Launch strip: where each car is at the moment you react. 0.00 m. 60 mph at 10.86 m.
| Car | Distance | Speed |
|---|---|---|
| 0.81 s demo | 0.00 m | 0.0 km/h |
| 0.59 s Rocket | 0.00 m | 0.0 km/h |
| 1.9 s (2017) | 0.00 m | 0.0 km/h |
Space or Enter works too.
- Distance covered
- Target speed
Launch strip: where each car is at the moment you react. 0.00 m. 60 mph at 10.86 m.
| Car | Distance | Speed |
|---|---|---|
| 0.81 s demo | 0.00 m | 0.0 km/h |
| 0.59 s Rocket | 0.00 m | 0.0 km/h |
| 1.9 s (2017) | 0.00 m | 0.0 km/h |
Space or Enter works too.
False starts don't count. Tapping before GO shows “Too soon” and the try starts over. A tap under 100 ms after GO is treated as a guess too: no one reacts to a light that fast, because the signal has to travel from the eye to the brain and down to the finger. Both are shown in the count under your tries, never mixed into your time.
How the time is measured. The moment the light changes, the page notes the timestamp of the screen frame that paints GO, and your tap or key press carries its own timestamp from the browser. Your reaction time is the difference. That still includes a little delay from your screen and touch panel, so times here usually run a bit slower than in a lab. Use the same device for every try and compare medians.
Tesla says the new Roadster prototype went from 0 to 60 mph in 0.81 seconds at its October 15, 2026 reveal. That is Tesla's claim (no independent test yet). Here is what the number means if you take it at face value.
Speed. 60 mph is exactly 26.8224 m/s (96.56 km/h). Note: that's not 0 to 100 km/h, which would take a bit longer.
Acceleration. With one published number we assume the push is constant: a = v ÷ t = 26.8224 ÷ 0.81 = 33.11 m/s². Divided by standard gravity (9.80665 m/s²) that is 3.38 g, more than three times the force of gravity, pushing you back into the seat. Real launches pull hardest in the first instant and fade, so this is an estimate.
Where the car is when you react. If your reaction time is r seconds and r is shorter than the launch, the car's speed is a × r and the distance from the line is ½ × a × r². If you take longer than the whole launch, the car is already at 60 mph, and we assume it holds that speed: distance = ½ × a × t² + 26.8224 × (r − t).
Worked example. A reaction of 0.250 s against the 0.81 s claim: speed = 33.114 × 0.25 = 8.2785 m/s = 29.8 km/h (18.52 mph), and distance = ½ × 33.114 × 0.25² = 1.0348 m. The whole run to 60 mph takes only 10.86 m, about two and a half car lengths.
Typical people in a study of 1,469 adults reacted to a light in 231 ms on average. The table shows where each launch would be by then.
| 0-60 mph | g | Distance to 60 mph | Speed at 0.231 s | Distance at 0.231 s |
|---|---|---|---|---|
| 0.81 s demo | 3.38 g | 10.86 m | 17.1 mph (27.5 km/h) | 0.88 m |
| 0.59 s Rocket | 4.64 g | 7.91 m | 23.5 mph (37.8 km/h) | 1.21 m |
| 1.9 s (2017) | 1.44 g | 25.48 m | 7.3 mph (11.7 km/h) | 0.38 m |
To go from standstill to 60 mph (26.82 m/s) in 0.81 s, a car has to gain about 33.1 m/s of speed every second, or 3.38 g, and it covers only 10.86 m doing it. In the 0.231 s a typical person needs to react to a light, it would already be doing about 17.1 mph (27.5 km/h), 0.88 m from the line.
About 3.38 g, assuming the push is steady all the way. That is acceleration divided by standard gravity (9.80665 m/s²): 26.8224 ÷ 0.81 ÷ 9.80665. For comparison, Tesla's 0.59 s Rocket target would be 4.64 g and its 2017 promise of 1.9 s is 1.44 g.
In one large online study (Woods et al. 2015, 1,469 people), the average simple reaction time to a visual signal was 231 ms, or 213 ms after removing the test hardware's own delay. This page uses 231 ms as the “typical person” mark. Your own number depends on your device, how alert you are, and practice.
It is Tesla's claim from its October 15, 2026 Roadster reveal in McGregor, Texas, where an uncrewed prototype ran the demo. No independent test has been published, and production is targeted for 2028. Tesla promised 1.9 s back in 2017. That's why every Tesla figure here carries a dashed Claimed badge.
No. It is 0 to 60 mph, which is 96.56 km/h. A 0 to 100 km/h run would take a little longer. Use the My car option to compare your own car's 0 to 100 km/h time; that one is worked out against 100 km/h.
Phones and monitors only redraw 60 to 120 times a second, touch screens take a moment to report a tap, and browsers add a little more. Lab rigs remove most of that. Use the same device for every try and compare your median, not one lucky tap.
Nobody reacts to a light that fast: the signal has to travel from the eye to the brain and down to the finger. A tap under 100 ms means you guessed the moment, so it is shown but not counted, the same as a tap before GO (a false start).
No. Everything is measured and drawn in your browser. Your times are never uploaded or stored, and the result card is made on your device. Analytics only counts anonymous events like which comparison car was picked.
0.81 s demo, 260 kg of compressed air
Yahoo Finance: Tesla shares climb after Roadster reveal (0.81 s demo) (opens in a new tab)
Uncrewed prototype demo; Rocket target under 0.59 s, not road-legal
Trims, 2028 production target, the 2017 promise of 1.9 s
Fortune: Roadster trims, 2028 production, the 2017 1.9 s promise (opens in a new tab)
Video of the reveal
CNN: Tesla unveils what it says is a flying car (opens in a new tab)
Mean simple reaction time 231 ms (213 ms hardware-corrected), n = 1,469
Checked
Your times never leave this device.
The test runs entirely in your browser. Reaction times, your car's 0-100 km/h time and the result card are never uploaded or stored; reload the page and they're gone. The page counts a few anonymous events, like which comparison car was picked or whether a card was shared, and never the numbers.
This is a fun test, not a medical or driving-fitness assessment. Not affiliated with Tesla, Inc. Tesla's figures are the company's own claims and are marked as such.