Cam Range Guide

Range, for many people this is the most important part of a cam purchase. Everyone wants the most range for the least weight. Weight is easily measured on a scale, but accurate range measurements are difficult for most climbers to determine. The below images and chart clearly outline our numbers and how we measure range. Feel free to print this out and compare to others.

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Cam Range
Minimum Range
Minimum Usable Range
Maximum Usable Range
Maximum Range

Placement is secure, but difficult to place and remove.

Placement is secure, and easy to place and remove.

Placement is secure, but may move to an insecure position. A larger cam is usually better.

Placement is not secure.
A larger cam should be used.

size color range in inches range in millimeters
    min. range usable range max. range min. range usable range max. range
*00 grey 0.33 0.34 - 0.47 0.55 8.3 8.5 - 12.0 13.9
*0 purple 0.38 0.39 - 0.59 0.61 9.6 10.0 - 15.0 15.4
*1 blue 0.48 0.49 - 0.71 0.76 12.1 12.5 - 18.0 19.3
2 yellow 0.61 0.62 - 0.89 0.95 15.4 15.5 - 22.5 24.1
3 orange 0.73 0.74 - 1.04 1.13 18.5 18.5 - 26.5 28.7
4 red 0.92 0.93 - 1.32 1.40 23.3 23.5 - 33.5 35.5
5 black 1.10 1.11 - 1.54 1.70 27.9 28.1 - 39.1 43.1
6 green 1.30 1.31 - 1.85 2.05 33.0 33.2 - 46.9 52.0
7 light blue 1.58 1.59 - 2.26 2.50 40.1 40.3 - 57.4 63.5
8 light purple 1.92 1.93 - 2.80 3.05 48.7 49.0 - 71.1 77.4
Small grey 1.62 1.65 - 2.50 2.75 41.1 41.9 - 63.5 69.8
Medium maroon 2.11 2.14 - 3.35 3.65 53.5 54.3 - 85.0 92.7
Large dark blue 2.65 2.68 - 4.15 4.65 67.3 68.0 - 105.4 118.1
*Range Finder color indicator only applies to sizes #2-8


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