Aligner wear time calculator
Most orthodontists ask for 22 hours a day, which leaves about 2 hours out for eating and brushing. Enter today's out-time and this tells you what is left and by when your trays need to be back in.
Out so far today
Starting a tray late?
Why 22 hours?
Most clear-aligner treatment plans ask for 22 hours of wear a day, which leaves about 2 hours for meals, coffee and brushing — every hour trays spend in a case instead of your mouth is an hour treatment isn't moving forward. This calculator only does arithmetic on the numbers you type in; it has no idea what your treatment plan actually calls for. Your orthodontist set your real target, so ask them if you're not sure what yours is.
Track this automatically
Typing today's out-time into a calculator works, but Wearclock taps a button and does this same math for you automatically, with a reminder before today's budget runs out.
Frequently asked questions
- Why 22 hours a day?
- Most clear-aligner treatment plans ask for 22 hours of wear a day, leaving about 2 hours for meals and brushing, because every hour trays sit out is an hour treatment isn't moving forward. This calculator only does arithmetic on the numbers you enter — your orthodontist set your actual target, so ask them if you're not sure what yours is.
- How can I track this automatically?
- Wearclock taps a button when you take trays out and when you put them back in, and does this same math for you automatically, with a reminder before you run out of budget. It is free, offline, and works on Android and iPhone.