Power needed--
12V battery use--
Campsite Power Usage Calculator
Estimate campsite watt-hours for lights, phones, fans, fridges, and small electronics.
Updated May 2026No signup requiredBuilt for mobile
Plainspoken planning help
This tool is built for fast, no-nonsense estimating before you buy supplies, pack gear, plan a trip, or make a field decision. Enter your real numbers, check the result, and round up when running short would cost time, money, or safety.
FAQ
Campsite Power Usage Calculator questions
Is this a final professional measurement?
No. It is a practical estimate. Verify anything that affects safety, code compliance, property work, or expensive purchases.
Should I add a reserve?
Usually yes. Real-world conditions are uneven, products vary, and mistakes happen. A small reserve is often cheaper than coming up short.