Here's a table with the diameters of the planets in our solar system, listed from smallest to largest:

| Planet | Diameter (km) | Diameter (miles) |

| --------------- | -------------- | ---------------- |

| Mercury | 4,880 | 3,032 |

| Mars | 6,779 | 4,217 |

| Venus | 12,104 | 7,521 |

| Earth | 12,742 | 7,917 |

| Neptune | 49,528 | 30,775 |

| Uranus | 51,118 | 31,763 |

| Saturn | 120,536 | 74,898 |

| Jupiter | 142,984 | 88,846 |

Note: These are equatorial diameters, meaning they measure the planet across its widest point.