The Hitpoints skill determines the maximum amount of Hitpoints the player can have and their passive regeneration rate. The player's maximum Hitpoints are calculated by multiplying the Hitpoints skill level by 10. Hitpoints experience can be earned by dealing damage to Monsters. 0.133 XP is awarded per point of damage done to a monster. This experience can be increased by 7% by equipping the Gold Emerald Ring.
Hitpoints are passively regenerated once every 10 seconds, with 1 Hitpoint (HP) being gained per interval by default. This amount is increased by 1 for every 10 levels in Hitpoints, and by an additional 10 HP if the Hitpoints Skillcape is equipped. Equipping the Gold Ruby Ring increases this amount by 10%. The Rapid Heal Prayer doubles the amount. Regeneration Potions provide a 3-12% chance to double the amount. These effects are multiplicative. Hitpoints may also be replenished by eating Food. Raising Hitpoints to level 99 will unlock the Hitpoints Skillcape for purchase from the Shop.