Currently biodiesel is produced through the transesterification of waste vegetable oil using methanol and potassium hydroxide. While this method works, the byproducts formed must be separated and the biodiesel “washed” before it is fit for use. These byproducts leave more work to be done as their disposal or purification is required with each batch of biodiesel produced. This can increase production costs making biodiesel a more expensive alternative to fossil fuels. In the literature, solid acids have been shown to catalyze transesterification. The advantages of this procedure are that the acid will be used in catalytic amounts that will reduce the cost of the procedure and the byproducts will be separated much easier in acidic conditions. This research explored various solid acid catalysts and their success in catalyzing transesterification reactions.