Treadmill Dimensions List: Width, Length and Height

A treadmill is a pretty big piece of equipment. But how big are they exactly and what sizes are available out there? Here’s what you want to know.

The average size of a home treadmill is; 33.9” (w) x 75” (l) x 57.9” (h). Although some are as wide as 40″ and 85″ long while others are smaller. Belt length and width are the main deciding factor for overall treadmill dimensions. To use the treadmill, at least 2″ free on all sides is necessary.

If you want to know why that is and where the numbers came from, keep reading below.

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Treadmill Dimensions List

Just throwing some numbers out there might help you but it’s also good to see where the numbers come from to see what the options are and what to expect from a treadmill.

Here’s a chart with many popular models of home treadmills and their dimensions.

Looking for a good spot to put your treadmill? Click here for a breakdown of the best places.

Brand	Model/Series	Width (Inch)	Length (Inch)	Height (Inch)	Belt width (Inch)	Belt length (Inch)	Step up height (Inch)
Life Fitness	T3	34.5	79.5	57.5	20	60	7
	T5	32	79.5	61	22	60	7
	F3	34.5	78.5	58.5	20	60	8
Sole Fitness	F63	35	82	66	20	60	8
	F80	37	82	66	22	60	8
	F85	37	82	66	22	60	8
	TT8	36	82	58	22	60	8
	F65	37	82	66	22	60	8
	S77	36	82	58	22	60	8
Landice	L7	35	76	59	20	58	5.5
	L8	35	83	61	22	63	7.5
BowFlex	10	39.6	85	65.3	22	60	?
	22	39.6	85	70	22	60	?
Nautilus	T616	35.2	77.2	57.6	20	60	9
	T618	37.6	78	62.8	20	60	9
Xterra	TR150	28.75	63.4	51.4	16	50	3.3
	TR200	28.75	63.4	51.4	16	50	3.6
	TR300	35	72.2	54.1	20	55	5.8
	TR6.4	35	75.2	54.1	20	58	5.8
	TR6.6	35	78.9	57.1	20	60	5.2
	TRX1000	29.5	64	51	16	50	3.3
	TRX2500	35.5	72.3	56.1	20	55	5.8
	TRX3500	35.5	77.2	56.1	20	60	5.8
	TRX4500	35.5	77.2	56.1	20	60	5.8
	TRX5500	35.5	77.2	56.1	20	60	5.8
True Fitness	M30	29.5	74	54	20	58	6.5
	M50	29.5	74	54	20	58	7
	Z5.0	28	68	55	20	54	5.5
	Z5.4	30	68	55	22	54	5.5
	Performance 100	32.6	79	57	21	60	6.4
	Performance 300	32.6	79	57	21	60	6.25
	Performance 800	32.6	79	57	21	60	6.25
	950	34.5	79	62	21	60	6.25
	Excell 900	34	82	60.4	22	60	9
3G	Lite Runner	29.75	67	52.5	18.5	51.5	6.5
	80i	33	74	49	18.5	58	6
	Pro Runner	35	74	58.5	20.5	58	6.5
	Elite Runner	35.5	84	58	22	62	7.5
LifeSpan	TR1200i	33	70.25	55	20	56	8.25
	TR2000e	33	71	56	20	56	8
	TR2000i	32.9	70.7	55.7	20	56	8.25
	TR3000i	33	71	56	20	56	9
	TR4000i	34.5	73	55.5	22	60	9
	TR5500i	34.5	73	55.5	22	60	9
Horizon Fitness	T101	34	70	55	20	55	7.125
	T202	34	75	58	20	60	7.25
	T303	34	75	58	20	60	7.25
	7.0AT	36	76.5	59	20	60	8.625
	7.4AT	37	76	63	22	60	8.75
	7.8AT	37	76	64	22	60	8.75
Schwinn	810	35.6	69.1	56.7	20	55	9
	830	35.2	72.2	57.6	20	55	9
	870	35.2	77.2	57.6	20	60	9
BodyCraft	T400	35	80	59	20	61	?
	T800	35	80	59	20	61	?
	T1000	35	85	59	22	62	?
NordicTrack	EXP7i	35.3	77.3	59.6	20	60	?
	EXP10i	35.08	79.9	59.25	20	60	?
	T6.5s	35.75	67.5	73	22	55	8
Sunny Health	SF-T7955	34.5	70.7	59.5	20	54	8
	SF-T4400	25.5	62	50	15.5	49	?
	7750P	28	57	48	19	51	6
	SF-T7917	32	69	56	19	52	11
	SF-T7857	29	58	53	19.5	44	?
Average		33.9	75	57.9	20.3	57.7	7.2

