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What would you like to calculate?
Calculators for batteries, solar, propane, water, weight and trip costs – with a transparent calculation path and realistic assumptions for RVs, camper vans and camping.
Popular calculators
The questions people ask most often.
- Battery
Battery runtime
Calculate how long your house battery can power a load: capacity in Ah, battery type (LiFePO4, AGM, gel), power in watts, inverter – with a transparent calculation path.
Open calculator - Solar
Solar output
Calculate the realistic solar output of your RV solar system in Wh and Ah per day – by location, month, mounting and system losses, with a transparent calculation path.
Open calculator - Propane
Propane tank duration
Calculate how many days your 20, 30 or 40 lb propane tank lasts – with furnace, stove, fridge and water heater – and how many tanks you need for the trip.
Open calculator - Weight
Payload
Calculate the travel weight and remaining payload of your RV from GVWR, unloaded vehicle weight, occupants, water, propane and cargo – including a cargo carrying capacity check.
Open calculator - Travel
Trip cost
Calculate the total cost of your RV trip: fuel, tolls, campgrounds, food, rental and excursions – with cost per trip day and per person.
Open calculator - Electrical
Power consumption
Calculate your RV's daily power consumption in Wh and Ah: fridge, lights, pump, laptop, furnace and 120 V appliances through the inverter – with presets and loss calculation.
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Calculators by category
Each category groups the calculators for one topic.
Recently added
The latest calculators.
- NewBattery
Battery runtime
Calculate how long your house battery can power a load: capacity in Ah, battery type (LiFePO4, AGM, gel), power in watts, inverter – with a transparent calculation path.
Open calculator - NewSolar
Solar output
Calculate the realistic solar output of your RV solar system in Wh and Ah per day – by location, month, mounting and system losses, with a transparent calculation path.
Open calculator - NewPropane
Propane tank duration
Calculate how many days your 20, 30 or 40 lb propane tank lasts – with furnace, stove, fridge and water heater – and how many tanks you need for the trip.
Open calculator - NewWeight
Payload
Calculate the travel weight and remaining payload of your RV from GVWR, unloaded vehicle weight, occupants, water, propane and cargo – including a cargo carrying capacity check.
Open calculator
Why CampingCalc?
- Transparent: Every calculator shows the formula, the calculation steps and the assumptions made.
- Realistic: Usable capacity, efficiencies and duty cycles instead of wishful numbers.
- Private: Everything is calculated in your browser. Your inputs never leave your device.
- Honest: Results are estimates – where regulations or vehicle data matter, we say so clearly.