ATV / UTV Loading Ramp Calculator
Find the safe ramp length and load angle for loading an ATV or UTV into a truck bed or trailer, and check it against the machine’s ground clearance.
How it works
Load angle = arcsin(load height ÷ ramp length) · Gentle-angle ramp = height ÷ sin(20°)
The steepness of a loading ramp is set by how tall the load height is relative to the ramp length — mathematically the arcsine of height over length. Long, low-angle ramps are safer: a steep ramp risks the machine tipping backward, and a short one can let a low-clearance UTV high-center on the crest where ramp meets deck. Keeping the angle around 20° or less, and driving straight and slow, is the safe practice most manufacturers recommend.
Worked example
Loading onto a 34 in tailgate with an 84 in ramp gives arcsin(34 ÷ 84) = arcsin(0.405) ≈ 23.9° — moderate. To bring it down to a gentle 20°, you would want a ramp of about 34 ÷ sin 20° ≈ 99 inches.
Frequently asked questions
How long should an ATV loading ramp be?
Long enough to keep the angle around 20° or less. As a rule of thumb, aim for a ramp roughly 2.5–3 times the load height; loading into a tall truck bed needs a noticeably longer ramp than loading onto a low trailer.
Why does ramp angle matter so much?
A steep angle raises the risk of the machine flipping backward as the front rises, and it increases the chance of a low-clearance UTV dragging or high-centering at the top. A longer, gentler ramp keeps the machine stable and its underside clear.
Should I load a UTV forward or in reverse?
Follow the manufacturer’s guidance, but many recommend driving heavier machines up in the direction that keeps the center of gravity low and controllable, and always going straight up the ramp — never at an angle — with a spotter present.
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This calculator is for educational purposes. Double-check important results before acting on them.