What length should I set my trekking poles for uphill?

Ask most walkers, and they’ll tell you they use the same pole length all day – flat, uphill, and downhill alike. That’s a mistake. Uphill terrain demands a noticeably shorter pole – typically 5 to 10 cm less than your flat‑ground setting – and getting that adjustment right can transform a lung‑busting climb from a struggle into a steady, rhythmic march. This guide gives you a precise, field‑tested method for dialing in your uphill length, plus how to adapt to steepness, pack weight, and personal biomechanics.

Why shorten your poles for climbing?

When you walk uphill, your feet are higher relative to your hands than on the level. If you keep your poles at flat‑ground length, you’ll have to raise your shoulders to plant the tips ahead – this tenses your trapezius muscles, restricts your breathing, and wastes energy. A shorter pole lets you plant higher up the slope while keeping your elbows naturally bent and your torso upright. That upright posture opens your chest, improves lung capacity, and lets your glutes and quads do the climbing work, not your arms.

Additionally, a shorter pole creates a more vertical shaft angle when planted ahead, which gives you a better mechanical advantage – you push against the ground more directly, converting arm effort into forward propulsion. Over a 300‑metre ascent, this saves measurable energy.

The starting point: the 90° rule, adjusted for slope

Your baseline length comes from the classic elbow‑at‑90° test on flat ground (stand in your boots, bend your elbow to a right angle, adjust the pole so the tip rests beside your foot). That’s your “neutral” length.

For a moderate uphill (say, 10–15° gradient), shorten by 5 cm from that neutral mark. For steeper slopes (20–30°), shorten by 8–10 cm. As a general formula: reduce length by roughly 2 cm for every 10° of incline. So:

• Flat (0°) → neutral (e.g., 120 cm)
• 10° slope → 118 cm
• 20° slope → 116 cm
• 30° slope → 114 cm

These are starting values – your own arm length, stride, and flexibility will fine‑tune them.

The real‑world test: plant, step, and check

Numbers are only a guide. The true test happens on the trail. Here’s a step‑by‑step routine:

1. Find a representative uphill section – not too short, not too steep, maybe 50 metres of consistent gradient.
2. Set your poles to your calculated shorter length (e.g., –5 cm).
3. Walk 20 steps at a normal climbing pace. Pay attention to:Shoulder height – are they creeping up toward your ears? Shorten more.Elbow bend – when you plant ahead, your elbow should be at roughly 80–85° (slightly less than the flat 90°). If it’s more open (closer to 100°), you’re too long.Wrist position – your wrist should stay straight, not bent upward. If you feel pressure on the back of your hand, shorten.Breathing – if you feel tight across your chest, your poles are forcing you to hunch – shorten.
4. Adjust in 1‑cm increments until you find a length where your stride feels natural and your arms swing easily without extra effort.

Mark your settings for quick changes

Most poles have a graduated scale on the lower shaft. Use a permanent marker or a small piece of tape to mark your “uphill” length alongside your “flat” and “downhill” marks. When you reach a steep section, you can twist the lock and slide to that mark in seconds – no guesswork. Many experienced hikers have three marks: U (uphill), F (flat), D (downhill). This saves time and ensures consistency.

How pack weight changes the equation

A heavy rucksack shifts your centre of gravity backward. On an uphill, that makes you lean forward to compensate. With a fully loaded pack (10+ kg), you may find that a slightly longer uphill setting works better – about 2‑3 cm longer than your unloaded setting – because the extra forward lean already lowers your shoulders, and a longer pole helps you reach ahead without overextending. The reverse is true if you’re walking with a light daypack – stick to the standard shortening.

Practical tip: If you’re unsure, start with the standard shortening, take 10 steps with your loaded pack, then experiment by lengthening 1 cm at a time. The right length feels like your arms are just “hanging” – not pulling, not reaching.

Steepness gradients – a detailed map

• Gentle (5‑10°) – like a gradual forest road. Shorten only 2‑3 cm. Your arms barely notice the change.
• Moderate (10‑20°) – typical Lake District or Pennine climbs. Shorten 5‑7 cm. This is where most walkers benefit most.
• Steep (20‑30°) – e.g., a Scottish Munro’s final push. Shorten 8‑10 cm. Your poles should feel almost “short” – you’ll plant them quite close to your feet, using them more as thrusters than as reach‑extenders.
• Very steep (30°+) – scrambling territory. At this angle, many walkers switch to one pole or stow them entirely. If you use both, shorten a full 10‑12 cm, plant both simultaneously, and use them as a “four‑wheel‑drive” support with short, deliberate steps.

Common mistakes and how to fix them

• Keeping poles too long – the most frequent error. Symptoms: sore shoulders, shallow breathing, and a tendency to “pull” yourself up rather than push. Fix: shorten another 2 cm and feel the difference.
• Shortening too much – over‑short poles force you to bend at the waist, overworking your lower back. If you feel a stretch in your hamstrings or a stooped posture, lengthen gradually.
• Using the same length for both poles – on side‑hilling climbs (traversing), the uphill pole should be shorter than the downhill pole by 3‑5 cm to keep your shoulders level. This is an advanced adjustment but well worth mastering.
• Setting length based on height charts alone – charts give averages; your personal arm length and boot sole thickness matter more. Always verify with the elbow test on the actual slope.

The rhythm factor – let your poles lead

Once you’ve dialled in the length, focus on planting rhythm. On an uphill, plant your pole slightly ahead of your forward foot, but not as far as on the flat – because you’re moving slower, a shorter reach works better. The pole should land with a crisp tap, then you push off it as your leg drives up. Your arms should move in a natural pendulum, not a forced reach. If you feel any jerkiness, your length is still off – adjust another centimetre.

When to re‑adjust mid‑climb

A single uphill may vary in gradient. As you ascend, the slope might steepen, then ease, then steepen again. Don’t be afraid to stop for 5 seconds and twist your locks – a 2‑cm adjustment can make a huge difference. Many walkers set their poles for the average gradient of the climb, but if you have a particularly nasty pitch, shorten briefly, then lengthen again after. It takes almost no time and pays off in comfort.

Testing with a friend – a simple drill

Get a hiking partner to watch you from the side as you climb. Ask them:

• Is your back straight or rounded?
• Are your elbows flaring out or staying close to your body?
• Does your wrist bend up or stay straight?

Their external view can spot issues you won’t feel. Then swap roles – it’s a great learning exercise.

The science behind it (briefly)

Biomechanical studies show that for every 1 cm of pole length reduction on a 20° slope, shoulder muscle activation decreases by about 3‑4%. That means a 6‑cm shortening can reduce trapezius fatigue by nearly 20% over a 1‑hour climb. Similarly, knee flexion improves, reducing strain on the patellar tendon. So the adjustment isn’t just comfort – it’s injury prevention.

Final recommendation – start short, then fine‑tune

If you’ve never adjusted for uphill before, start by shortening 5 cm from your flat length. Walk 50 metres of moderate climb. If your shoulders feel relaxed and you can breathe easily, you’re close. If not, move 1 cm at a time. Mark your optimal length, and within two or three outings, you’ll have a permanent setting that becomes automatic.

Remember, the goal isn’t a precise number – it’s the feeling of effortless arm swing and open chest. When you find that sweet spot, your poles cease to be a tool and become an extension of your body. That’s when climbing transforms from a chore into a joy. So next time you face a long drag up a Welsh ridge, take those extra seconds to shorten your poles – your shoulders, lungs, and knees will thank you for every step.