About OutRail

Most of the decisions that make or break a day on the trail come down to numbers worked out at the trailhead or the kitchen table the night before. How long will this route really take once you count the 900 metres of climb? How much water do you carry for a hot, exposed ridge — and how much is just dead weight? Is your pack a sensible fraction of your body weight, or the reason your shoulders ache by lunch? What time do you have to turn back to be off the mountain before dark? None of it is hard arithmetic, but doing it in your head, with tired legs and fading light on the line, is exactly when it goes wrong. OutRail was built to do that maths for you so you can spend your attention on the hiking.

The site is a set of small, single-purpose calculators, each aimed at one real question a hiker asks. The Hiking Time Calculatorfolds distance and elevation gain into a realistic time on trail with Naismith’s rule and a Tobler cross-check. The Hiking Calorie Burn Calculator uses the Pandolf load-carriage equation so your pack and the climb actually count. The Backpack Weight Calculator splits your load into base weight and consumables and checks it against your body weight. The Water Needs Calculator scales a per-hour baseline by heat and effort. The Trail Difficulty Rating turns distance and climb into a single Shenandoah number. And the Daylight Turnaround Calculator fixes the hour you must head back to finish before dark.

Beyond the calculators, the blog and learn section cover trail planning, backpacking and gear, hiking fitness and nutrition, and the national and state parks, along with the reasoning behind the numbers the tools produce. The Trails & Peaks Museum is a browsable collection of the great trails, the parks that protect them, the high peaks, and the mountaineers who climbed them, with every entry, image, and fact drawn from Wikipedia and Wikimedia Commons.

A few things worth stating plainly. OutRail is an independent site, not a guiding service, a mountain-rescue authority, or a medical provider, and it is not affiliated with any park, brand, or trail association. It is supported by advertising, which is how the tools stay free with no account required. Every result — a hiking time, a calorie figure, a turnaround clock — is a general estimate built on the numbers you enter and on standard formulas, not a guarantee about the mountain. Conditions, weather, and your own fitness are specific to the day, so treat every figure as a planning aid, carry the ten essentials, and use your own judgement. If a tool looks off, or you think a calculator is missing that would help, the contact page is the place to say so.