Hearing Time Calculator

Supporting Your Child’s Hearing Journey

Consistent access to sound helps children build strong speech and language skills. Research suggests that wearing devices for about 80% of waking hours—measured as Hearing Hours Percentage (HHP)—is linked with stronger language development by preschool age (Park et al., American Journal of Audiology, 2019).

The calculator below gives you clear, practical guidance:

See your child’s listening percentage instantly (based on age and daily device use)
Compare wear time with the research-based 80% benchmark
Find out how many hours per day meet the 80% goal

Hearing Hours Percentage (HHP) Calculator

HHP = (Hours worn ÷ Age-adjusted awake hours) × 100.

Child’s age (months) Average hours worn per day

What is HHP and why aim for ~80%?

Hearing Hours Percentage (HHP) compares how long a child wears their cochlear implant each day with how long same-age peers are typically awake. Reaching about 80% of waking hours with devices on is strongly linked with better language outcomes by preschool age (Park et al., American Journal of Audiology, 2019).

Note: Awake-time estimates are based on pediatric sleep research; your audiologist can personalize guidance for your child.