CampingMath
Plan smarter. Pack lighter. Camp better.
CampingMath turns the guesswork out of camping and hiking logistics — tent sizing, sleeping bag warmth, firewood, ice, propane, hiking time, and pack weight — into clear, honest, plain-language estimates you can actually plan around.
Real math for real campsites
CampingMath is a simple, practical planning tool built by outdoorsy people, for outdoorsy people. Instead of guessing how much firewood to buy, how much water to pack, or whether your propane will last through a week's worth of meals, you get a straightforward estimate built from transparent formulas — plus the assumptions behind every number, so you know exactly how much to trust it.
What size tent do I actually need?
Manufacturer "person ratings" describe how many sleeping bags can be squeezed onto the floor shoulder-to-shoulder — not how comfortable it'll feel with gear, pets, and pads inside. Our Tent Size Calculator estimates real sleeping footprints so you can size up with confidence.
Try the Tent Size CalculatorFind the right calculator fast
Every tool below is grouped by what you're trying to figure out.
Get your site and shelter sized right
Tent Size Calculator
Find a realistic tent capacity and floor area for your group, gear, and pets.
CalculateCampsite Size Calculator
Check whether your tent, vehicles, and canopy will actually fit the pad.
CalculateSleep warm, keep things cold
Sleeping Bag Temperature Calculator
Get a recommended comfort rating based on conditions and your sleep setup.
CalculateCooler Ice Calculator
Estimate how much ice keeps your cooler cold for the whole trip.
CalculateBring enough — not too much
Campfire Wood Calculator
Estimate bundles, cubic feet, and cost for your nights around the fire.
CalculatePropane Calculator
Estimate propane runtime and cylinders needed across all your appliances.
CalculateMove at the right pace, carry the right load
Estimates you can actually trust
Answer a few plain-language questions
No spreadsheets or gear-nerd jargon required — every field has helper text explaining what it means and why it matters.
See a live, visual result
Results update as you type, with a clear primary number, supporting details, and a visual (gauge, diagram, or trail progress) where it helps.
Read the "why" behind the number
Every calculator shows its formula in plain language, its assumptions, and where real-world conditions could change the outcome.
Honest math, not false precision
Transparent formulas
Every calculator explains the logic behind its numbers in plain language — no black boxes.
Ranges over false precision
Real conditions vary, so we show ranges and label recommendations separately from exact math.
Not a substitute for expertise
These are planning estimates, not medical, engineering, or survival advice. See our disclaimer.