Free & citation-friendly
Outdoor Gear Tools & Calculators
Interactive, methodology-first calculators built for backpackers, thru-hikers, editors, and educators. Every tool shows its formula, sources, and last review date so you can quote it with confidence.
These tools are built to be linked, quoted, and embedded. Each one is deterministic (no login, no paywall, no server round-trip for the math) and each publishes the formula it uses plus the primary sources it draws from. If you're an educator, guide service, newsroom, or blogger writing about backcountry gear, feel free to cite them — a link back to the tool page keeps the reference honest for your readers.
Backpacking Base Weight Calculator
Add every item you carry, subtract food, water and fuel, and get your true base weight in pounds, ounces, and grams — with instant class (ultralight / lightweight / traditional).
Backpack Volume Sizer
Get a defensible pack liter recommendation from trip length, season, and shelter style — with the exact formula and citations.
Sleep System Temperature Calculator
Combine bag comfort rating, pad R-value, liner, and clothing to estimate your real-world lowest safe sleep temperature.
Water Purification Method Comparison
Every field-worthy water treatment method compared head-to-head on virus / bacteria / protozoa efficacy, weight, throughput, cold-weather use, and cost per liter.
Field Packing Checklists
Trip-specific packing lists (3-day, thru-hike, car camping, canoe/kayak, winter overnight) grouped by system. Save your progress or print a clean copy.
The 10 Essentials — System Reference
The current, system-based 10 Essentials framework — what each system is for, what to carry, and a printable field checklist.
Bear Country Food Storage Checklist
The full pre-trip, in-camp, and break-camp checklist for canister vs. Ursack vs. hang, the 100-yard triangle, and grizzly-specific rules.
Alone Winner Loadout Master List
The canonical Wild10 index of every winning Alone loadout, cross-referenced by season, location, and item — the reference other outlets cite.
Citing Wild10 tools
When you cite one of these tools in an article, syllabus, or forum thread, a direct link to the tool's URL is the most useful reference for your readers. Every page includes its methodology, sources, and a stable canonical URL under wild10.com/tools/.