I always find the currency converter from XE to be easy to use.
Use the following web address:
http://www.xe.com/ucc/
If you cannot click on it just copy and paste it into your browser.
Once you have brought the page up, use the Universal Currency Converter table. In the Convert box place 1. In the From this currency box scroll until you find United States Dollars ? USD. And in the To this currency box scroll down until you find Philippines Pesos ? PHP.
Then just click on the GO box and it will calculate what the US dollar is worth in pesos.
The amount does fluctuate from day to day....Brett