Quick answer: Missouri presumes, rebuttably, that an award of equal or approximately equal parenting time to each parent is in the child’s best interests. The presumption can be rebutted by a preponderance of the evidence, including by agreement of the parents or a pattern of domestic violence. A parent planning to move the child gives 60 days’ written notice.
This Missouri parenting time calculator turns a schedule into overnights a year and shows how far it is from the equal split that RSMo 452.375 starts from. Enter the overnights in a 14-day cycle and any extra nights: the result is arithmetic, and the court decides custody and support.
Missouri parenting time and custody rules at a glance
| Rule | What Missouri says |
|---|---|
| Presumption | A rebuttable presumption that equal or approximately equal parenting time to each parent is in the child’s best interests, rebuttable only by a preponderance of the evidence (RSMo 452.375.2) |
| Rebutted by | An agreement of the parents on all custody issues, or a pattern of domestic violence, or the other relevant factors (452.375.2) |
| Findings | If the parties have not agreed, the court enters written findings on the public policy and each of the eight factors (452.375.6) |
| Joint physical custody | Significant, but not necessarily equal, periods of time, assuring frequent, continuing and meaningful contact with both parents (452.375.1(3)) |
| Parenting plan | Every custody judgment includes a specific written parenting plan (452.375.9) |
| Moving | Written notice by certified mail at least 60 days before a relocation of 90 days or more; the other parent has 30 days to object (452.377) |
How do custody and parenting time work in Missouri?
- Joint or sole custody. See joint versus sole custody in Missouri.
- Schedules. See parenting time schedules in Missouri.
- Moving with a child. See moving away with a child in Missouri.
What does this parenting time calculator check?
You enter the overnights the other parent has in a typical 14-day cycle and any extra overnights a year, such as summer and holidays. The calculator scales the cycle to 365 nights, adds the extras, and shows each parent’s overnights and percentage and the distance from an equal split of 182.5 nights. It does not calculate child support, which uses its own overnight adjustment: use the Missouri child support calculator for that, and the Missouri divorce timeline calculator for the dates of the case.
Frequently asked questions
Does Missouri presume joint custody and equal time?
Yes, rebuttably: equal or approximately equal parenting time is presumed to be in the child’s best interests.
How many overnights is approximately equal in Missouri?
The statute names no number; equal is 182.5 overnights each, and the court decides what is approximately equal.
Does shared time change Missouri child support?
Yes. Form 14 gives an overnight adjustment; the Missouri child support calculator applies it.
Does domestic violence affect Missouri custody?
Yes. A pattern of domestic violence can rebut the equal-time presumption, and custody must be ordered to protect the child and the victim.
Does this Missouri calculator set child support?
No. It counts overnights; the Missouri child support calculator estimates the guideline amount.