480feet
The tallest pyramid in the world is the Great Pyramid of Giza (also known as the Pyramid of Khufu and the Pyramid of Cheops), in Egypt. It has a height of 480.6 feet (146.5 meters).
The largest pyramid by volume is the Cholula Pyramid in Pueblo, Mexico. It sits on a base over five times larger than the Great Pyramid of Giza.
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If you mean the Great Pyramid of Giza, it is currently 138.8 meters tall. The others are slightly shorter.
At 146.5 m (481 ft) Is the Great Pyramid so I'm guessing other pyramids are around that.
The height of the tallest pyramid, the Great Pyramid of Khufu is about 455 feet (138.8 m). In its original completed state, it was 481 feet tall (146.5 m).
Volume of a pyramid = 1/3*base area*height Height of a pyramid = (3*volume)/base area
The height of a pyramid is taken to be the vertical distance from the centre of the base, to the tip of the pyramid. I.e Not the slope height, which will be longer than the vertical height. If you're asking about the height of an actual pyramid in Egypt, they vary a lot. They're not all a standard size.
Altitude
The height of each lateral face of an unspecified object is unknowable.
http://greatpyramid.wordpress.com/tag/great-pyramid-giza-keops-khufu-coffer-sarcophagus-metrology-pyramidology/