Sport Climbing Quickdraw Count Calculator
Calculate quickdraws needed for a sport climbing route from route length, average bolt spacing, and grade.
Returns bolt count and draws plus anchor.
How many quickdraws do you need?
In sport climbing, each bolt on the route requires one quickdraw. You also need one extra draw for the anchor at the top (or two if building your own anchor from draws). The number of bolts depends on the route height, bolt spacing, and local bolting ethics.
Basic formula: Quickdraws needed = (Route height / Average bolt spacing) + Anchor draws + Extras
Bolt spacing by region and style:
| Region/Style | Average Spacing | Notes |
|---|---|---|
| French sport (Verdon, Ceuse) | 2.5–3.0 m | Closely bolted, safe |
| Spanish sport (Siurana, Oliana) | 2.5–3.5 m | Well-bolted limestone |
| US sport (Red River Gorge) | 2.0–3.0 m | Varies by crag |
| US sport (Smith Rock) | 2.5–4.0 m | Some runout sections |
| Australian sport | 3.0–4.0 m | Traditionally spaced further |
| Gym routes | 1.5–2.5 m | Closely bolted for safety |
| Alpine sport (Dolomites) | 3.0–5.0+ m | Can be quite spaced |
Worked example: A 25 m route at a well-bolted French crag, taking the standard 2.75 m spacing:
- Bolts on route: 25 ÷ 2.75 = 9.09, rounded up to 10 bolts
- Anchor: 1 draw for the chain
- Extras: 1 spare
- Total: 10 + 1 + 1 = 12 quickdraws
Always round the bolt count up. Nine and a bit bolts means ten bolts, and the cost of being wrong in the other direction is standing twenty metres up with nothing left on your harness.
Route length estimation if unknown: If the guidebook does not list height, and you can see the route:
- Count visible bolts and multiply by the average spacing for the area
- Most single-pitch sport routes are 15–35 m
- Working backwards from your rope: a rope of length R lowers you safely from a route no taller than (R − 5) ÷ 2, so a 60 m rope handles routes up to about 27 m. The 5 m allows for the knot and for the rope never quite reaching the ground on a slabby lower.
Multi-pitch considerations: For multi-pitch sport routes, calculate per pitch and bring the total for the longest pitch plus 2–3 extra. Most sport multi-pitches let you clean draws at each belay.
Draw length matters:
- Standard quickdraws: 12–17 cm. Use on straight routes with bolts in a line.
- Extended draws (alpine draws): 25–60 cm. Use when the route wanders or to reduce rope drag.
- For routes over 8 bolts or with traversing sections, bring 2–3 extended draws.
Grade and bolt spacing correlation: Easier routes (5.8–5.10) tend to be more closely bolted because falls are more likely for the target audience. Harder routes (5.12+) may have wider spacing because the climber is expected to be more experienced. However, this varies enormously by crag and bolter philosophy.
How many to own: Most sport climbers own 12–15 quickdraws. This covers nearly all single-pitch routes worldwide. For long pitches (30+ m) or multi-pitch, 16–18 draws is ideal.
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