Better double check the year of your Passport. It's not 2003.
mine has 16 inch
185/70R14
There are two tire sizes available for a 1995 Honda Passport, depending on the size of the rim for the car. These sizes are P245/70R16 106S, and P225/75R15 102Q.
Look at the tires that are on it and read the numbers. Seriously. If all else fails, a 245/70/16 should work.
The stock tire size on a 1997 Honda Passport is: 225/75SR16.0
24 by 68 I run 120/100/19
http://www.dragtimes.com/Honda-Civic-Tires-m18-n214.html
the gas capacity on my 2000 Honda passport is 21 gallons.
LX Honda Accord Coupe 2003 is using P205/65 R15 tires. EX Honda Accord Coupe, LX V-6 and EX V-6 are using P205/60 R16 tires. EX V-6 MT is using P215/50 R17 tires.
If the tires are the same size then yes.
245/70r16
It has 245 70R 16 but there are other alternatives to sizes, if you call Sears they should be able to give you a full range of other tire sizes to use.