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Free planning tool

Mobile detailing generator size calculator

Add simultaneous electrical loads, start-up surge and sensible headroom to estimate the generator rating your setup needs.

Enter only equipment that may run at the same time. Use the watts shown on each appliance data plate.

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Use the manufacturer’s surge figure, not a guess, before buying.
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Your planning result

3.7 kW continuous

Simultaneous running load3,100 W
Recommended continuous rating3,720 W
Recommended peak rating5,160 W

Choose a unit that meets both the continuous and peak figures. Starting currents, voltage, duty cycle and manufacturer limits still control compatibility.