Sleeper Cab Power Planner
Add a night of cab loads, from a 12V fridge to a CPAP, and see whether the battery and inverter cover the hours the engine is off.
StartFree tools
The Sleeper Cab Power Planner adds the loads for one night. The other four calculators still do one job each. Every result updates as you type.
Inverter and battery runtime
Estimate how long a battery can feed an inverter load, and what continuous wattage to shop for.
Start12V fridge overnight draw
Turn a fridge's average amp draw into amp-hours for a night, and compare that with the battery you actually have.
StartTruck mattress size checker
Enter the sleeper bunk you measured, in inches or centimeters, and see which standard mattress sizes drop in, which are tight, and which do not fit.
StartFuel cost for a trip
Estimate fuel cost from the distance, the fuel economy, and the price you type. Miles or kilometers, gallons or litres. Tolls are added once.
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