How hard is Kilimanjaro? Difficulty and success rate

Kilimanjaro is not a technical climb. There are no ropes, no crampons on the standard routes and no climbing skills to learn. It is a long walk up a very big mountain, and the summit of Uhuru Peak sits at 5,895 m / 19,341 ft. The challenge is not technique. It is the altitude, the cold, the length of the days and the summit night.

You need to be fit enough to walk for five to eight hours a day, several days in a row, carrying a light daypack, and still be able to walk for ten to fourteen hours on summit day. That is a strong base of general fitness, but not an athlete's level.

People like to ask about the summit success rate. Estimates vary widely between operators and sources, and we do not quote a single figure, because a number without context misleads. How operators count success, which routes they count and how many days they allow all change the answer.

What we can say is that longer routes with gradual height gain, such as the Lemosho and the Northern Circuit, tend to do better than shorter ones. More days means more time to acclimatise, and acclimatisation is the single most important factor. When you compare operators, ask how they define and track success.

Altitude sickness, properly called acute mountain sickness, is common on Kilimanjaro. Early signs are often a headache and nausea, followed by dizziness, tiredness, loss of appetite and poor sleep. Mild symptoms are not unusual and often ease with rest, fluids and a slower pace. The rule is simple: tell your guide straight away and do not climb higher if your symptoms are getting worse.

More serious signs need immediate action, and the treatment is to descend promptly. A good operator checks the health of the group every day, with oxygen levels measured morning and evening at each camp, and carries emergency oxygen with the team. We do not give medical advice, so talk to your own doctor before you travel.

Summit night is the hardest part of the trip for nearly everyone. You usually wake around midnight, eat something, dress in all your layers and set off by head torch in the cold and dark, walking slowly in single file up a steep slope toward the crater rim. Most climbers reach Stella Point at 5,739 m as first light spreads, and the walk on to Uhuru Peak takes a further stretch along the rim.

Not everyone reaches the top, even with excellent training and a good guide. Weather, health and altitude can all decide the outcome. If you turn back, you have still made a serious trek and used good judgement. Reaching the top matters, but getting home well matters more.

A 12-week plan is a sensible length for most people. Build a base with regular walking and strength sessions, raise the load with weekend hikes of two to four hours with a daypack, and in the last month add back-to-back hiking days, which copy the tiredness of day three on the mountain. Break in your boots, practise with the daypack you will carry, and taper in the final week.

Insurance should explicitly cover trekking to 6,000 m, evacuation and medical care. Talk to your doctor early, especially if you have a heart, lung or blood pressure condition, are pregnant or take regular medication.