Disclaimer

Last updated: September 2026. Please read this page carefully before using our calculators.

Educational information only

All content on TrailTime — calculators, articles, tables, and examples — is published for general educational purposes. It is not athletic or travel advice and is not a substitute for a qualified professional. We are not qualified coach, trainer, or travel professionals, and no client or advisory relationship is created by your use of this Site.

Our calculators use classic pace models — Naismith's rule, Tobler-style grade corrections — calibrated on average hikers on typical terrain. Fitness, pack weight, altitude, footing, and weather swing real times widely.

Mountain travel carries real risk that arithmetic cannot see. Check local conditions, tell someone your plan, carry the ten essentials, and turn around on time — the summit is optional; the trailhead is not.

Accuracy of calculations

We implement well-known, publicly documented formulas (see the methodology section on each calculator page and published coaching and industry standards as applicable). Even correctly implemented formulas produce estimates that depend on your inputs and assumptions. Real-world outcomes vary. Do not rely on a single web tool for a consequential decision.

Advertising disclosure

TrailTime is funded by display advertising served through Google AdSense. Advertisers have no influence over our content, formulas, or editorial choices, and placement of an ad is not an endorsement.

Errors and corrections

If you spot an error, please email hello@www.trailtime.app with the inputs you used. Verified corrections are published promptly.