Persian Limes and Regular limes are almost the same and they both are limes.
But the difference between Persian Limes and Regular Limes is that the Persian Limes are usually larger than regular limes are.
The regular limes are usually smaller in size than the Persian Limes are and also regular limes have thinner skin and are also a little yellow in color.
The Persian Limes have thicker skin and have a brighter green skin.
The taste is nearly the same with Persian Limes and Regular Limes but they are different.