Sled Ride Calculator

Your details

The sled material determines the kinetic friction coefficient against snow, which is the biggest factor in how fast you go.
The slope angle in degrees. A gentle neighbourhood hill is about 10 to 15 degrees; a steep sledding run can reach 30 to 40 degrees.
deg
The distance measured along the slope surface, not the horizontal run. A typical park hill might be 40 to 100 metres long.
m
How much flat ground exists at the bottom. The calculator compares this to the stopping distance as a safety check.
m
Peak speedFast ride
31.6

Speed reached at the base of the hill

Time down the slope13.7s
Stopping distance on flat19.7
Time to stop on flat4.5s
Acceleration on slope0.64m/s²
Hill vertical height15.5
Runoff safetySafe - stops in 19.7 m (30 m available)
31.6 km/h or mph
Gentle<15Moderate15-30Fast30-45Very fast45+

You will hit 31.6 km/h - an enjoyable ride.

  • With a Plastic toboggan on a 15-degree slope, you reach 31.6 km/h at the bottom.
  • The hill drops 15.5 m vertically. Steeper angles and lower-friction sleds increase speed significantly.
  • After the slope, you need 19.7 m of flat ground to stop naturally. Always check for obstacles within that distance.
  • Your net acceleration on the slope is 0.64 m/s². Switching to a lower-friction sled or a steeper hill can raise this further.

Next stepThis looks like a manageable speed. Always scope out the runoff zone before sledding and keep the stopping distance in mind.

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