Trailpedia

The outdoor knowledge graph

Every outdoor term,
clearly defined.

From belay to bergschrund — 512 cited definitions across nine sports, plus comparisons and free interactive tools.

512terms
9sports
89comparisons
5tools

Interactive tools

Real science — the part AI can’t surface.
All tools →
Calorie Calculator
Calories burned hiking — Pandolf equation.
Pace & Time
Trip time — Naismith + Langmuir.
Base Weight
Gear list & ultralight tier.
R-Value Advisor
Pad R-value & bag rating.
Grade Converter
YDS · French · UIAA · V-scale · Font.

Settle the debate

89 side-by-side comparisons.
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Skiing vs SnowboardingDown vs SyntheticBoots vs Trail runnersCanister vs Liquid-fuelSleeping bag vs QuiltFilter vs Purifier
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