Custody Time Percentage Calculator
Work out the exact overnight percentage for any parenting schedule. Choose a common rotation or tap out your own 14-day pattern — the math updates instantly.
Free · No sign-up · Nothing leaves your browser
Parent A
50.0%
7 of 14 overnights per cycle
≈ 183 overnights per year
Parent B
50.0%
7 of 14 overnights per cycle
≈ 183 overnights per year
Courts count overnights, not hours — a dinner visit that ends at 8pm does not change the percentage. If you want the same numbers laid out month by month, run the custody schedule generator, or read the full breakdown of every rotation on the custody schedules hub.
Common overnight splits at a glance
| Schedule | Split | Cycle | Overnights / year |
|---|---|---|---|
| 2-2-3 Schedule | 50/50 | 14 days | 183 / 183 |
| 2-2-5-5 Schedule | 50/50 | 14 days | 183 / 183 |
| 3-4-4-3 Schedule | 50/50 | 14 days | 183 / 183 |
| Week-on / Week-off Schedule | 50/50 | 14 days | 183 / 183 |
| Every Other Weekend Schedule | 86/14 | 14 days | 313 / 52 |
| 4-3 Schedule | 57/43 | 7 days | 209 / 156 |
Cite or share this tool
Free to reference on your own site, in a client handout, or in a court filing. Attribution link below.
Plain link
https://custodytrac.com/tools/custody-percentage-calculatorHTML attribution
<a href="https://custodytrac.com/tools/custody-percentage-calculator">Custody Time Percentage Calculator — CustodyTrac</a>More free tools
Child Support Estimator
Estimate a monthly child support figure from both incomes, number of children, and the overnight split. Educational estimate only.
OpenExpense Split Calculator
Compare a 50/50 split against an income-proportional (pro-rata) split across every shared child expense.
OpenSchedule Generator
Pick a schedule (2-2-3, 2-2-5-5, week-on/off…), a start date, and get a printable 12-month calendar in seconds.
OpenTrack it for real, not on paper
CustodyTrac keeps the schedule, expenses, and messages in one shared record both parents can see — and exports it court-ready. Free for both parents.
Create your free account