Standard American Flag Size: Why 3x5 ft Is the Standard
The standard American flag size is 3x5 ft: 3 feet tall by 5 feet wide (36 x 60 inches). It fits a 5–6 ft house-mounted pole or a 15–20 ft in-ground pole.
When people say “standard size” American flag, they almost always mean the 3x5 ft flag. It is the most widely used size for homes and small businesses.
3x5 ft flag shown
- Embroidered stars
- All-weather 210D nylon fabric
- Brass grommets
How big is a 3x5 ft flag?
A 3x5 ft flag covers 15 square feet, about 91 x 152 cm. It is 1.67 times as wide as it is tall.
Flag sizes list the height first and the width second. Here is how the common home sizes measure:
| Size (feet) | Inches | Centimeters | Height:width |
|---|---|---|---|
| 2x3 ft | 24 x 36 in | 61 x 91 cm | 1:1.5 |
| 2.5x4 ft | 30 x 48 in | 76 x 122 cm | 1:1.6 |
| 3x5 ftStandard | 36 x 60 in | 91 x 152 cm | 1:1.667 |
| 4x6 ft | 48 x 72 in | 122 x 183 cm | 1:1.5 |
The government flag spec uses a 10:19 shape; most flags made for homes, including the 3x5 ft, use 3:5.
Why is 3x5 ft the standard American flag size?
3x5 ft is the standard because it fits the most common pole heights in the United States.
A flag should measure one-quarter to one-third of its pole’s height. On a 15–20 ft pole, that works out to a 3x5 ft flag. This simple rule is why 3x5 ft became the default.
- The right presence. It looks full without overwhelming the pole.
- Balanced wind load. It flies well outdoors every day.
- Fits common hardware. It works with most home grommets, snap hooks and pole widths.
- A familiar look. Homes, schools and small businesses across the country fly it.
What pole height is a 3x5 ft flag for?
A 3x5 ft flag is the right size for a 15–20 ft in-ground pole.
It is also a good fit for:
- Larger homes with a yard pole
- Small business storefronts
- Churches and community buildings
If your pole is 15–20 ft tall, 3x5 ft is very likely your size.
2x3 ft vs 3x5 ft vs 4x6 ft: which size is right for you?
Most homes choose 3x5 ft. Pick 2x3 ft for a small porch, or 4x6 ft for a 20–25 ft pole.
Your pole height, porch and where you display the flag decide the best fit.
| Size | Pole | Best for | Visibility | Indoors | Choose it if | Shop |
|---|---|---|---|---|---|---|
| 2x3 ft | House bracket on a small porch | Small porches and balconies where a 3x5 ft would overpower the front of the house | Close range – porch or entry | Display cases, small offices | You want a smaller flag on a tight porch or bracket | Shop 2x3 ft |
| 3x5 ftStandard | 5–6 ft house-mounted pole or 15–20 ft in-ground pole | Most homes – the one size that works on a house bracket and a yard pole | Visible from the street | 8 ft indoor staff | You want one size for both a house bracket and a yard pole | Shop 3x5 ft |
| 4x6 ft | 20–25 ft in-ground pole | 20–25 ft poles, schools and larger properties; needs heavier hardware | Visible from a distance | 9 ft indoor staff | Your pole is over 20 ft and a 3x5 ft looks small | Shop 4x6 ft |
When is 3x5 ft not the right size?
Choose a different size if your porch is small or your pole is taller than 20 ft.
Small porch
If a 3x5 ft flag would overpower your entry, a 2x3 ft or 2.5x4 ft flag looks more in proportion. The 2.5x4 ft also fits a 5–6 ft house-mounted pole.
Pole of 20–25 ft
A 4x6 ft flag gives the scale that height needs. A 3x5 ft will look small.
Not sure? Match your exact setup in the American flag size chart, from 12x18 in boat flags to 8x12 ft flags.
What should you look for in a 3x5 ft American flag?
Look for a flag made in the USA from 210D nylon, with reinforced stitching on the fly end.
- 100% made in the USA
- FMAA-certified production
- 210D nylon
- Reinforced fly-end stitching
A well-made flag in the right size gives you the balanced look people expect from the standard size.
Standard American flag size: FAQ
What is the standard American flag size?
The standard American flag size is 3x5 ft. It is the most common size for homes and small businesses, and it fits in-ground poles 15–20 ft tall.
Why is 3x5 ft the standard size?
A flag should measure one-quarter to one-third of its pole’s height. On the most common 15–20 ft poles, that works out to a 3x5 ft flag.
What size American flag do most homes use?
Most homes fly a 3x5 ft flag, on a 5–6 ft house-mounted pole or a 15–20 ft in-ground pole. A 2.5x4 ft also fits a house-mounted pole, and a 2x3 ft suits a small porch.
Is there one required size for the American flag?
No. There is no single required size for every use; the right size depends on your pole height. For homes and everyday outdoor display, 3x5 ft is the most common size.
What size flag goes on a 20 ft pole?
A 20 ft pole can fly a 3x5 ft or a 4x6 ft flag. The 3x5 ft gives a balanced look; the 4x6 ft stands out more from a distance.
Keep reading
American flag size chart
Match every pole height to the right flag size, for homes and businesses.
View the chart →Indoor vs outdoor flags
How indoor display flags and outdoor flags differ in build, material and use.
Read →Flag buying guidance
What to check in stitching, headers, grommets and material before you buy.
Read →