How Much Farther Does a Football Fly at Altitude?

A long field goal that falls just short at sea level might clear the crossbar in Denver. The reason is real, but the size of the advantage is easy to misunderstand: about 14% less air resistance does not mean 14% more distance.

For an otherwise identical kick, Denver’s thinner air can add a few yards of flight. Here’s why—and why that extra distance is not a fixed bonus you can attach to every attempt.

What Changes When You Kick at Altitude?

Air may be invisible, but a moving football has to push through it. That produces aerodynamic drag, the force that resists the ball’s motion relative to the surrounding air.

At higher elevations, the atmosphere is less dense: there is less air mass in a given volume. The ball therefore encounters less resistance as it flies.

Under a standard atmosphere—a reference model that describes how typical atmospheric conditions change with height—air density at Denver’s roughly mile-high elevation is about 14% lower than at sea level. Provo is at a broadly similar elevation, so the altitude effect is in the same ballpark.

That comparison is a useful baseline, not a promise about the weather on game day. Actual air density also depends on temperature and atmospheric pressure.

Altitude gives the ball thinner air to travel through. It does not give the ball a stronger initial kick.

To isolate the altitude advantage, imagine launching the same football with the same speed, angle, orientation, and spin, in still air at both locations. The important difference is what happens after it leaves the foot.

Why 14% Thinner Air Means About 14% Less Drag

A standard way to describe aerodynamic drag is:

D = \frac{1}{2} ρ C_{D} A v^{2}

In words, the drag force depends on air density, how the ball presents itself to the air, and how fast it moves through that air.

The symbols mean:

Symbol	Meaning	Intuition
$D$	Drag force	How strongly the air resists the ball’s motion
$ρ$	Air density	How much air mass occupies a given volume
$C_{D}$	Drag coefficient	A measure of how the ball’s shape and orientation affect resistance
$A$	Reference area	An area used to describe the ball’s aerodynamic size
$v$	Speed relative to the air	How quickly the ball moves through the surrounding air

The key feature is that air density appears as a direct multiplier. If density falls by 14%, while everything else in the equation stays the same, drag also falls by about 14%.

So, at the same speed and with the same aerodynamic presentation, a football in Denver experiences roughly 86% of the drag it would experience under standard sea-level conditions.

There are two important qualifications:

The comparison is at the same speed. As the two balls follow different trajectories, their speeds will no longer match throughout the flight.
A football’s aerodynamic presentation matters. Its orientation and spin affect how it encounters the air, so a single drag coefficient is an approximation.

The equation explains the basic altitude advantage, but predicting an entire kick requires following the ball through its flight. NASA’s educational material provides background on how air density changes with altitude.

Why the Distance Gain Is Much Smaller Than 14%

It is tempting to turn “14% less drag” into “14% farther.” But drag is only one part of the flight.

Gravity still brings the ball down

Even without any air resistance, a kick would not keep traveling indefinitely. Gravity would pull it back to the ground.

Reducing drag removes some of the aerodynamic penalty; it does not remove the limit imposed by the launch speed, launch angle, and gravity.

Drag changes throughout the flight

The $v^{2}$ term means that drag depends on the square of air-relative speed. If speed doubles and the other factors stay unchanged, drag becomes four times as large.

A kicked football does not maintain one speed. It slows while climbing, changes direction near the top of its trajectory, and accelerates downward as it falls. Its horizontal motion is also being resisted by the air.

As a result, the altitude benefit accumulates through a changing flight rather than acting like a simple percentage added to the final distance.

The trajectory changes, not just the endpoint

With less drag, the ball generally retains more of its forward speed. But its height and timing along the way also change.

That matters because a field goal is not a contest to see where the football eventually lands. It is a test of where the ball is when it reaches the goalposts.

So How Many Extra Yards Are We Talking About?

A few extra yards is a reasonable scale—not a universal allowance.

One physics model discussed in Wired’s examination of Denver field goals estimated roughly 4–5 additional yards of total flight distance for a particular kick moved from sea level to Denver.

A separate study of punts estimated a Denver altitude effect of about 1.6–3.5 yards. That supports the general scale of a modest distance gain, but it should not be treated as a direct measurement of field-goal range. Punts and field goals have different launch conditions and flight characteristics.

Estimate	What it describes	What it does not establish
About 14% less drag	Same-speed comparison under standard atmospheric conditions	A 14% increase in distance
Roughly 4–5 extra yards	Total flight distance in one modeled kick	A guaranteed gain for every field goal
Roughly 1.6–3.5 extra yards	Estimated altitude effect for punts	A field-goal-specific measurement

The sensible conclusion is not “Denver adds five yards.” It is that altitude can provide a small but meaningful advantage, especially near a kicker’s range limit.

Extra Flight Distance Is Not the Same as Extra Field-Goal Range

A successful field goal must pass between the uprights and above the crossbar, which is 10 feet above the ground.

Imagine two otherwise identical kicks approaching the posts:

At sea level, the ball has lost enough speed that it falls below the crossbar.
In thinner air, the ball retains more speed and reaches the posts with enough height to clear it.

That is the altitude advantage in its most useful form.

But knowing that a ball lands four yards farther away does not tell you exactly how much farther back you could attempt a successful field goal. You also need to know the ball’s height at the posts.

Landing distance measures where the flight ends. Field-goal range depends on clearing a height requirement before it ends.

What Can Change the Advantage on Game Day?

Elevation stays put; atmospheric conditions do not.

Temperature: Warmer air is less dense than colder air at the same pressure.
Pressure: Weather-related pressure changes alter density at a given location.
Wind: Drag depends on speed relative to the air, not just speed over the field. A headwind or tailwind changes that relationship.
Launch conditions: Small differences in kick speed, angle, orientation, and spin affect the resulting trajectory.

The National Weather Service’s explanation of density altitude describes how atmospheric conditions combine to make air behave as though it were at a different elevation.

The Bottom Line

For the same well-struck football, Denver or Provo generally offers less aerodynamic resistance than sea level. At Denver’s elevation, a standard-atmosphere comparison gives about 14% less drag at the same speed.

The resulting distance gain is much smaller: a few yards is a useful expectation for scale, not a guaranteed correction. On a routine kick, that may make little practical difference. On a borderline long attempt, it can be the difference between falling short and clearing the crossbar.