🥾 Pace Count Calculator

Calculate your pace count for land navigation. Determine how many double-paces equal 100 metres under different terrain conditions — a fundamental military and orienteering skill.

Your height

Height unit

Stride length adjustment

Terrain type

Carrying load

Distance to measure

Distance unit

Ranger Bead Counter

Ranger beads (pace count beads) use 13 beads: 9 lower (each = 100m) and 4 upper (each = 1,000m). Pull a lower bead down every 100m. When 9 are pulled, pull one upper bead and reset lower beads.

Terrain Correction Factors

🛣️ Flat / Paved

Factor ×1.0 — baseline. Calibrate your pace count on this surface.

🌿 Grass / Gentle Slope

Factor ×1.08 — slightly shorter paces due to uneven ground.

🌳 Heavy Vegetation

Factor ×1.25 — ducking and weaving shortens effective stride significantly.

⛰️ Steep Uphill

Factor ×1.35 — uphill shortens stride the most. Pace count increases significantly.

🏔️ Steep Downhill

Factor ×1.20 — stride shortens as you control descent. Less effect than uphill.

🏖️ Sand / Snow

Factor ×1.40 — loose surfaces significantly shorten effective stride length.

📏 What is a double-pace? A "pace" in military navigation = two steps (left + right foot). Count every time your LEFT foot hits the ground. This is called a double-pace. Average is 60–66 double-paces per 100 metres on flat ground for a person of average height.

🎯 Calibrating your pace count: Measure a known 100m course. Walk it 3 times counting left-foot contacts. Average the results. This is YOUR baseline pace count. It will differ from the formula — always use your measured count for real navigation.

🧮 Night navigation: In darkness, your stride shortens by 5–10%. Fatigue also shortens stride. Add a correction factor of ×1.05–1.10 for night movement or when tired. Stay conservative — it's better to overshoot and backtrack than undershoot a key checkpoint.