When should t?he timing belt be changed? What is the average replacement cost? on 1995 Toyota Corolla

Is it by age or mileage of the car?

Asked by for the 1995 Toyota Corolla
it should be replaced at around 60000mi
Is that every 60,000 miles? If so, I missed several changes. Yikes! I have heard a variety of answers (see my reply to the original question). How dangerous is it to drive a car way beyond the shelf life of the timing belt?
1 more answer
I am trying to find out, too. I have a 1995 Toyota Corolla with 250,540 miles, and I know the original owners say they had the belt changed at around 100,000 miles. A mechanic told me if the belt breaks it will not harm the engine. Another report was that on makes prior to 1997 Toyota did not state a specific mileage for timing belt change and that unless the car was used in extreme conditions it was not necessary to do so. I know timing belts should be changed based upon mileage not age of car. Cost? Depends on your area and to whom you take the car. I have heard anywhere from $300-450. If you find out anything more definitive, I would be eager to hear.