 for the largest, and pick a common size in between. Check that it fits your wall or stand, hang it at eye level, and if you can wait, buy it on Black Friday.