What are the odds of dying on a motorcycle?
Evidence quality 4.5/5
Eight-dimension review score against the quality rubric . Each dimension scored 1–5.
- D1 Source grounding
- 5/5
- D2 Source authority
- 5/5
- D3 Arithmetic
- 5/5
- D4 Uncertainty
- 4/5
- D5 Scope
- 5/5
- D6 Prose
- 4/5
- D7 Perception honesty
- 4/5
- D8 Caveat completeness
- 4/5
Lifetime probability · lifetime, US adult
1 in 694
0.1% lifetime chance
range 1 in 1,250 to 1 in 33
● your factors — click this risk ▾ to reveal
≈ As likely as
Perceived
Most non-riders rate motorcycles as obviously dangerous, and most riders know the per-mile numbers are bad but take them anyway. The interesting feature of this fear is that it's roughly calibrated in direction (motorcycles are genuinely much riskier than cars per mile) but usually miscalibrated in magnitude, especially when people try to translate "dangerous" into a concrete probability.
Rough estimate: ~1 in 100 per year of riding feels about right to most non-riders
Source: editorial intuition, not polled
Actual
~31.4 motorcyclist deaths per 100 million vehicle miles (US, 2023)
US motorcyclists, 2023
Show derivation
US population-average figure: 6,335 motorcyclist deaths in 2023 across ~260 million US adults = ~2.44e-5 per year, multiplied by 59 years of remaining adult life. This number is heavily diluted by the ~90 percent of US adults who never ride. For an active rider putting 2,000 miles a year on a motorcycle, the direct per-mile rate implies roughly 1 in 50 over a 30-year riding career. For a non-rider the lifetime risk is effectively zero. The population average is the figure you would expect to see for a randomly chosen US adult and is included for comparability with the other Likelier entries; it is not the right number for an individual rider.
Caveats: The per-capita lifetime figure of ~1 in 700 is the least useful number on this p…
The per-capita lifetime figure of ~1 in 700 is the least useful number on this page and is included only for cross-category comparability. Motorcycle risk is almost entirely concentrated in the minority of adults who ride; for non-riders the number is effectively zero, and for a typical active rider putting 2,000 miles per year on a bike over a 30-year career the implied lifetime risk is closer to 1 in 50. Within the rider population, risk varies by another order of magnitude based on helmet use, alcohol, bike class (sport vs cruiser vs touring), urban vs rural roads, and rider age: 35 percent of 2023 motorcyclist fatalities were unhelmeted, and 41 percent of riders killed in single-vehicle crashes were alcohol-impaired. The per-mile rate also excludes off-road and track riding, which are accounted for separately.
Regional breakdown
The headline figure averages across very different populations. Here’s how the probability varies by geography or context:
| Region / context | Lifetime probability | Notes |
|---|---|---|
| universal helmet-law state (CA, NY, MA) | 1 in 1,000 |
NHTSA: states with universal helmet laws have roughly 30% lower motorcycle fatality rates than partial/no-helmet states |
| partial or no helmet law (FL, TX, IA) | 1 in 500 |
unhelmeted rider fraction is substantially higher in these states |
| never-rider | 1 in 10,000,000 |
near-zero exposure to motorcycle crash risk; deaths from other vehicles striking motorcycles are captured elsewhere |
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The useful number here is the one per mile, not the one per lifetime. In 2023 the US saw 31.4 motorcyclist fatalities per 100 million vehicle miles traveled, against 1.13 for passenger car occupants — roughly a 28-fold gap. That gap widened from 22x in 2022 mostly because motorcycle mileage fell by about 15 percent while fatality counts held near their all-time high of 6,335. For an active rider putting 2,000 miles a year on a bike over a 30-year riding career, the per-mile rate compounds to a lifetime probability on the order of 1 in 50. For a random US adult it’s closer to 1 in 700, because most US adults never ride at all.
