The distance between Earth and Venus varies depending on the position of the two planets in their respective orbits around the sun.
At their closest approach, the distance between Earth and Venus is about 38 million kilometers (24 million miles).
At their most distant, the distance increases to about 261 million kilometers (162 million miles).
To give some context, the average distance from Earth to the Sun is about 149.6 million kilometers (93 million miles), so the distance between Earth and Venus can be quite significant at times. However, both Venus and Earth are relatively close to the Sun compared to other planets in the solar system, so the distance between them is relatively small on a cosmic scale.