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Tools/How curvy is my route?

How curvy is my route?

Open a route or a recorded ride and see how twisty it really is. The score counts how much the road turns per kilometre, ignoring city-block corners, the same way the MotoCurve planner rates the routes it plans.

Drop a GPX, KML or TomTom ITN file here, or

The file stays on your computer; nothing is uploaded.

Want the curvy roads found for you?

MotoCurve plans the twisty way between two places, then rides it with you with free turn-by-turn voice navigation on Android and iPhone.

Plan a curvy rideFamous motorcycle roads

Questions

How is the curviness score worked out?
It adds up how many degrees the road turns per kilometre, leaving out right-angle corners between short straight blocks so a city grid does not count as twisty.
What is a good score for a motorcycle ride?
Under 20 is mostly straight and over 80 has real twisties. The Tail of the Dragon and the best mountain roads score well over 160.
Why does my file get a low score?
A file with only a few points draws straight lines between them, which hides the curves. A recorded track, or a route exported with its full line, gives a true score.
Is my file uploaded?
No. The score and the map are made in your browser and the file stays on your computer.

More free tools

GPX, KML and TomTom ITN converter
Turn a GPX, KML or TomTom ITN route into any of the others, including a Garmin-ready GPX.
Ride time and fuel stop calculator
Distance, average speed and tank range in; riding time, fuel stops and arrival time out.

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MotoCurve is a free motorcycle route planner that finds twisty roads instead of just fast ones.© 2026 MotoCurve. All rights reserved.