Checked against the handbook: 2024-2025 edition. Values below come from the Ohio Digest of Motor Vehicle Laws published by the Ohio Bureau of Motor Vehicles, which we host as a free PDF on this site, except 1 row marked as current law, where the printed handbook is out of date and we cite the statute or agency page instead. Nothing comes from a driving school, a forum or another prep site.
The Ohio written test is full of numbers: how far, how fast, how old, how long, how much. This page puts 35 of them in one place, grouped into 11 sections. The biggest sections are distances and following (8), speed and passing (5), and vehicle and equipment (5).
A few you will meet early:
- BAC limit for drivers under 21: 0.02% BAC (under 21)
- Minimum age of the licensed driver supervising a permit holder aged 16 to 17: 21 years old
- Distance to stop from a school bus with flashing red lights (road with fewer than four lanes): At least 10 feet
We started from our own Ohio question bank, not from a generic list, so every row is a number our questions actually test. We then took the bank's answer out of the picture and read the figure in the handbook itself. If the handbook does not state a number, it is not on this sheet, even when a question tests it. In 3 places our question bank and the handbook differed. Those rows are flagged and show the handbook value.
Ohio · Numbers reference
Every number the Ohio written test can ask you for, in one place, taken from the official driver handbook and built to print.
Showing all 35 numbers
Permits and new drivers (graduated licensing)
4 numbers| Value | Rule |
|---|---|
| 21 years old | Minimum age of the licensed driver supervising a permit holder aged 16 to 17Temporary instruction permit (TIPIC), holder aged 16 to 17; from midnight to 6 a.m. the driver must be accompanied by a parent, guardian or custodian |
| 50 hours (at least 10 at night) | Supervised practice driving hours required before a license (under age 21)Drivers under age 21 |
| Midnight to 6 a.m. | Night driving ban for under-18 drivers in the first 12 months of holding a licenseUnless with a parent or guardian, or going to or from work, or a school or religious event |
| One non-family passenger | Non-family passengers allowed for under-18 drivers in the first 12 monthsUnless accompanied by a parent or guardian |
Speed and passing
5 numbers| Value | Rule |
|---|---|
| 15 mph | Speed limit in alleys within a municipal corporation |
| 20 mph | Speed limit in a school zone during recess and while children are arriving or leavingDuring normal hours of operationOur question bank and the state handbook disagree here. The handbook value is published. |
| 35 mph | Speed limit on state routes or through highways within a municipal corporation, outside business districts |
| 70 mph | Speed limit on rural freewaysWhere posted |
| Only if it is going under half the posted speed limit | Crossing a solid yellow line to pass a slow-moving vehicleAlso: do not exceed the speed limit while passing and have clear space in the oncoming lane |
Distances and following
8 numbers| Value | Rule |
|---|---|
| At least 10 feet | Distance to stop from a school bus with flashing red lights (road with fewer than four lanes)Road with fewer than four lanes, traffic from either direction |
| At least 3 feet | Minimum safety zone when passing a bicycle |
| 15 to 50 feet from the crossing | Where to stop from a railroad crossing when a train is approachingNo closer than 15 feet and no farther than 50 feet |
| At least 335 feet | Loaded truck stopping distance at 55 mph (ideal conditions)Good tires, properly adjusted brakes, ideal conditions |
| Up to 200 feet | How far a large truck's rear blind spot can extend |
| 4 seconds minimum (more in wet conditions) | Minimum following distance behind a motorcyclist |
| 20 to 30 seconds ahead | How far ahead to look (visual search)Ideal target for what is occurring in front of your car |
| At least 10 inches | Minimum distance between your chest and the steering wheel |
Parking
3 numbers| Value | Rule |
|---|---|
| Not more than 12 inches from the curb | Maximum distance from the curb when parkingParallel to the right curb (either curb on a one-way street) |
| Within 20 feet | No stopping, parking or standing within this distance of an intersection or crosswalk |
| Within 10 feet | No parking within this distance of a fire hydrant |
Signals and turns
3 numbers| Value | Rule |
|---|---|
| At least 100 feet | How far before a turn to signal |
| 3rd exit | Roundabout exit to take to turn left |
| As a four-way stop | How to treat an intersection with non-working traffic signalsUnless an officer is directing traffic |
Child restraints and passengers
3 numbers| Value | Rule |
|---|---|
| Age 8, or 4 ft 9 in tall | Booster seat until age or heightChildren age 4 to under 8 need a booster unless 4 ft 9 in or taller |
| Age 12 and younger | Children who should ride in the rear seatTo avoid injury from an air bag |
| Faster than 25 mph | Speed above which a person under 16 may not ride in an open cargo areaTrucks, trailers and semitrailers, unless an exception applies |
Vehicle and equipment
5 numbers| Value | Rule |
|---|---|
| 25 mph or less | Speed the slow moving vehicle emblem signalsvehicles designed to travel at that speed; the Digest words it as 'less than 25 mph'Our question bank and the state handbook disagree here. The handbook value is published. |
| 1/16 inch | Minimum safe tire tread depth |
| Nov 1 through Apr 15 | Dates studded tires are legal |
| 4 and 8 o'clock | Hand position on the steering wheelKeeps hands clear of the air bagOur question bank and the state handbook disagree here. The handbook value is published. |
| $25,000 | Minimum liability insurance for property damagePer accident; injury minimums are $25,000 per person and $50,000 for two or more |
Alcohol limits
1 number| Value | Rule |
|---|---|
| 0.02% BAC (under 21) | BAC limit for drivers under 21Under age 21 |
Penalty points
1 number| Value | Rule |
|---|---|
| 12 points in two years | Points in two years that trigger a license suspensionA six-point warning letter is sent at six points |
Suspensions
1 number| Value | Rule |
|---|---|
| 1 year for a first refusal (2 to 5 years with priors) | License suspension for refusing a chemical testAdministrative License Suspension; length depends on prior refusals or OVI convictions in 10 years |
Crash reporting
1 number| Value | Rule |
|---|---|
| Within six months | Time allowed to file a crash report with the BMV when the other driver was uninsuredDamage over $400 or injury, and the other driver had no insurance |
Other states
Numbers cheat sheets for other states.
- California: every number on one page
- Florida: every number on one page
- Georgia: every number on one page
- Illinois: every number on one page
- North Carolina: every number on one page
- New Jersey: every number on one page
- New York: every number on one page
- Pennsylvania: every number on one page
- Texas: every number on one page
How to use this sheet
Print it (the button above gives a clean one or two page version) or filter it on screen. Do not try to memorize the whole list in one go. Pick one section, say it out loud, then answer practice questions on that topic until the numbers stick.
What this sheet leaves out
The handbook is a summary of the law, not the law itself. Fines, court costs and fees change, and some are set by statute rather than printed in the handbook. We only list what the handbook (or, where marked, the statute) states, so check the Ohio Bureau of Motor Vehicles for anything that decides a real case. The handbook edition used here is 2024-2025; the numbers were last checked against it on November 7, 2026.
Practice the numbers
Start a free Ohio practice test, or read the Ohio DMV test cheat sheet for the exam format, documents and retake rules. You can also read the Ohio Digest of Motor Vehicle Laws the numbers were taken from.
