Vivarium Humidity Calculator
Compare your enclosure humidity to species-correct ranges for reptiles, amphibians and tortoises — with misting frequency, substrate choice and troubleshooting tips.
Target range
60–80%
In rangeMisting: Heavy mist 1× at night, light 1× morning
Substrate: Bioactive with leaf litter
Allow humidity to drop to 50% between mistings — constant wet causes bacterial skin infection.
Measure with a digital hygrometer at animal height. Analog dial hygrometers are typically off by 10-15%.
Not medical advice. This tool provides general guidance based on common veterinary formulas. Always consult your veterinarian for medical decisions about your pet.
Examples
- Crested gecko at 60%In range — mist heavy once at night
- Bearded dragon at 65%Too wet — improve ventilation
- Chameleon at 40%Too dry — add auto mister + dripper