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People and human anatomy

Human arm

The human arm is the upper limb of the body, extending from the shoulder to the hand and enabling a wide range of movement and manipulation.

Also known as: adult human arm, upper limb

How big is it?

75 cm · defined shoulder-to-fingertip length

Also 2.461 ft

Defined shoulder-to-fingertip length · representative model
Typical recorded range: 65 cm to 85 cm.

Scale illustration of the human arm, showing the recorded defined shoulder-to-fingertip length.
Recorded defined shoulder-to-fingertip length: 75 cm.

A little perspective

Human arm vs Snowshoe: length comparison

The frame length of a snowshoe is about 1.01 times the shoulder-to-fingertip length of the human arm.

Scale
Human arm

The human arm is the upper limb of the body, extending from the shoulder to the hand and enabling a wide range of movement and manipulation.

75 cmDefined shoulder-to-fingertip length
0 - shared origin
Snowshoe

A snowshoe is a footwear device designed to spread a person's weight, allowing easier movement across snow-covered ground.

76 cmDefined frame length
0 - shared origin

Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions. Horizontal rulers compare the selected spans; vertical brackets also identify height on the artwork.

Measurements, assumptions & sources +

Human arm

Defined shoulder-to-fingertip length: 75 cm; representative model; range 65 cm–85 cm.

One complete arm in a defined 70 kg adult model: 75 cm from shoulder to fingertip and 3.46 kg, using published upper-arm, forearm and hand mass fractions. This is a comparison model, not a population average.

de Leva — Adjustments to Zatsiorsky-Seluyanov segment inertia parameters

The marked defined shoulder-to-fingertip length is calibrated. Unmeasured illustration details are representative.

Snowshoe

Defined frame length: 76 cm; defined specimen; range 65 cm–90 cm.

One defined traditional teardrop snowshoe 76 cm long, 25 cm wide and 1 kg. Frames, decking and bindings vary; dimensions describe one complete shoe, not a pair.

Encyclopaedia Britannica — Snowshoe

The marked defined frame length is calibrated. Unmeasured illustration details are representative.

Use the visual comparison to explore its scale, then check the measurements and sources.

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Why this measurement?

Why we use 75 cm

We compare the shoulder-to-fingertip length of the human arm. This is a representative comparison value; individual specimens or conditions can vary. The recorded range is 65 cm to 85 cm.

One complete arm in a defined 70 kg adult model: 75 cm from shoulder to fingertip and 3.46 kg, using published upper-arm, forearm and hand mass fractions. This is a comparison model, not a population average.

The marked horizontal span follows the measured feature, not the edges of the image. How calibrated comparisons work →

Explore people and human anatomy →

Recorded properties

Dimensions and measurements

PropertySelected valueRecorded rangeBasis
75 cm65 cm to 85 cmrepresentative model
3.46 kg2.5 kg to 4.5 kgrepresentative model

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Sources and method

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