Annapurna Circuit Trek Elevation: The Complete 2026 Guide

Annapurna Circuit Trek elevation is the single biggest factor that separates this route from almost every other trek in Nepal. In under two weeks you move from warm subtropical valleys at under 800m to a windswept pass above 5,400m, then drop back down thousands of meters before the trail is done. That kind of swing does not just make for dramatic scenery, it shapes every decision you will make on the trail, from your daily pace to your sleeping altitude to the time you wake up on pass day. This guide breaks the elevation profile down into the checkpoints that actually matter, so you know what your body will be dealing with at each stage and how to prepare for it.

The Numbers That Define the Trek

Before the day by day detail, here is the elevation picture at a glance:

• Trek starts near Besisahar at roughly 760m (2,493ft)
• Lowest point after the pass is Tatopani at 1,190m (3,904ft)
• Highest point is Thorong La Pass at 5,416m (17,769ft)
• Manang, the main rest and acclimatization stop, sits at 3,540m (11,614ft)
• Net elevation gain from Besisahar to the pass is around 4,656m
• Oxygen availability at Thorong La is roughly half of what you get at sea level

No other classic circuit trek in Nepal asks your body to handle this much elevation change in one continuous journey.

The Route in Meters, Day by Day

This table follows the standard 13 to 16 day itinerary, which is the pacing built for safe acclimatization rather than speed.

Three Altitude Gates You Have to Clear

Rather than thinking about this trek as fourteen separate days, it helps to think of it as three gates. Each one marks a point where your body's relationship with oxygen changes, and each one demands something different from you.

Gate One: 3,000m, where risk begins

Up to Chame, the trail moves through forested valleys along the Marsyangdi River and altitude is barely a factor. Most trekkers feel no effects at all through this stretch, and the priority here is building leg strength for what comes later, ideally covering 16 to 22km a day to condition your body. That changes once you climb past Chame toward Pisang. Somewhere around Upper Pisang, at 3,300m, this is the first gate. Mild breathlessness on climbs, a bit of trouble sleeping, or a headache that fades with rest are all common signals that your body has entered the zone where altitude starts to count.

Gate Two: 4,000m, where your body starts working overtime

Manang, at 3,540m, is the last major village before the trail pushes into serious altitude, and it is also where your itinerary is built around rest rather than distance. From here to Yak Kharka (4,050m) and Thorong Phedi or High Camp (4,540m), you are climbing roughly 1,900 vertical meters over just two to three days, and this is where the risk of Acute Mountain Sickness rises sharply. Oxygen at this range is noticeably thinner, every uphill step takes more effort, and this is the stretch where your acclimatization choices in Manang either pay off or catch up with you.

Gate Three: 5,416m, Thorong La itself

This is the roof of the circuit. At 5,416m, the air holds around half the oxygen you would get at sea level, so even moderate effort feels heavy. Most experienced guides recommend leaving Thorong Phedi or High Camp between 3:00am and 5:00am, for three reasons: winds pick up dangerously in the afternoon, cloud and snow move in fast after midday, and an early start builds in a safety buffer if you move slowly or start showing AMS symptoms. Expect four to six hours up to the pass and another two to three hours down to Muktinath, with about 850m of climbing followed by roughly 1,650m of descent, making this the longest and most demanding day of the entire trek.

Manang: The Day Most Trekkers Are Tempted to Skip

Manang deserves its own mention because skipping the rest day here is one of the most common and most avoidable mistakes on the Annapurna Circuit. Above 3,500m your body needs time to consolidate the acclimatization it has been building since Besisahar, and one rest day is the minimum, with two recommended if you have no previous experience above 3,000m.

The most effective way to spend that day is an active acclimatization hike rather than sitting still. Climbing to Ice Lake at 4,600m, roughly 1,100m above Manang, and returning to sleep at the lower elevation puts the climb high, sleep low principle into practice and encourages your body to produce more red blood cells during the rest itself. Gangapurna Lake at 3,900m is a shorter alternative if you want something less demanding.

The 500 Meter Rule Behind the Whole Itinerary

The Wilderness Medical Society's guidance is straightforward: above 3,000m, your sleeping elevation should not increase by more than 300 to 500m per night compared to where you slept the night before. This applies to sleeping altitude specifically, so daytime hikes to higher points are fine as long as you return to a lower elevation to sleep. This single rule is the reason the Annapurna Circuit itinerary is structured the way it is, with Manang built in as a deliberate pause rather than a shortcut.

If you had a rough time at Yak Kharka, an extra night at Thorong Phedi or High Camp before attempting the pass is a reasonable option. Most trekkers moving at a normal pace will not need it, but it is worth considering if you are new to altitude above 4,000m or noticed symptoms earlier in the day.

Recognizing Altitude Trouble

There are three stages of altitude illness worth knowing before you go.

AMS (Acute Mountain Sickness) is the most common, usually appearing 6 to 12 hours after arriving at a new elevation, with headache, nausea, fatigue, dizziness, and poor sleep as the typical signs. A significant share of trekkers experience some form of it above 3,500m.

HACE (High Altitude Cerebral Edema) is a severe and rare progression involving brain swelling, marked by confusion, loss of coordination, and altered consciousness. It is a medical emergency requiring immediate descent.

HAPE (High Altitude Pulmonary Edema) involves fluid buildup in the lungs, with shortness of breath at rest, a persistent cough, and chest tightness. It is also a medical emergency and the leading cause of altitude related death among trekkers.

The rule that matters most in all three cases is the same: descending 300 to 500m is often enough to reverse early symptoms, and pushing higher while symptoms worsen is one of the riskiest decisions a trekker can make on this route.

What Each Altitude Band Means for Your Body

Thorong La sits right at the upper edge of the high altitude band, which is exactly why every acclimatization decision made in the days before crossing it matters so much.

How This Compares to Annapurna Base Camp

Trekkers weighing the Circuit against the Annapurna Base Camp trek should know the elevation profiles are quite different. ABC tops out at 4,130m (13,550ft), reached gradually over four to five days, which gives most reasonably fit trekkers a manageable acclimatization curve even without prior high altitude experience.

The Circuit is a different proposition. From Manang at 3,540m, you reach the pass at 5,416m in just two days, a change of 1,876m packed into the elevation range where AMS risk is highest. Both treks are achievable, but the Circuit demands more respect for pacing and a clearer understanding of what your body will face along the way.

Getting Ready for the Elevation

A few practical points worth building into your preparation:

• Start walking from Besisahar or Tal rather than driving further up the valley, since those lower stages are your body's warm up
• Aim for three to four liters of water a day once above 3,000m, and skip alcohol, which works against acclimatization
• Treat rest days as active acclimatization hikes, not lazy mornings in a teahouse
• Plan to leave for Thorong La before 5:00am
• Ask your doctor about Diamox before you travel if you want the option, understanding it supports acclimatization rather than replacing it
• Confirm your travel insurance covers helicopter evacuation above 5,000m
• Avoid a heavy meal the night before crossing the pass, since it can disrupt sleep and add to nausea the next morning
• Build months of aerobic training beforehand, including loaded uphill hikes and stair climbing, so your body is carrying less overall stress load once altitude adds its own.