That heterogeneity is why the normalized “lifetime US adult” number on this page is the least informative figure on it. Unlike flying, where nearly everyone flies a little, or cars, where nearly everyone rides in one daily, motorcycle exposure is heavily concentrated in a minority of the population. Averaging their risk across the whole country produces a number that is both technically correct and individually meaningless: the 90 percent of adults who don’t ride contribute almost nothing to the numerator and almost everything to the denominator.
Inside the rider population, the number still doesn’t apply uniformly. Thirty-five percent of the 2023 motorcyclist fatalities were unhelmeted, and 41 percent of riders killed in single-vehicle crashes were alcohol-impaired. Helmet laws, road type, bike class, and rider age each move the conditional risk by a meaningful fraction. A helmeted, sober, experienced rider on a touring bike on rural interstates is not running the same probability as the population average, and neither is the opposite profile. The figure on this page is the average over all of them; treat it as the starting point for a calculation about yourself, not the answer.
Claim ledger
Every number below is what each source reported, with the verbatim quote we relied on and how we arrived at our figure. Click any link to verify directly.
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[1] Insurance Institute for Highway Safety (IIHS) — Fatality Facts 2023: Motorcycles and ATVs
Fatality Facts 2023: Motorcycles and ATVs- Statistic
6,335 motorcyclist deaths in 2023; per mile traveled in 2022, motorcycle deaths were nearly 22 times car deaths- Excerpt
“"A total of 6,335 motorcyclists died in crashes in 2023. That is the highest number ever recorded and a 26% increase since 2019. Motorcycle deaths accounted for 15% of all motor vehicle crash deaths in 2023 and were about triple the number of motorcyclist deaths in 1997. Per mile traveled in 2022, the number of deaths on motorcycles was nearly 22 times the number in cars." ”
- Source data from
- 2024-12-01
- Accessed
- 2026-04-11 · archived copy
- Calculation
- IIHS compiles FARS fatality counts and computes the per-mile ratio against passenger cars. Used for the total 2023 death count and the cars-vs-motorcycles multiplier that anchors the "22x to 28x more dangerous" headline. The per-mile ratio rose from ~22x in 2022 to ~28x in 2023 because US motorcycle VMT dropped roughly 15 percent while fatalities held nearly flat.
- Independence
- IIHS draws from NHTSA's FARS database, so it is not fully independent of the NHTSA Traffic Safety Facts source below. They agree because they share a dataset, not because they're two separate measurements.
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[2] National Highway Traffic Safety Administration (NHTSA) — Traffic Safety Facts 2023 Data: Motorcycles (DOT HS 813 732)
Traffic Safety Facts 2023 Data: Motorcycles (DOT HS 813 732)- Statistic
31.39 motorcyclist fatalities per 100 million VMT in 2023 vs 1.13 for passenger car occupants- Excerpt
“"In 2023, there were 6,335 motorcyclists killed — 15% of all traffic fatalities. Per vehicle miles traveled in 2023, motorcyclists were about 28 times more likely than passenger car occupants to die in a motor vehicle crash and were 5 times more likely to be injured." ”
- Source data from
- 2024-08-01
- Accessed
- 2026-04-11 · archived copy
- Calculation
- NHTSA's per-VMT rate of 31.39 fatalities per 100 million motorcycle miles is the native figure. Converting: 31.39 / 1e8 ≈ 3.14e-7 deaths per mile ridden. For an active rider at 2,000 miles per year over 30 years that's ~0.0188 (about 1 in 53). For the population-average lifetime figure we use 6,335 deaths / ~260M US adults ≈ 2.44e-5 per year, compounded over 59 years ≈ 1.44e-3, or roughly 1 in 700. Both are reported because the population figure hides the fact that essentially all of the risk falls on the ~10 percent of adults who actually ride.
- Independence
- NHTSA's Traffic Safety Facts series is the upstream source that IIHS and most other US motorcycle-safety publications cite. Treat IIHS and NHTSA as one source chain for verification, not two independent estimates.