Encounter Calculator let's you balance 5th Edition encounters and generate random encounters for any size and level of party. It also let's you enter specific monsters to see what level of encounter it would be for the given party. You can randomly or manually select Easy, Medium, Hard, or Deadly, as well as any number of monsters from any number of environments. The formulas and logic are from the Dungeon Master's Guide and all creatures from the Monster Manual, Volo's Guide to Monsters, and Mordenkainen's Tome of Foes are included.