By creating this innovative power converter size calculator, RV52.com solves one of the most complex tasks with RV ownership.
The task is when you try to figure out how big your RV power converter needs to be. There are a ton of appliances on your RV with complex ideas around their usage that make the calculation tricky.
Follow the blue arrows to get to the calculator.
Let RV52.com help you feel more confident about your power converter choice.
Using Pencil and Paper, you’d have to do the following steps
- Make a line on a sheet for each DC light bulb. Determine if LED or incandescent.
- Make a line item for EACH electrical component in your RV
- Make a note on each line item whether the item is DC or AC.
- Make a decision based on your “usage pattern” for each component (like how many hours you will operate something).
- Find out the power consumption for each device in your list above.
- Make sure you convert between DC and AC properly. AC appliances should not count towards the amperage calculation, but I think you should know them anyway.
- Do all the addition and multiplication.
- Now you should have the size of the SMALLEST power converter you should get to replace your current power converter.
Use this FREE RV power converter size calculator to ensure you buy the right power converter!
After completion the RV52.com computer will try to help you find matching rv power converters.
Towable Trailer Power Converter Calculator
Form used to calculate the total required Amperage for an RV power converter.
Jesse says
Can I interchange converter box and are they the same 30 amp
Jesse says
Can I use a 30 amp converter out of my other motorhome for my Coachman
Marlan at Rv52 says
I would think so. AC power in and DC power out with a battery charge function.
Marlan at Rv52 says
I wouldn’t see why not. But why not get a new converter since they are not horribly expensive?
Michael Cava says
I upgraded from a 55amp to a 75amp power converter. My Dometic fridge was working fine before the upgrade, but now freezes everything. I read your posts about the thermistor, door seals and maintenance, but I would like to know if the upgrade I did to the converter could somehow cause the fridge to start freezing everything (run colder).
Michael Cava says
I upgraded from a 55amp to a 75amp power converter. My Dometic fridge was working fine before the upgrade, but now freezes everything. I read your posts about the thermistor, door seals and maintenance, but I would like to know if the upgrade I did to the converter could somehow cause the fridge to start freezing everything (run colder).
Marlan at Rv52 says
I don’t really see how it could change anything on the fridge. As near as I know, all the electric does for the fridge is run the igniter that lights the propane for the cooling process.