How Many Words on a Handwritten Page?

As a general rule of thumb, handwritten text is twice a big as popular fonts which have about 500 word per page when using single-spacing and a 1 inch margin. Exactly how many words are there on a handwritten page? The best estimate for essays and assignments is 250 words.

How many pages is 600, 800, 1000 or 1500 words handwritten?