# FSD share calculator

https://cushly.eu/tools/fsd-share/ · Updated 24 September 2026

Enter the kilometres you drove and how many of them were on FSD (Supervised). Use the same period for both.

## Inputs

- `total`: All kilometres in the period (number, default 15000 km)
- `fsd`: Kilometres on FSD (Supervised) (number, default 9000 km)

## Result (defaults)

FSD (Supervised) drove 60% of your kilometres.
- All kilometres: 15,000 km
- On FSD (Supervised): 9,000 km
- You drove yourself: 6,000 km
- FSD share: 60.0%

## How it works

FSD share = kilometres on FSD (Supervised) ÷ all kilometres × 100. Take both numbers from the same period: a month, a year, or since you bought the car.

## Example

You drove 20,000 km last year, 12,000 of them on FSD (Supervised). 12,000 ÷ 20,000 × 100 = **60%**.

Why it matters for insurance is in [FSD crash in Europe: who pays for the damage?](https://cushly.eu/guides/fsd-crash-who-pays/).

## Questions

### Where do I find my FSD kilometres?

Use the trip or drive statistics your car or app shows. If it only shows a percentage of drives, use that as an estimate.

### Is anything I enter stored?

No. The calculation runs in your browser and nothing is sent.

## Sources

- [Tesla: Full Self-Driving (Supervised) support page](https://www.tesla.com/support/autopilot)