Monster XP

About the monster Herblore XP tool

Pick a monster and your kills per hour, and see how much Herblore XP its herb and seed drops are worth, per kill and per hour. Useful for OSRS ironmen deciding where to farm herbs: the tool ranks farmable monsters by banked Herblore XP so you can compare Nechryael, Aberrant spectres, Turoth, and the rest at a glance.

How the numbers are computed

Drop tables come from the OSRS Wiki's own structured drop data, read through its Bucket API, for 360 monsters that drop herbs or herb seeds. The previous source, osrsbox-db, stopped being updated in 2021, and moving off it corrected three things.

• Superior slayer monsters were undercounted threefold. Superiors roll the herb table three times per kill. The old data had no way to record that, so an Abhorrent spectre showed exactly the same herb yield as an ordinary Aberrant spectre. It is three times higher.
• Herb table quantities were a flat midpoint, and were wrong in both directions. When the shared herb table drops 1 to 3 herbs, the split is not even, and it is not the same for every monster. Aberrant spectres get one herb 11/26 of the time, two 11/26 and three 4/26, an average of 1.73, so their old numbers were about 15 percent too high. Twisted Banshees and King kurask always drop three, so theirs were a third too low. The tool now uses the distribution the wiki publishes for each monster, and anything outside the shared herb table still uses the midpoint of its own range.
• Each NPC version is now kept separate. A monster like Zombie has several versions with different drop tables, and the old source merged them into one list. The wiki labels every drop with the version it came from, so the tool now reads each version on its own and reports the richest one. A single kill only ever hits one version, so summing them would overcount multi version monsters several times over.

Herb drops are valued through the same model as the Bank XP calculator: each herb makes the one potion you selected for it in the potion settings, and every herb you left unselected becomes Mastering Mixology paste; seed drops are grown into expected herbs with your Farming settings. XP scales linearly with your kill rate.

Frequently asked questions