Don't really need a calculator - you can pretty much do the math in your head.

Power = voltage * current
-or-
Watts = volts * amps
Since voltage is always 12 on a vanagon:
    Watts = 12 * Amps
    Amps = Watts / 12

600 Watts = 12 Volts * 50 amps

----- Original Message -----
From: "Joe Federici" <joefederici@EARTHLINK.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Thursday, January 06, 2005 12:13 PM
Subject: looking for online calculator for electricity

> Does anyone know of an online calculator for watts to amps in regard to
> how much something is using. Something that you plug in the amount of
> volts and it tell you in amps. I'd like to figure out how much draw
> certain products are using and between light bulbs like 55/80 vs
> 80/100.
>
> JFF
>