Key takeaways
- Camping without hookups. Usually on public land, usually free, almost always somewhere a campground can't be built.
- Math is the whole game. Power, water, propane, food. Whichever runs out first ends the trip.
- The West is where most of it happens. BLM and Forest Service land make up the bulk of US boondocking real estate.
- Sizing for the average is the failure mode. Size for a cloudy day with full loads, not the brochure photo.
- Weekend and multi-week boondockers need different systems. The framework scales; the numbers don't.
What boondocking actually is (and isn't)
Boondocking is RV camping without any utility connections. No 30-amp pedestal. No water spigot. No sewer hose. The rig runs on its own systems. Whatever you brought with you in fresh water, propane, and battery charge is what you have for however long you can stretch it.
The word comes from "boondocks," American slang for a remote or rough area. Other people call it dry camping or dispersed camping or wild camping. Those terms overlap but aren't quite the same. We use "boondocking" as the umbrella that covers all of it. Camping for free, living off your rig, no plugging in, from a Walmart parking lot on a travel day to a week on BLM land outside Bryce Canyon.
"In many ways we vandwellers are just like the Mountain Men of old. We need to be alone and on the move."Bob Wells, CheapRVLiving (cited in Wikipedia)
Why people boondock
The spots. The best spots in the American West aren't in campgrounds. Boondocking gets you to the places that didn't allow for a paved loop and a dump station. A draw in Bears Ears, a high meadow above 8,000 feet, the wildflower bloom in Big Bend country in March.
The cost. A boondocking trip on BLM or Forest Service land usually costs zero to a few dollars. An RV park in a gateway town runs $60 to $90 a night. For a family doing 30-plus nights a year, the difference is thousands of dollars.
The solitude. Campgrounds put forty rigs in a parking lot under a string of LED lanterns. Boondocking puts your rig alone or near one or two others under a real night sky.
Where you can boondock in the US
Public land owned by federal agencies makes up most of the boondocking real estate in the country. The Bureau of Land Management (BLM) holds around 245 million acres, mostly in the West, and generally allows dispersed camping up to fourteen days. The default on BLM land is "boondocking allowed unless posted otherwise." The US Forest Service (USFS) holds around 193 million acres with rules that vary by district. Wildlife refuges, national grasslands, and certain Army Corps lands round out the rest. National parks generally do not allow RV-style boondocking inside park boundaries.
Three apps come up over and over for finding spots: iOverlander (community-driven, free), Campendium (detailed reviews and cell-coverage maps), and FreeRoam (free public-land sites).
"The single biggest skill in boondocking is knowing where you're allowed to camp before you get there."A recurring theme across r/Boondocking threads
The etiquette is straightforward. Stay 200 feet from water sources. Pack out all trash. Don't drive off existing tracks. Don't run generators past quiet hours (usually 10 p.m. to 6 a.m.). Leave the site cleaner than you found it.
What your rig needs to make it work
The rig needs a handful of things working together. Each one has a calculator, live or coming online, so you can size it for your real numbers instead of a brochure default.
Solar
LiveSize your panels and battery against how you actually camp. Most off-grid problems are sizing problems, not gear problems. Returns the panel wattage and battery amp-hours your real loads need, in about 60 seconds.
Water
Coming soonHow long you can stay between dumps. Gray and black water usually end the trip before fresh water does. Get notified →
Battery, propane, generator, trip cost
Coming soonBattery chemistry and size, propane days per tank, generator runtime to close a cloudy stretch, and the true cost of the trip you're planning. Each one feeds the same plan. Get notified →
Every one of these sizes for your rig and your loads, not an average rig. A Class B with a small fridge and no AC needs a different system than a Class C with rooftop AC and a microwave. When three calculators are complete, you get the readout: a personalized one-page synthesis naming your strongest area, your weakest area, and what to fix first. The readout is the point. It's in build now.
How long you can stay off-grid
The trip length is whatever the shortest dimension allows. A 200Ah LiFePO4 bank gets a 100Ah/day boondocker through two days without solar; a 400-watt array refills it by mid-afternoon on a clear day. A 50-gallon fresh tank divided by four people at 4 gallons a day is about three days, but gray water usually fills first. Two 20-pound propane tanks last a typical family 7 to 14 days in moderate weather, far less with heavy furnace use. The fridge, not the pantry, is usually the food constraint.
"The shortest tank wins. Most first-timers underestimate gray water; second-most underestimate fresh."A pattern across Quora answers to "how long can you boondock"
For a typical family of four in a 22 to 30-foot rig with no AC use, a 5 to 7 day trip is reasonable without resupplying. The point of running the calculators in sequence is to know which tank ends the trip before you leave the driveway.
What boondocking costs
Most BLM and Forest Service boondocking is free. Some areas have low permit fees, usually under $20 for a season. Here's the rough annual math for a family doing 40 nights of camping a year.
| Pattern | Annual cost |
|---|---|
| 40 nights at RV parks | $2,400 to $3,200 |
| 20 nights RV parks + 20 nights boondocking | $1,200 to $1,800 |
| 40 nights boondocking on public land | $0 to $100 |
| 40 nights via Boondockers Welcome or Harvest Hosts | $200 to $300 |
The savings are real but not the only reason. The other costs of boondocking are time, water you bring or haul, and batteries that wear faster the harder you use them.
Common first-timer mistakes
Sizing solar before sizing loads. The fridge alone is 40 to 60 amp-hours per day. If you don't know your fridge's daily draw, you don't know what solar you need. Confusing nameplate with usable capacity. A 100Ah AGM gives you 50Ah usable; a 100Ah LiFePO4 gives you 80Ah. Treating the generator as a daily plan. Daily generator runs are a sizing-failure signal. Sizing for the average day. Plan for the bad day; the system works on good days regardless. Underestimating gray water, and not knowing the local rules.
"If you've been boondocking less than two years, your sizing math is probably wrong somewhere. We rebuild ours every season."A common pattern across r/Boondocking threads
Where to start
Read the solar power guide and run the calculator
The single most useful page on the site. The four-numbers framework (loads, battery, solar, generator), with the Solar calculator built right into the page to size your panels in about 60 seconds.
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