For a Toyota Corolla, how much is the PSI and how to calculate

35 psi is a little on the high end for tire pressure. Would recommend going with 32 psi. Remember that the manufacturer sometimes recommends things to reduce maintenance costs (longer times between oil changes for example) or improve mileage (higher tire pressure or using 5W20 motor oil), that ultimately do not benefit the long term life of the car (or in this case the tire)

PSI vs Pounds, think of it this way - if I took a 35 pound weight and placed it on your stomach it wouldn't hurt that much, but if I put a 35 pound weight inside a spike heeled shoe and placed it on you it would hurt a lot. PSI is a measure of force per area, whereas pounds is a measure of weight.

psi is PER SQUARE INCH the pressure 35lb is psi a tire gage only reads psi