Free Camping & Outdoor Calculators
Plan your next adventure with 85+ free calculators for camping, hiking, climbing, kayaking and more. Fast, accurate, no signup required.
Packing & Gear
Calculate pack weight, gear lists, sleeping bag ratings, tent capacity and backpack volume for your trip.
12 calculators →
Navigation
Map distance, grid references, bearings, pace counting and route planning tools for the outdoors.
12 calculators →
Food & Water
Calorie needs, water requirements, meal planning, fuel canister estimates and cooking calculations.
16 calculators →
Shelter & Sleep
Tent footprint, tarp sizing, hammock hang angles, R-value calculations and bivvy bag sizing.
12 calculators →
Weather & Safety
Wind chill, heat index, UV exposure, lightning distance, sunset times and safety risk assessment.
11 calculators →
Hiking
Distance, trail time, calorie burn, gradient, rest stops and hiking-specific planning calculators.
10 calculators →
Kayaking & Water
Paddle sizing, kayak loading, float plans, river flow, tide timing and wetsuit thickness guides.
8 calculators →
Climbing
Rope length, belay calculations, knot strength, fall factor, anchor loads and rack planning.
8 calculators →
Cycling & Bikepacking
Bikepacking weight, tyre pressure, gear ratios, calorie burn, pannier capacity and bike fit.
8 calculators →
Trip Planning
Trip budgets, campsite costs, mileage, group gear splitting, first aid kits and permit planning.
10 calculators →
Gear & Equipment
Battery life, pack weight distribution and equipment planning calculators for camping trips.
3 calculators →
Reference
Useful reference guides and charts for camping, hiking and outdoor gear.
4 calculators →
CampCalcs — Free Camping & Outdoor Calculators
CampCalcs offers 114+ free calculators across 12 categories covering every aspect of outdoor adventure. From packing your bag to navigating in the hills, planning meals to assessing weather risks, every tool is designed for UK campers, hikers, climbers and cyclists.
All calculators use metric measurements, are based on established outdoor formulas (like Naismith's rule, wind chill calculations and the rule of twelfths), and require no signup. Just enter your values and get instant results.
Browse all 114+ calculators or search above to find exactly what you need for your next trip.