Ohio at a glance
- Kindergarten: Age 5 by the first day of school..
- Compulsory school age: 6 to 18.
- Required instructional time: Set by city board days; K: 450 h; Full-day K-6: 910 h; 7-12: 1,001 h hours.
- Statewide grading scale: none identified; grading is generally set by districts.
- Remote learning instead of snow days: allowed under state rules (up to 3 days).
Kindergarten entry age
In Ohio, a child can typically start kindergarten if they are Age 5 by the first day of school.. A child born just after the cutoff usually starts a year later — which is why two children born weeks apart can be a full grade apart.
Use the What Grade Am I In? calculator to turn a birthday into a grade level, or compare all states in our kindergarten cutoff table. Source: Education Commission of the States.
School year and attendance
| Rule | Ohio | Source |
|---|---|---|
| Compulsory school age | 6–18 | ECS |
| Minimum instructional days | Set by city board | ECS (2023) |
| Minimum instructional hours | K: 450 h; Full-day K-6: 910 h; 7-12: 1,001 h | ECS (2023) |
Instructional-time rules decide how many missed days must be made up — the reason a winter with several snow days can push the last day of school later. Count down to yours with the Days Until Summer tool.
Grading scale
We did not find a statewide grading scale for Ohio — in most states the scale is set by the district or even the school, and many use 90/80/70/60 or a plus/minus variant. Check your student handbook, then convert scores with our grading scale converter.
Snow days and remote learning
Columbus averages about 28.2 inches of snow a year (1991–2020 normals, source), which puts Ohio in our regular snow tier. Districts used to heavy snow need more of it to close; places that rarely see snow close for less.
ORC 3313.482: plan adopted by Aug 1 lets schools make up hours via online instruction for hazardous weather etc. closures, up to the equivalent of three school days of hours; needs teacher-union written consent; the classic 'blizzard bag' successor. Source.
Estimate tomorrow's odds with the Ohio Snow Day Calculator.
SAT and ACT scores in Ohio (class of 2026)
Ohio's class of 2026 averaged 1034 on the SAT with 22% of graduates tested, and 19.2 on the ACT with 66% tested. Nationally the averages were 1045 (SAT) and 19.2 (ACT).
| Measure | Ohio | U.S. | Rank (of 51) |
|---|---|---|---|
| SAT participation | 22% | n/a | 30 |
| SAT average total | 1034 | 1045 | 35 |
| SAT Reading & Writing / Math | 523 / 511 | 528 / 517 | — |
| SAT total, class of 2025 | 1018 | 1029 | — |
| ACT participation | 66% | 38% | 20 |
| ACT average composite | 19.2 | 19.2 | 34 |
Participation in Ohio is partial on both tests, so each average reflects a mix of students who chose to test. Compare scores only with states that have similar participation. The SAT and ACT scores by state study shows this participation effect across all 50 states and DC. To see where a single score lands, use the SAT score calculator or the ACT score calculator.
Sources: College Board SAT Suite of Assessments Annual Report (Ohio, 2026); ACT 2026 average scores by state. Ranks are among the 50 states and DC.
Free tools for Ohio families and teachers
- High school GPA calculator and final grade calculator
- AP score calculator for May exams
- EZ Grader and report card comments for teachers
- Homework planner and the 10-minute homework rule
State rules change. Facts were checked against the linked sources on October 14, 2026; confirm with your district or state education department.