• The average size of a home treadmill is; 33.9” (w) x 75” (l) x 57.9” (h)
• Home treadmill widths range from 25” to 40” although the majority of models has a width of 32” to 36”.
• Treadmill lengths range from 57” to 85” but the majority of models falls into the 70” to 80” range.

While getting a treadmill that fits in your space is important, it’s not the only factor when choosing one. You can find a complete guide of what to look for by clicking here.

Belt Size vs. Treadmill Size

You might wonder why there is such a big difference in treadmill sizes, especially the length can vary widely. The biggest reason for that is the belt size. The belt is the spinning part you actually walk on. They come in different sizes which makes up the bulk of the difference.

The most common size for treadmill belts is 20” x 60”. As you can see from the chart above, many models for home gyms are that size. However, there are also quite a few that deviate from that size. Of course if you have a larger/smaller belt, the whole machine will be larger or smaller.

There are also some differences in packaging between models that can make a certain belt size treadmill smaller/larger but in general, the treadmill scales with the belt.

The belt size is important because it impacts what you can do on it. Short belts aren’t well suited for running while narrow belts might not fit your size.

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Don’t Buy a Small Treadmill Because It Fits

You might be tempted to buy a compact treadmill because it fits in your space. However, it’s very important to think about what you want to do with your treadmill and how big you are.

As said above, small treadmills tend to have smaller belts. Smaller can mean shorter as well as narrower.

By far, most treadmill belts are 20” wide. A few are narrower and a few are wider. 20” is the most popular width because it just works to run on for the vast majority of people in the population. If you are anywhere near a normal size, a 20” wide belt is fine.

For normal sized people as little as 16” wide is OK for just walking although 18” is better. For running 20” is much better.

The length of a treadmill belt is even more important. It dictates what you can do with your treadmill but it’s also dependent on your height. Let me explain;

When you run you move your feet further in one step then when walking. That means you need a longer belt to run on than to walk on otherwise your foot could land outside the belt and that’s not going to be fun. Sprinting needs more length than jogging which in turn needs more length than walking.

Suggested: What’s the top speed of a treadmill?

How much treadmill belt length do you need exactly? That depends on your height. (Or more specifically, the length of your legs but height is a good proxy). The taller you are, the more belt length you need because your feet will land further apart.

In the following links you can find the average stride length for walking.

Stride length by height (walking)

Those are the stride lengths for walking, but that doesn’t mean that’s the size belt you need. You’ll want at least 10” extra belt length on top of your stride length. However, even the tallest person can walk on the shortest treadmill in the list above.

For running, things change quite a bit. Olympic sprinters have stride ratio (height to stride length) of 1.14 to 1.35. Those are Olympic level sprinters though. During sprinting, you take longer strides than while jogging/running. Also, Olympic athletes are a bit different from us normal people.

A good rule of thumb is multiplying your height in inches by 0.8 to get an approximation of the needed belt size to run on.

That means you have to think about; how tall you are (or any other users) and if you want to run or just walk on your treadmill. That’s why choosing a treadmill just on size is not a good idea. However, once you picked a belt size, you can choose the smallest treadmill within that category.

Suggested post: Will a treadmill damage my floor?

Treadmill belt size chart

Here is a little chart that will help you choose the right length belt to run on.

Height	Inches	Belt length
5	60	48
5.2	62	50
5.4	64	52
5.6	65	52
5.8	68	55
5.1	69	55
6	72	58
6.2	74	60
6.4	76	60
6.5	78	62