Look up the most recent exchange rate for the PHP in USD. This can be found in the financial section of most major newspapers or online. A reliable online website for exchange rates is forex.com.
Divide the PHP amount you wish to convert by the exchange rate if it is listed PHP=USD to find the equal value in USD.
Multiply the amount of PHP by the exchange rate if it is labeled USD=PHP.
Navigate to an online currency converter. Yahoo! provides a reliable currency converter at http://finance.yahoo.com/currency-converter.
Select the PHP currency type on the left side of the conversion matrix and USD on the right side.
Type in the PHP amount to be converted in the box labeled "Please enter an amount of PHP." The equal amount of USD will be displayed on the right side of the conversion matrix.
Click the "Show Help Using This Converter" link for help with Yahoo!'s currency converter.