What Size Crutches Do I Need for My Height?

Crutch sizing questions get answered with vague ranges everywhere else. Here are the actual numbers, by height.

The measurement that decides your size

Your crutch size is set by one number: the distance from the floor to your wrist crease while you stand upright, arms relaxed, in your everyday shoes. That is where a properly fitted handle sits, for both forearm and underarm crutches. Height predicts this number, but proportions differ, so measure rather than guess. The steps are above; it takes under a minute with a helper and a tape measure.

Height-by-height answers

These use the typical wrist-crease estimate (a little under half of standing height) plus the published ranges of the In-Motion line. Your own measurement wins over the table.

Your height	Typical handle height needed	What fits
6’0”	~36.5” to 37.5”	Top of the standard range. Standard still works; tall gives margin.
6’2”	~37.5” to 38.5”	Tall model territory begins. Most standard crutches run out here.
6’4”	~39” to 40”	Tall model required. In-Motion Tall forearm reaches 42.5”.
6’6”	~40” to 41.5”	Tall model required, and many retail “tall” models are at their limit.
6’8”	~41.5” to 42.5”	Top of the In-Motion Tall forearm range. Underarm Tall has more headroom.
6’9” to 7’1”	past 42.5” handle	In-Motion Tall underarm (floor-to-cradle 48” to 62”).

Two spec sheets sit behind that table:

In-Motion Pro Forearm Crutch (Tall): fits 5’3” to 6’8”, floor-to-handle 28.5” to 42.5” in 15 positions, 350 lb capacity.
In-Motion Pro Underarm Crutch (Tall): fits 5’10” to 7’1”, floor-to-cradle 48” to 62” in 15 positions, 350 lb capacity.

The full spec table for every In-Motion model, including the short sizes, is on Millennial Medical’s sizing page.

Underarm fit has a second number

For underarm crutches, the cradle should sit about 1 to 1.5 inches below your armpit while the handle still lands at your wrist crease. That is why the In-Motion underarm models adjust the handle independently of the cradle (16” to 20.5” below the cradle, 4 positions). If a crutch only adjusts overall length, one of the two contact points will be wrong.

Fifteen positions is not a spec-sheet brag

A range means nothing if the steps inside it are coarse. With 15 height positions across its range, the In-Motion Tall adjusts in small increments, so your measurement lands on a hole instead of between two. At tall heights, half an inch of handle error becomes a shrugged shoulder or a locked elbow all day.

One more time, because it matters: have your clinician or physical therapist confirm the final fit, especially for long-term use.

Measured and ready? Match your number to the In-Motion Tall range and get the model that actually fits. Shop at Millennial Medical →

Frequently asked questions

What size crutches for someone 6 feet tall?

At 6 feet 0 you are at the top of the standard adult range. A standard forearm crutch will usually still fit, but check that its floor-to-handle range reaches at least about 37 inches. A tall model gives you margin instead of the last hole.

What size crutches for 6 feet 4?

A tall model. At 6 feet 4 your wrist crease typically sits around 39 to 40 inches from the floor, past the range of standard adult crutches. The In-Motion Tall forearm crutch reaches 42.5 inches, so 6 feet 4 lands comfortably inside its range.

What size crutches for 6 feet 8?

The In-Motion Tall forearm crutch fits users to 6 feet 8 at the top of its published range. For margin past that, the In-Motion Tall underarm crutch fits users from 5 feet 10 to 7 feet 1.

Do they make crutches for people over 7 feet tall?

Off-the-shelf options above 7 feet 1 essentially do not exist. Up to 7 feet 1, the In-Motion Tall underarm crutch is the fit, with a floor-to-cradle range of 48 to 62 inches. Past that you are in custom territory.

How should crutches fit at the elbow?

When you grip the handle your elbow should keep a slight bend, roughly 15 to 30 degrees. A locked-straight elbow means the handle is too low. Have your clinician or physical therapist confirm the final fit.